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Investigating The Link Between Genetic Distance And Seed Yield In Hybrid Brassica Napus L Using Phenotypic And Genotypic Methods
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Book Synopsis Investigating the Link Between Genetic Distance and Seed Yield in Hybrid Brassica Napus L. Using Phenotypic and Genotypic Methods by : Alexander Peter Cattini
Download or read book Investigating the Link Between Genetic Distance and Seed Yield in Hybrid Brassica Napus L. Using Phenotypic and Genotypic Methods written by Alexander Peter Cattini and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brassica napus L. is an economically important oilseed species cultivated across Western Canada. Hybrid B. napus cultivars compose the majority of the market due to their seed yield and agronomic quality. It is important to attempt to predict high-yielding parental combinations in order to conserve resources during experimental hybrid evaluation. Genetic distance between parents has been implicated in producing high-yielding hybrids and is used as one criteria for determining parental combinations.In the current study, the genetic distance between high erucic acid rapeseed (HEAR) genotypes of B. napus was established using both phenotypic and genotypic criteria. Phenotypic criteria took the form of nine agronomic and seed quality traits gathered from 318 distinct B. napus genotypes over the 2013 and 2014 field seasons in Southern Manitoba. Genotypic criteria took the form of either 291,782 SNP markers identified in 231 distinct B. napus genotypes using genotyping-by-sequencing (GBS) or 230 polymorphic sequence-related amplified polymoprhism (SRAP) markers identified in 160 B. napus genotypes. The genetic distance between available pollinators and a single male-sterile female was established using each set of criteria in an attempt to correlate genetic distance with hybrid yield. Regression analysis was conducted with yield data from hybrid genotypes gathered from 37 field sites from 2011-2014. Using the phenotypic-derived genetic distance, a significant correlation between genetic distance and hybrid yield was uncovered explaining either 22 % or 42 % of the variation in hybrid yield depending upon whether hybrids were grown at three or more, or five or more sites in the analysis, respectively. No significant link was found between GBS or SRAP-derived genetic distance and hybrid yield. These results provide evidence that that phenotypic criteria can be used to establish genetic distance with utility in the selection of high-yielding hybrid genotypes.
Book Synopsis Genetic Characterization of Exotic Germplasm in Spring-type Brassica Napus L. by : Chad Curtis Kramer
Download or read book Genetic Characterization of Exotic Germplasm in Spring-type Brassica Napus L. written by Chad Curtis Kramer and published by . This book was released on 2007 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heterotic Pool Development in Brassica Napus L. by : Corey Lees
Download or read book Heterotic Pool Development in Brassica Napus L. written by Corey Lees and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid development has become an essential component in many major crop species due to the exploitation of heterosis. However, parental combinations that exhibit high heterotic gains can be difficult to obtain if no prior genetic architecture is known. The current research focuses on heterotic gene pool development using genetic distance and multivariate cluster analysis. Seventy-nine inbred accessions were grouped using three different methods including; 1) phenotypic classification based on 20 qualitative and quantitative traits; 2) Sequence related amplified polymorphisms (SRAP) using 29 forward and reverse primer combinations; 3) genotyping-by-sequencing (GBS) using 80,005 single nucleotide polymorphisms. Both genotypic methods (SRAP and GBS) were compared to each other, and hierarchical clustering produced similar results with 68% homology between the two methods. Heterotic cluster accuracy was investigated between the two genotypic methods through hybrid performance. Forty-four hybrid combinations along with parental cultivars were grown at one location in Winnipeg, MB with three replicates in a randomized complete block design. Hybrid yield and heterosis were regressed against the genetic distance from each genotypic method. GBS was a better predictor of hybrids with high yield (R = 0.47, p
Book Synopsis Characterization and Improvement of Ogu-INRA CMS Brassica Napus L. Fertility Restorers by : Valeria N. Lobos Sujo
Download or read book Characterization and Improvement of Ogu-INRA CMS Brassica Napus L. Fertility Restorers written by Valeria N. Lobos Sujo and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In oilseed rape (Brassica napus L.), the use of a pollination control system is essential for hybrid seed production. The Ogu-INRA CMS system is a cytological variant of the radish- (Raphanus sativus L.) derived Ogu CMS system introduced through interspecific introgression into B. napus. In this system, there are three different lines: A-lines are male sterile, B-lines are fertile maintainer lines for the respective A-lines and R-lines (restorer) are male fertility restorer lines. The nature of the introgression produces a variety of issues within the restorer genotypes. These genotypes tend to have poor agronomic performance and high levels of glucosinolates. Apart from the phenotypic caveats, there is limited genomic data regarding the specific size, location and sequence of the introgression. The work presented in this thesis addresses both the genotypic and phenotypic issues present in B. napus restorer genotypes. Homozygous restorer lines are required to produce a fertile F1 generation making a marker for the Rfo gene a requirement in any breeding program. In the first project, an allele-specific Rfo marker was developed using KASP assays. This was achieved for one restorer population and this marker development will aid in several screening processes for breeding programs. The second project focused on the development of high-density SNP-based linkage maps for the C9 chromosome in which the radish introgression had been previously mapped to. The developed maps provided a better understanding of the introgression in our improved restorer populations and will facilitate the development of further markers and guides for sequencing and editing that can result in improved agronomic performance of the restorers. In the third project, the number of intermating cycles required to obtain restorer lines with improved agronomic traits was evaluated using a recurrent selection protocol. Results showed that more than a third of the families had improved seeds per pod, pod number and yield when compared to the best parent after one (C1) and two cycles (C2) of random full-sib intermating in select crosses. This indicates that intermating restorer genotypes can produce improved restorer genotypes. All the findings of this thesis benefit the entire rapeseed industry and expand the knowledge available on the Ogu-INRA CMS restorers.
Book Synopsis Breeding Oilseed Brassicas by : Kuldeep S. Labana
Download or read book Breeding Oilseed Brassicas written by Kuldeep S. Labana and published by Springer Science & Business Media. This book was released on 2013-11-09 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present status of rapeseed-mustard crops as the third most important source of edible oils is attributable to the success of plant breeders and associate researchers in developing high yielding varieties with improved quality and resistance to biotic and abiotic stresses. However, the need to maximize the production gains and quality at lower economic costis greater than ever before. "Breeding Oilseed Brassicas" was thus conceived to review the past accomplishments in order to identify research gaps and suggest ways and means to meet the challenge of sustainable productivity upgradation. Theoretical and applied aspects ofbreeding, genetics, cytogenetics, crop physiology, and biotechnology are covered. The emphasis is on the application of theoretical knowledge to the solution of problems that confront the Brassica breeders.
Book Synopsis Statistical Analysis of Regional Yield Trials: AMMI Analysis of Factorial Designs by : Hugh G. Gauch (Jr.)
Download or read book Statistical Analysis of Regional Yield Trials: AMMI Analysis of Factorial Designs written by Hugh G. Gauch (Jr.) and published by . This book was released on 1992-11-06 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basic statistical concepts. AMMI and related models. Estimation. Selection. Modeling. Efficient experiments.
Book Synopsis Ecological Genomics by : Christian R. Landry
Download or read book Ecological Genomics written by Christian R. Landry and published by Springer Science & Business Media. This book was released on 2013-11-25 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Researchers in the field of ecological genomics aim to determine how a genome or a population of genomes interacts with its environment across ecological and evolutionary timescales. Ecological genomics is trans-disciplinary by nature. Ecologists have turned to genomics to be able to elucidate the mechanistic bases of the biodiversity their research tries to understand. Genomicists have turned to ecology in order to better explain the functional cellular and molecular variation they observed in their model organisms. We provide an advanced-level book that covers this recent research and proposes future development for this field. A synthesis of the field of ecological genomics emerges from this volume. Ecological Genomics covers a wide array of organisms (microbes, plants and animals) in order to be able to identify central concepts that motivate and derive from recent investigations in different branches of the tree of life. Ecological Genomics covers 3 fields of research that have most benefited from the recent technological and conceptual developments in the field of ecological genomics: the study of life-history evolution and its impact of genome architectures; the study of the genomic bases of phenotypic plasticity and the study of the genomic bases of adaptation and speciation.
Book Synopsis Genetics and Exploitation of Heterosis in Crops by : J. G. Coors
Download or read book Genetics and Exploitation of Heterosis in Crops written by J. G. Coors and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore the momentous contributions of hybrid crop varieties with worldwide experts. Topics include an overview, quantitative genetics, genetic diversity, biochemistry and molecular biology, methodologies, commercial strategies, and examples from numerous crops.
Book Synopsis Specialty Corns by : Arnel R. Hallauer
Download or read book Specialty Corns written by Arnel R. Hallauer and published by CRC Press. This book was released on 2000-08-23 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Completely revised and updated, the Second Edition of Specialty Corns includes everything in the first edition and more. Considered the standard in this field, significant changes have been made to keep all the information current and bring the references up-to-date. Two new chapters have been added to keep up with the latest trends: Blue Corn and
Book Synopsis Gene Drives at Tipping Points by : Arnim von Gleich
Download or read book Gene Drives at Tipping Points written by Arnim von Gleich and published by Springer Nature. This book was released on 2020-01-01 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book reports on a pilot project aiming at collecting information on the socio-ecological risks that could arise in the event of an uncontrolled spread of genetically engineered organisms into the environment. The researchers will, for instance, be taking a closer look at genetically engineered oilseed rape, genetically engineered olive flies as well as plants and animals with so-called gene drives. The book mainly adresses researchers.
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.
Download or read book Agrindex written by and published by . This book was released on 1994 with total page 948 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis DNA Fingerprinting in Plants by : Kurt Weising
Download or read book DNA Fingerprinting in Plants written by Kurt Weising and published by CRC Press. This book was released on 2005-02-28 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Given the explosive development of new molecular marker techniques over the last decade, newcomers and experts alike in the field of DNA fingerprinting will find an easy-to-follow guide to the multitude of techniques available in DNA Fingerprinting in Plants: Principles, Methods, and Applications, Second Edition. Along with step-by-step annotated p
Book Synopsis Breeding Field Crops by : John M. Poehlman
Download or read book Breeding Field Crops written by John M. Poehlman and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 739 pages. Available in PDF, EPUB and Kindle. Book excerpt: While preparing the first edition of this textbook I attended an extension short course on writing agricultural publications. The message I remember was "select your audience and write to it. " There has never been any doubt about the audience for which this textbook was written, the introductory course in crop breeding. In addition, it has become a widely used reference for the graduate plant-breeding student and the practicing plant breeder. In its prepa ration, particular attention has been given to advances in plant-breeding theo ry and their utility in plant-breeding practice. The blend of the theoretical with the practical has set this book apart from other plant-breeding textbooks. The basic structure and the objectives of the earlier editions remain un changed. These objectives are (1) to review essential features of plant re production, Mendelian genetic principles, and related genetic developments applicable in plant-breeding practice; (2) to describe and evaluate established and new plant-breeding procedures and techniques, and (3) to discuss plant breeding objectives with emphasis on the importance of proper choice of objec tive for achieving success in variety development. Because plant-breeding activities are normally organized around specific crops, there are chapters describing breeding procedures and objectives for the major crop plants; the crops were chosen for their economic importance or diversity in breeding sys tems. These chapters provide a broad overview of the kinds of problems with which the breeder must cope.
Book Synopsis Plant Breeding in the Omics Era by : Rodomiro Ortiz Ríos
Download or read book Plant Breeding in the Omics Era written by Rodomiro Ortiz Ríos and published by Springer. This book was released on 2015-09-16 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of plant breeding has grown rapidly in the last decade with breakthrough research in genetics and genomics, inbred development, population improvement, hybrids, clones, self-pollinated crops, polyploidy, transgenic breeding and more. This book discusses the latest developments in all these areas but explores the next generation of needs and discoveries including omics beyond genomics, cultivar seeds and intellectual and property rights. This book is a leading-edge publication of the latest results and forecasts important areas of future needs and applications.
Book Synopsis Essentials of Plant Breeding by : Rex Bernardo
Download or read book Essentials of Plant Breeding written by Rex Bernardo and published by . This book was released on 2014 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Doubled Haploid Production in Crop Plants by : M. Maluszynski
Download or read book Doubled Haploid Production in Crop Plants written by M. Maluszynski and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: The production of doubled haploids has become a necessary tool in advanced plant breeding institutes and commercial companies for breeding many crop species. However, the development of new, more efficient and cheaper large scale production protocols has meant that doubled haploids are also recently being applied in less advanced breeding programmes. This Manual was prepared to stimulate the wider use of this technology for speeding and opening up new breeding possibilities for many crops including some woody tree species. Since the construction of genetic maps using molecular markers requires the development of segregating doubled haploid populations in numerous crop species, we hope that this Manual will also help molecular biologists in establishing such mapping populations. For many years, both the Food and Agriculture Organization of the United Nations (FAO) and the International Atomic Energy Agency (IAEA) have supported and coordinated research that focuses on development of more efficient doubled haploid production methods and their applications in breeding of new varieties and basic research through their Plant Breeding and Genetics Section of the Joint F AO/IAEA Division of Nuclear Techniques in Food and Agriculture. The first F AO/IAEA scientific network (Coordinated Research Programme - CRP) dealing with doubled haploids was initiated by the Plant Breeding and Genetics Section in 1986.
