Quantitative Trait Loci for Soybean Seed Yield in Elite and Plant Introduction Germplasm

Download Quantitative Trait Loci for Soybean Seed Yield in Elite and Plant Introduction Germplasm PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 364 pages
Book Rating : 4.:/5 (544 download)

DOWNLOAD NOW!


Book Synopsis Quantitative Trait Loci for Soybean Seed Yield in Elite and Plant Introduction Germplasm by : Matthew David Smalley

Download or read book Quantitative Trait Loci for Soybean Seed Yield in Elite and Plant Introduction Germplasm written by Matthew David Smalley and published by . This book was released on 2002 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic improvement for yield in soybean [Glycine max (L.) Merrill] has been accomplished by breeding within a narrow elite gene pool. Plant introductions (PIs) may be useful for obtaining additional increases in yield if unique and desirable alleles at quantitative trait loci (QTL) can be identified. The objectives of the study were to identify QTL for yield in elite and PI germplasm and to determine if the PIs possessed favorable alleles for yield. Allele frequencies were measured with simple sequence repeat (SSR) markers in three populations that differed in their percentage of PI parentage. AP10 had 40 PI parents, AP12 had 40 PI and 40 elite parents, and AP14 had 40 elite parents. Four cycles of recurrent selection for yield had been conducted in the three populations. Nei's genetic distance indicated that AP10, AP12, and AP14 remained distinct through cycle 4 (C4), but that the genetic diversity narrowed within each population. Less gametic phase disequilibrium (GPD) was observed in the parents used to form the cycle 0 (C0) populations than in C4 of AP12 and AP14. Allele frequencies of the highest-yielding C4 lines in the three populations were compared with the parents used to form the populations of the initial cycles. Allele flow was simulated to account for genetic drift. Ninety-two SSRs were associated with 56 yield QTL. Nine of the QTL had been identified in previous research. Thirty-three favorable marker alleles were unique to the PI parents. The restriction of alleles from the 40 C0 parents to the 20 cycle 1 (C1) parents of AP10 was reflected in the number of alleles that had frequency changes and could explain the reduced genetic variance for yield in the C4 of AP10. Genetic asymmetry may account for the different genetic gain for yield that had been observed between AP10 and AP14.

Confirming QTL for Seed Yield from Exotic Soybean Germplasm

Download Confirming QTL for Seed Yield from Exotic Soybean Germplasm PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (776 download)

DOWNLOAD NOW!


Book Synopsis Confirming QTL for Seed Yield from Exotic Soybean Germplasm by : Charles C. Hendrix

Download or read book Confirming QTL for Seed Yield from Exotic Soybean Germplasm written by Charles C. Hendrix and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The genetic improvement of soybean (Glycine max (L.)) cultivars in North America (N.A.) has, for the most part, been accomplished by intermating elite cultivars. This breeding strategy, combined with the limited N.A. genetic base, has resulted in a very narrow gene pool. Plant introductions (PI) have been used to expand the N.A. genetic base with limited success when conventional breeding methods have been used. Quantitative trait loci (QTL) mapping has been used to identify genetic regions within PIs that could contribute both genetic diversity and improved seed yield potential in the N.A. gene pool. Of the putative QTL for seed yield that have been identified, only a small percentage have been tested in confirmation trials and even fewer have been confirmed. The objective of this study is to confirm putative QTL for seed yield derived from Exotic germplasm that were identified in previous QTL mapping studies. One BC1F9 confirmation population was developed from the cross Kenwood x LG94-1713 to test the QTL associated with SSR loci Satt405 (linkage group (LG), J chromosome (chr) 16) and two BC1F11 populations were developed to test Satt477 (LG O, chr 10) and Satt557 (LG C2, chr 6). Four F8 confirmation populations were developed from the cross of BSR 101 x LG82-8379 to test the QTL linked to Satt142 (LG H, chr 12), Satt225 (LG A1, chr 5), Satt363 (LG C2, chr 6), and Satt544 (LG K, chr 9) and two F9 populations were developed to test Satt168 (LG B2, chr 14) and Satt358 (LG O, chr 10). Unfortunately, no putative QTL for seed yield were confirmed in any of the populations developed from the BSR 101 x LG82-8379 mapping population. A QTL for plant height, maturity, and seed yield associated with Satt557 was confirmed in two populations developed from Kenwood x LG94-1713 with the beneficial allele coming from the LG94-1713 parent but these results were confounded by the tight linkage of Satt557 to the E1 locus. In both populations maturity was delayed by slightly more than 5 days in the lines homozygous for the LG94-1713 allele. However, there were differences between the two populations for both plant height and seed yield. The allele from LG94-1713 in one population increased plant height by 4.6 cm and seed yield by 0.32 Mg ha-1 more than in the second population. We hypothesize that a crossover occurred in one of the populations that separated the putative QTL from Satt557 but not from E1 and this QTL is responsible for the increase in seed yield and plant height. Several polymorphic single nucleotide polymorphism (SNP) markers have been identified between the two parents, which are on either side of Satt557. The lines in both populations are being tested with these markers to determine if and where the crossover occurred. If our assumption is correct, this confirmed QTL for seed yield may add additional genetic diversity and higher seed yield potential to the N.A. gene pool.

Marker Assisted Selection for Seed Yield in Soybean [Glycine Max (L.) Merr.] Plant Row Yield Trials

Download Marker Assisted Selection for Seed Yield in Soybean [Glycine Max (L.) Merr.] Plant Row Yield Trials PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (774 download)

DOWNLOAD NOW!


Book Synopsis Marker Assisted Selection for Seed Yield in Soybean [Glycine Max (L.) Merr.] Plant Row Yield Trials by : Jason D. Neus

Download or read book Marker Assisted Selection for Seed Yield in Soybean [Glycine Max (L.) Merr.] Plant Row Yield Trials written by Jason D. Neus and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantitative trait loci (QTL) controlling seed yield in soybean [Glycine max (L.) Merr.] have been difficult to confirm among populations. Our objective was to determine whether a method of marker-assisted selection (MAS) for seed yield in elite lines would be applicable to selection in soybean plant row yield trials (PRYTs). Lines from two populations with elite parents were grown in PRYTs in 2008 and tested with markers to identify quantitative trait loci (QTL) associated with seed yield. The first population was tested with 53 single nucleotide polymorphism (SNP) markers and the second population with 26 SNP markers. F-tests were conducted to determine which loci were significantly associated with seed yield in the PRYTs. Lines from each population were then selected from the PRYTs to form five groups from each population: high and low seed yield phenotypes, high and low seed yield genotypes, and random. The five groups from each population were planted at eight diverse locations in 2009. In one population, the mean of the genotypic high group was not statistically different than the phenotypic high group. In the other population, the mean of the genotypic high group was within 90 kg/ha-1 of the mean of the phenotypic high group and was superior to the random group for seed yield. Even with the limited marker coverage, the genotypic selection method used in this study successfully identified lines in PRYTs that would not have been selected due to poor seed yield performance in 2008.

Quantitative Trait Loci Associated with Protein, Oil and Carbohydrates in Soybean [Glycine Max (L.) Merr.] Seeds

Download Quantitative Trait Loci Associated with Protein, Oil and Carbohydrates in Soybean [Glycine Max (L.) Merr.] Seeds PDF Online Free

Author :
Publisher :
ISBN 13 : 9781392412466
Total Pages : 0 pages
Book Rating : 4.4/5 (124 download)

DOWNLOAD NOW!


Book Synopsis Quantitative Trait Loci Associated with Protein, Oil and Carbohydrates in Soybean [Glycine Max (L.) Merr.] Seeds by : Ravi V. Mural

Download or read book Quantitative Trait Loci Associated with Protein, Oil and Carbohydrates in Soybean [Glycine Max (L.) Merr.] Seeds written by Ravi V. Mural and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean is mainly cultivated for its oil and high quality protein meal for feed, fuel and food uses. Achieving an improved balance of protein and oil in the seed, along with yield will enhance crop value. In practice, this has been difficult to achieve due to significant negative correlations of oil and protein, and the mostly negative relationship reported between seed protein concentration and yield. Most previous studies have focused on increasing seed oil concentration (SOC) or seed protein concentration (SPC) individually, and a few focused on decreasing raffinosacharides to improve digestibility and metabolizable energy of the feed for monogastric animals. None of the studies to date have considered improving the balance of SOC and SPC by also considering variation in total soluble sugars, which comprise the third largest component in soybean seed. Three related bi-parental recombinant inbred line (RIL) populations were developed by crossing two plant introduction lines that have lower total sugar concentration with two high-yielding soybean lines having higher SOC resulting in two pairs of half-sib populations. The objectives of this study were to identify genomic regions that influence oil, protein and carbohydrate concentrations in the seed in three uniquely structured bi-parental RIL populations using Molecular Inversion Probes (MIPs) markers, and evaluate relationships among seed composition traits and seed yield, seed weight and plant maturity from multiple environments. In total, 51 QTLs for seed, seed composition and plant traits were mapped on 17 chromosomes. All populations showed transgressive segregation for the sum of seed oil+protein concentration (SUM) in both directions but showed little transgressive segregation for SOC or SPC in two populations. There was a positive correlation of SOC and SPC with the SUM in two populations and a near to zero relationship of SUM with plot yield. Over the three populations, about 85% of the lines met processor targets of 10-12 pounds of oil per bushel and would produce 48% protein meal. The selected lines from this study could be further evaluated for yield and desirable agronomic traits in multi-location trials, which could lead to higher yielding soybean lines with improved seed composition. This work will ultimately lead to higher profitability for both the processors and farmers.

Identification and Localization of Quantitative Trait Loci (QTL) and Genes Associated with Oil Concentration in Soybean [Glycine Max (L.) Merrill] Seed

Download Identification and Localization of Quantitative Trait Loci (QTL) and Genes Associated with Oil Concentration in Soybean [Glycine Max (L.) Merrill] Seed PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)

DOWNLOAD NOW!


Book Synopsis Identification and Localization of Quantitative Trait Loci (QTL) and Genes Associated with Oil Concentration in Soybean [Glycine Max (L.) Merrill] Seed by : Mehrzad Eskandari

Download or read book Identification and Localization of Quantitative Trait Loci (QTL) and Genes Associated with Oil Concentration in Soybean [Glycine Max (L.) Merrill] Seed written by Mehrzad Eskandari and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Genetic and Genomic Analyses for Improvement of Soybean Yield

Download Genetic and Genomic Analyses for Improvement of Soybean Yield PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 654 pages
Book Rating : 4.:/5 (15 download)

DOWNLOAD NOW!


Book Synopsis Genetic and Genomic Analyses for Improvement of Soybean Yield by : Benjamin Bruce Stewart-Brown

Download or read book Genetic and Genomic Analyses for Improvement of Soybean Yield written by Benjamin Bruce Stewart-Brown and published by . This book was released on 2018 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: PI 416937 is a Japanese plant introduction which has been utilized in the development of many high yielding lines over the past ~20 years. Nine genomic regions were identified from this PI under positive selection while 17 genomic regions were identified under negative selection. These genomic regions were not significantly associated with yield across replicated yield trials, but a methodology was illustrated for identifying regions under selection for yield and utilizing these regions for incorporation of beneficial diversity. Genomic selection is a strategy for modeling allelic effects across an entire genome to increase the rate of genetic gain for quantitative traits. Implementation of genomic selection for prediction of yield as well as higher heritability traits such as protein and oil content was investigated in soybean. There appeared to be an inflation in predictive ability due to population structure when performing cross-validation. Larger training sets, higher heritability traits, and closer genetic relationships between training and validation sets improved prediction while marker density had little effect. Light-tawny pubescence has been hypothesized to be related to improving yield as this phenotype has been hypothesized to increases light reflectance in the leaf canopy which reduces canopy temperature and plant stress, thus increasing yield potential. QTL mapping and GWAS were used to map and pinpoint the Td locus, but yield trials failed to validate a significant yield advantage associated with the light-tawny phenotype. G13-6299 is a recently released germplasm line from the UGA Soybean Breeding Program which contains 19% exotic pedigree, possesses nematode resistance and desirable agronomic characteristics, and is high yielding. This line was developed for utilization by breeders in order to increase grain yield via the incorporation of beneficial exotic yield alleles.

Detection and Validation of Agronomic and Seed Quality Quantitative Trait Loci in Soybean

Download Detection and Validation of Agronomic and Seed Quality Quantitative Trait Loci in Soybean PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 111 pages
Book Rating : 4.:/5 (438 download)

DOWNLOAD NOW!


Book Synopsis Detection and Validation of Agronomic and Seed Quality Quantitative Trait Loci in Soybean by : Catherine Nyaguthii Nyinyi

Download or read book Detection and Validation of Agronomic and Seed Quality Quantitative Trait Loci in Soybean written by Catherine Nyaguthii Nyinyi and published by . This book was released on 2008 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean seed quality and agronomic traits are important commercially. Agronomic traits such as yield, plant height, lodging, and adapted maturity have been the primary focus of breeders for many years. Seed quality traits are also important as they affect the market price of soybean. Higher protein soybean historically is valued more per unit. It is the goal of plant breeders therefore to simultaneously improve seed quality and agronomic traits. Seed quality and agronomic traits are quantitative traits whose inheritance is governed by many genes, and whose expression is subject to environmental variation. Furthermore, negative correlations between yield and protein, and protein and oil make it even more difficult to select for these traits. Molecular breeding tools such as quantitative trait loci (QTL) can provide breeders with a more direct method of selection for traits at the molecular level. QTL can however be misleading as they are subject to type I and type II errors. QTL validation studies are essential to marker assisted programs as they negate the need for individual breeders to validate every QTL of interest. The purpose of this study was to validate previously reported seed quality and agronomic trait QTL in an independent population derived from an Essex x Williams 82 cross. We were able to validate QTL for all traits and detected novel QTL that may be useful to breeders.

Soybean Breeding

Download Soybean Breeding PDF Online Free

Author :
Publisher : Springer
ISBN 13 : 3319574337
Total Pages : 439 pages
Book Rating : 4.3/5 (195 download)

DOWNLOAD NOW!


Book Synopsis Soybean Breeding by : Felipe Lopes da Silva

Download or read book Soybean Breeding written by Felipe Lopes da Silva and published by Springer. This book was released on 2017-06-10 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was written by soybean experts to cluster in a single publication the most relevant and modern topics in soybean breeding. It is geared mainly to students and soybean breeders around the world. It is unique since it presents the challenges and opportunities faced by soybean breeders outside the temperate world.

History of Soybean Variety Development, Breeding and Genetic Engineering (1902-2020)

Download History of Soybean Variety Development, Breeding and Genetic Engineering (1902-2020) PDF Online Free

Author :
Publisher : Soyinfo Center
ISBN 13 : 1948436205
Total Pages : 1481 pages
Book Rating : 4.9/5 (484 download)

DOWNLOAD NOW!


Book Synopsis History of Soybean Variety Development, Breeding and Genetic Engineering (1902-2020) by : William Shurtleff; Akiko Aoyagi

Download or read book History of Soybean Variety Development, Breeding and Genetic Engineering (1902-2020) written by William Shurtleff; Akiko Aoyagi and published by Soyinfo Center. This book was released on 2020-06-25 with total page 1481 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world's most comprehensive, well documented and well illustrated book on this subject. With extensive subject and geographic index. 152 photographs and illustrations - mostly color, Free of charge in digital format on Google Books.

Soybeans: Improvement, Production, and Uses

Download Soybeans: Improvement, Production, and Uses PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 712 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Soybeans: Improvement, Production, and Uses by : Billy E. Caldwell

Download or read book Soybeans: Improvement, Production, and Uses written by Billy E. Caldwell and published by . This book was released on 1973 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Oil Crops

Download Oil Crops PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 0387775943
Total Pages : 557 pages
Book Rating : 4.3/5 (877 download)

DOWNLOAD NOW!


Book Synopsis Oil Crops by : Johann Vollmann

Download or read book Oil Crops written by Johann Vollmann and published by Springer Science & Business Media. This book was released on 2009-09-18 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: When one is privileged to participate long enough in a professional capacity, certain trends may be observed in the dynamics of how challenges are met or how problems are solved. Agricultural research is no exception in view of how the plant sciences have moved forward in the past 30 years. For example, the once grand but now nearly forgotten art of whole plant physiology has given way almost completely to the more sophisticated realm of molecular biology. What once was the American Society of Plant Physiologists’ is now the American Society of Plant Molecular Biology; a democratic decision to indemnify efforts to go beyond the limits of the classical science and actually begin to understand the underlying biological basis for genetic regulation of metabolic mechanisms in plants. Yet, as new technologies open windows of light on the inner workings of biological processes, one might reminisce with faint nostalgia on days long past when the artisans of plant physiology, biochemistry, analytical chemistry and other scientific disciplines ebbed and waned in prominence. No intentional reference is made here regarding Darwinism; the plant sciences always have been extremely competitive. Technology is pivotal. Those who develop and/or implement innovative concepts typically are regarded as leaders in their respective fields. Each positive incremental step helps bring recognition and the impetus to push a scientific discipline forward with timely approaches to address relevant opportunities.

History of Soybeans and Soyfoods in Iowa (1854-2021)

Download History of Soybeans and Soyfoods in Iowa (1854-2021) PDF Online Free

Author :
Publisher : Soyinfo Center
ISBN 13 : 1948436469
Total Pages : 1800 pages
Book Rating : 4.9/5 (484 download)

DOWNLOAD NOW!


Book Synopsis History of Soybeans and Soyfoods in Iowa (1854-2021) by : William Shurtleff; Akiko Aoyagi

Download or read book History of Soybeans and Soyfoods in Iowa (1854-2021) written by William Shurtleff; Akiko Aoyagi and published by Soyinfo Center. This book was released on 2021-08-10 with total page 1800 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world's most comprehensive, well documented, and well illustrated book on this subject. With extensive subject and geographic index. 325 photographs and illustrations - many color. Free of charge in digital PDF format.

The Soybean Genome

Download The Soybean Genome PDF Online Free

Author :
Publisher : Springer
ISBN 13 : 3319641980
Total Pages : 216 pages
Book Rating : 4.3/5 (196 download)

DOWNLOAD NOW!


Book Synopsis The Soybean Genome by : Henry T. Nguyen

Download or read book The Soybean Genome written by Henry T. Nguyen and published by Springer. This book was released on 2017-09-20 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the application of soybean genome sequences to comparative, structural, and functional genomics. Since the availability of the soybean genome sequence has revolutionized molecular research on this important crop species, the book also describes how the genome sequence has shaped research on transposon biology and applications for gene identification, tilling and positional gene cloning. Further, the book shows how the genome sequence influences research in the areas of genetic mapping, marker development, and genome-wide association mapping for identifying important trait genes and soybean breeding. In closing, the economic and botanical aspects of the soybean are also addressed.

Plant Genome Analysis

Download Plant Genome Analysis PDF Online Free

Author :
Publisher : CRC Press
ISBN 13 : 1000099253
Total Pages : 256 pages
Book Rating : 4.0/5 ( download)

DOWNLOAD NOW!


Book Synopsis Plant Genome Analysis by : Peter M. Gresshoff

Download or read book Plant Genome Analysis written by Peter M. Gresshoff and published by CRC Press. This book was released on 2020-09-10 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant Genome Analysis presents outstanding analyses of technologies, as well as explanations of molecular technology as it pertains to agriculture. Advances in genome analysis, including DNA amplification (DAF and RAPD) markers, RFLPs, and microsatellites are reviewed by accomplished scientists, many of whom are the developers of the technique. Articles by patent lawyers experienced in plant biotechnology present the legal viewpoint. Chapters focus on special elements of genome analysis, such as the: use of antisense technology investigation of telomeres production of plant YACs importance of cell cycle genes in plants. Other chapters focus on specialized topics of genome analysis. These include a description of antisense technology in the study of photosynthesis and a comprehensive review of the characterization and isolation of plant telomere, including their use in varietal discrimination. A detailed anaysis of cytoplasmic male sterility in the french bean that focuses on the mitochondrial genome is described. The book provides a chapter on the production of yeast artificial chromosomes (YACs) carrying soybean DNA. Genes of the cell cycle in plants and their importance in developmental processes are presented, as well as detailed chapters on the molecular mapping of trees (apples and pines), and nodulation-related genes in legumes. A comprehensive index and a complete glossary are included.

The Genetic Architecture of Quantitative Resistance in the Cereals

Download The Genetic Architecture of Quantitative Resistance in the Cereals PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 400 pages
Book Rating : 4.E/5 ( download)

DOWNLOAD NOW!


Book Synopsis The Genetic Architecture of Quantitative Resistance in the Cereals by : Randall Jerome Wisser

Download or read book The Genetic Architecture of Quantitative Resistance in the Cereals written by Randall Jerome Wisser and published by . This book was released on 2006 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Quantitative Genetics in Maize Breeding

Download Quantitative Genetics in Maize Breeding PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1441907661
Total Pages : 669 pages
Book Rating : 4.4/5 (419 download)

DOWNLOAD NOW!


Book Synopsis Quantitative Genetics in Maize Breeding by : Arnel R. Hallauer

Download or read book Quantitative Genetics in Maize Breeding written by Arnel R. Hallauer and published by Springer Science & Business Media. This book was released on 2010-09-28 with total page 669 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maize is used in an endless list of products that are directly or indirectly related to human nutrition and food security. Maize is grown in producer farms, farmers depend on genetically improved cultivars, and maize breeders develop improved maize cultivars for farmers. Nikolai I. Vavilov defined plant breeding as plant evolution directed by man. Among crops, maize is one of the most successful examples for breeder-directed evolution. Maize is a cross-pollinated species with unique and separate male and female organs allowing techniques from both self and cross-pollinated crops to be utilized. As a consequence, a diverse set of breeding methods can be utilized for the development of various maize cultivar types for all economic conditions (e.g., improved populations, inbred lines, and their hybrids for different types of markets). Maize breeding is the science of maize cultivar development. Public investment in maize breeding from 1865 to 1996 was $3 billion (Crosbie et al., 2004) and the return on investment was $260 billion as a consequence of applied maize breeding, even without full understanding of the genetic basis of heterosis. The principles of quantitative genetics have been successfully applied by maize breeders worldwide to adapt and improve germplasm sources of cultivars for very simple traits (e.g. maize flowering) and very complex ones (e.g., grain yield). For instance, genomic efforts have isolated early-maturing genes and QTL for potential MAS but very simple and low cost phenotypic efforts have caused significant and fast genetic progress across genotypes moving elite tropical and late temperate maize northward with minimal investment. Quantitative genetics has allowed the integration of pre-breeding with cultivar development by characterizing populations genetically, adapting them to places never thought of (e.g., tropical to short-seasons), improving them by all sorts of intra- and inter-population recurrent selection methods, extracting lines with more probability of success, and exploiting inbreeding and heterosis. Quantitative genetics in maize breeding has improved the odds of developing outstanding maize cultivars from genetically broad based improved populations such as B73. The inbred-hybrid concept in maize was a public sector invention 100 years ago and it is still considered one of the greatest achievements in plant breeding. Maize hybrids grown by farmers today are still produced following this methodology and there is still no limit to genetic improvement when most genes are targeted in the breeding process. Heterotic effects are unique for each hybrid and exotic genetic materials (e.g., tropical, early maturing) carry useful alleles for complex traits not present in the B73 genome just sequenced while increasing the genetic diversity of U.S. hybrids. Breeding programs based on classical quantitative genetics and selection methods will be the basis for proving theoretical approaches on breeding plans based on molecular markers. Mating designs still offer large sample sizes when compared to QTL approaches and there is still a need to successful integration of these methods. There is a need to increase the genetic diversity of maize hybrids available in the market (e.g., there is a need to increase the number of early maturing testers in the northern U.S.). Public programs can still develop new and genetically diverse products not available in industry. However, public U.S. maize breeding programs have either been discontinued or are eroding because of decreasing state and federal funding toward basic science. Future significant genetic gains in maize are dependent on the incorporation of useful and unique genetic diversity not available in industry (e.g., NDSU EarlyGEM lines). The integration of pre-breeding methods with cultivar development should enhance future breeding efforts to maintain active public breeding programs not only adapting and improving genetically broad-based germplasm but also developing unique products and training the next generation of maize breeders producing research dissertations directly linked to breeding programs. This is especially important in areas where commercial hybrids are not locally bred. More than ever public and private institutions are encouraged to cooperate in order to share breeding rights, research goals, winter nurseries, managed stress environments, and latest technology for the benefit of producing the best possible hybrids for farmers with the least cost. We have the opportunity to link both classical and modern technology for the benefit of breeding in close cooperation with industry without the need for investing in academic labs and time (e.g., industry labs take a week vs months/years in academic labs for the same work). This volume, as part of the Handbook of Plant Breeding series, aims to increase awareness of the relative value and impact of maize breeding for food, feed, and fuel security. Without breeding programs continuously developing improved germplasm, no technology can develop improved cultivars. Quantitative Genetics in Maize Breeding presents principles and data that can be applied to maximize genetic improvement of germplasm and develop superior genotypes in different crops. The topics included should be of interest of graduate students and breeders conducting research not only on breeding and selection methods but also developing pure lines and hybrid cultivars in crop species. This volume is a unique and permanent contribution to breeders, geneticists, students, policy makers, and land-grant institutions still promoting quality research in applied plant breeding as opposed to promoting grant monies and indirect costs at any short-term cost. The book is dedicated to those who envision the development of the next generation of cultivars with less need of water and inputs, with better nutrition; and with higher percentages of exotic germplasm as well as those that pursue independent research goals before searching for funding. Scientists are encouraged to use all possible breeding methodologies available (e.g., transgenics, classical breeding, MAS, and all possible combinations could be used with specific sound long and short-term goals on mind) once germplasm is chosen making wise decisions with proven and scientifically sound technologies for assisting current breeding efforts depending on the particular trait under selection. Arnel R. Hallauer is C. F. Curtiss Distinguished Professor in Agriculture (Emeritus) at Iowa State University (ISU). Dr. Hallauer has led maize-breeding research for mid-season maturity at ISU since 1958. His work has had a worldwide impact on plant-breeding programs, industry, and students and was named a member of the National Academy of Sciences. Hallauer is a native of Kansas, USA. José B. Miranda Filho is full-professor in the Department of Genetics, Escola Superior de Agricultura Luiz de Queiroz - University of São Paulo located at Piracicaba, Brazil. His research interests have emphasized development of quantitative genetic theory and its application to maize breeding. Miranda Filho is native of Pirassununga, São Paulo, Brazil. M.J. Carena is professor of plant sciences at North Dakota State University (NDSU). Dr. Carena has led maize-breeding research for short-season maturity at NDSU since 1999. This program is currently one the of the few public U.S. programs left integrating pre-breeding with cultivar development and training in applied maize breeding. He teaches Quantitative Genetics and Crop Breeding Techniques at NDSU. Carena is a native of Buenos Aires, Argentina. http://www.ag.ndsu.nodak.edu/plantsci/faculty/Carena.htm

Transgenic Plant Technology for Remediation of Toxic Metals and Metalloids

Download Transgenic Plant Technology for Remediation of Toxic Metals and Metalloids PDF Online Free

Author :
Publisher : Academic Press
ISBN 13 : 0128143908
Total Pages : 564 pages
Book Rating : 4.1/5 (281 download)

DOWNLOAD NOW!


Book Synopsis Transgenic Plant Technology for Remediation of Toxic Metals and Metalloids by : M.N.V. Prasad

Download or read book Transgenic Plant Technology for Remediation of Toxic Metals and Metalloids written by M.N.V. Prasad and published by Academic Press. This book was released on 2018-11-20 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transgenic Plant Technology for Remediation of Toxic Metals and Metalloids covers all the technical aspects of gene transfer, from molecular methods, to field performance using a wide range of plants and diverse abiotic stress factors. It describes methodologies that are well established as a key resource for researchers, as well as a tool for training technicians and students. This book is an essential reference for those in the plant sciences, forestry, agriculture, microbiology, environmental biology and plant biotechnology, and those using transgenic plant models in such areas as molecular and cell biology, developmental biology, stress physiology and phytoremediation. Provides in-depth coverage of transgenic plant technology for environmental problems Discusses background and an introduction to techniques and salient protocols using specific plants systems Includes emerging strategies for application of transgenic plans in remediation