Qtl Analysis Of Wheat Grain Yield Components And Agronomic Traits Using Advanced Genotyping Platforms

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QTL Analysis of Wheat Grain Yield Components and Agronomic Traits Using Advanced Genotyping Platforms

Author : Kyle D. Isham
Publisher :
ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.6/5 (624 download)

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Book Synopsis QTL Analysis of Wheat Grain Yield Components and Agronomic Traits Using Advanced Genotyping Platforms by : Kyle D. Isham

Download or read book QTL Analysis of Wheat Grain Yield Components and Agronomic Traits Using Advanced Genotyping Platforms written by Kyle D. Isham and published by . This book was released on 2019 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The genetic manipulation of major yield components and agronomic traits is an important approach to increase wheat grain yield. Phenotyping of these traits is cost-effective but is time-consuming and the output is also confounded by environmental conditions. In the present study, we aimed to identify quantitative trait loci (QTL) and tightly linked, friendly used molecular markers to select for productive tiller number (PTN), fertile spikelet number per spike (fSNS), thousand kernel weight (TKW), grain yield (GY), height (HT), and heading date (HD). These traits were assessed in eight field trials over three years in a double haploid (DH) population that were derived from two adapted high yielding spring wheat cultivars 'UI Platinum' and 'LCS Star'. The DH population of 181 lines was genotyped using the 90K iSelect SNP platform and markers for known genes (Ppd, Vrn, Rht, and FT) that affect plant adaptation. The genotypic data was used in linkage analysis and QTL analysis for yield components and agronomic data using JMP Genomics Software (V9.0). To consider spatial variation, the best linear unbiased prediction (BLUP) was calculated for each trait across all trials. QTL analyses were conducted separately for each trait in individual environments and in trait BLUP across all environments. A total of 48 linkage groups were constructed with a total length of 3892.81 cM and a marker density of 0.33 marker/cM. A total of nineteen QTL were detected, including five for fSNS on chromosomes 5D, 6A, 7B (two QTL), and 7D; two for PTN on chromosomes 4A and 6A; three QTL for TKW on chromosomes 4A, 6A, and 7D; one QTL for GY on chromosome 7D; four QTL for HD on chromosomes 4B, 6A, 7B, and 7D; and four QTL for HT on chromosomes 4A (two QTL), 5D, and 7D. The two parents have complementary and additive QTL effects in all traits evaluated, providing opportunities to improve each trait through pyramiding. However, four QTL, QPTN.uia2-6A, QfSNS.uia2-6A, QTKW.uia2-6A, and QHD.uia2-6A were clustered on chromosome 6A; five other QTL, QTKW.uia2-7D, QfSNS.uia2-7D, QHT.uia2-7D, QGY.uia2-7D, and QHD.uia2-7D were clustered in a small region on chromosome 7DS. The two QTL clusters each control traits that were negatively correlated, suggesting that the trade-off effects pose a challenge and further dissecting of the two clusters is necessary in order to use them in yield improvement. Using the exosome capture data, linkage maps of interest were saturated with additional KASP markers, which helps to dissect the identified QTL clusters. A few of QTL in the two cluster regions were further validated in an elite spring wheat panel, confirming the realty and effectiveness of the identified QTL. KASP markers developed in the present study may useful to pyramid multiple yield components to enhance yield improvement in wheat.

Development of High-density Linkage Map and QTL Mapping for Agronomic Traits in Bread Wheat Evaluated Across Multiple Rainfed Environments

Download Development of High-density Linkage Map and QTL Mapping for Agronomic Traits in Bread Wheat Evaluated Across Multiple Rainfed Environments PDF Online Free

Author : Waseem Hussain
Publisher :
ISBN 13 : 9781369717822
Total Pages : 144 pages
Book Rating : 4.7/5 (178 download)

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Book Synopsis Development of High-density Linkage Map and QTL Mapping for Agronomic Traits in Bread Wheat Evaluated Across Multiple Rainfed Environments by : Waseem Hussain

Download or read book Development of High-density Linkage Map and QTL Mapping for Agronomic Traits in Bread Wheat Evaluated Across Multiple Rainfed Environments written by Waseem Hussain and published by . This book was released on 2017 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The SNPs generated through genotyping-by-sequencing (GBS) can be used to develop high-density linkage maps for precision QTL mapping. The present study was undertaken to (1) determine the genetic variability in recombinant inbred line (RIL) population derived from the cross between 'Harry' (drought tolerant) and 'Wesley' (drought susceptible) winter wheat (Triticum aestivum L.), (2) develop high-density linkage map based on GBS derived SNPs, (3) validate the quality of linkage map, (4) and perform the genome-wide QTL mapping of agronomic traits evaluated across multiple rainfed environments. High levels of variation and transgressive segregants were observed among RILs. A high-density linkage map was constructed containing 3,641 markers distributed on 21 chromosomes and spanned 1,959 cM. The map showed strong co-linearity with POPSEQ-based on the high-density linkage map. The accuracy of the linkage map for QTL mapping was confirmed by co-localizing the genomic regions for two highly heritable traits: chaff color and leaf cuticular wax. Genome-wide mapping identified 89 additive effect QTL for all the traits across all environments. Major effect and stable QTL were identified for a flowering date, flag leaf length, flag leaf width, grain yield and plant height. Co-located QTLs were evident for all traits, and one region on chromosome 6B harbored QTL for grain yield and yield component traits. QTL expression was highly variable across the environments, and strong QTL x environment interaction was observed for grain yield, flag leaf area and less so for plant height and thousand kernel weight. Digenetic interactions were notable but highly variable across the environments and explained less phenotypic variance than main effect QTLs. The major QTLs identified may provide a foundation for future studies to fine map and identify key genes underlying these QTLs and to introgress these QTLs to fine tune plant height, adaptation and grain yield under rainfed environments in Great Plains.

Genetic Analyses of Wheat and Molecular Marker-Assisted Breeding, Volume 2

Author : Jichun Tian
Publisher : Springer
ISBN 13 : 9401774471
Total Pages : 338 pages
Book Rating : 4.4/5 (17 download)

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Book Synopsis Genetic Analyses of Wheat and Molecular Marker-Assisted Breeding, Volume 2 by : Jichun Tian

Download or read book Genetic Analyses of Wheat and Molecular Marker-Assisted Breeding, Volume 2 written by Jichun Tian and published by Springer. This book was released on 2015-11-25 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: While focusing on various interactions between trait genes/QTL and dynamic expressions of conditional QTL genes, this book also discusses aspects of molecular marker-assisted breeding, and applications of molecular markers associated with yield, quality, physiology and disease resistance in wheat. It covers QTL studies in wheat breeding and presents the available information on wheat MAS breeding. This volume provides a wealth of novel information, a wide range of applications and deep insights into crop genetics and molecular breeding, which is valuable not only for plant breeders but also for academic faculties, senior researchers and advanced graduate students who are involved in plant breeding and genetics. Dr. Jichun Tian is a professor at the Department of Agronomy, Shandong Agricultural University, Tai’an, China.

Quantitative Trait Locus Mapping of Agronomic, Physiological, and End-use Quality Traits of Common Wheat (T. Aestivum)

Author : Junli Zhang (Doctoral student)
Publisher :
ISBN 13 :
Total Pages : 416 pages
Book Rating : 4.:/5 (865 download)

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Book Synopsis Quantitative Trait Locus Mapping of Agronomic, Physiological, and End-use Quality Traits of Common Wheat (T. Aestivum) by : Junli Zhang (Doctoral student)

Download or read book Quantitative Trait Locus Mapping of Agronomic, Physiological, and End-use Quality Traits of Common Wheat (T. Aestivum) written by Junli Zhang (Doctoral student) and published by . This book was released on 2013 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grain yield (GY) is always the first priority in wheat (Triticum aestivum L.) breeding; however, progress in improvement of this trait is hampered due to quantitative inheritance, low heritability, and confounding environmental effects. Thanks to the advancements of high throughput genotyping and phenotyping technologies, both molecular markers and physiological traits are now promising indirect selection tools in breeding for this trait and other traits. Besides grain yield, grain quality is another important respect in wheat breeding, and one of the quality traits is the Hagberg falling number (FN), which is commonly used in grain grading. The FN test has a genetic component but is also strongly influenced by environmental conditions during the reproductive growth stage, including excessive moisture, extreme temperature, and biotic and abiotic stresses. The objective of the current studies was to identify potential genomic regions and molecular markers that influence GY, three important physiological traits (canopy temperature, CT; chlorophyll content index, CCI; flag leaf senescence, FLS) that could impact grain yield during heat and moisture stress, and FN by QTL mapping approaches. A winter wheat population of 159 recombinant inbred lines (RILs) from the cross of ID0444 and Rio Blanco were used to map QTL for GY, CT, CCI and FLS, and a total of 110 hard white spring (HWS) wheat accessions from the National Small Grain Collection (NSGC) were used in genome-wide association mapping of FN. GY was evaluated under three field conditions, rainfed, terminal drought (water stress applied after anthesis), and fully irrigated, with a total of six location-year environments. QTL mapping was conducted for main effect (G) of GY, and the genotype x environment interaction (GEI) effect of GY. A total of 17 QTL were associated with G and 13 QTL associated with GEI, and nine of 13 QTL for GEI were mapped in the flanking chromosomal regions of QTL for GEI. One QTL, Q.Gy.ui-1B.2 found on chromosome 1B, was associated with GY in all six individual environments. Significant QTL x environment interaction (QEI), QTL x QTL interaction (QQI) and QTL x QTL x environment (QQEI) were also identified. The present study showed that the QEI and QQI were as important as the QTL main effect of GY, and they should be taken into consideration in future QTL studies and marker-assisted selection (MAS). The three physiological traits, CT, CCI and FLS, which have been reported to be closely related to grain yield of wheat in diverse environments, were evaluated in two terminal drought and one rainfed environments in southeastern Idaho. Correlation results showed that CT and FLS were highly correlated with GY but the relationship between CCI and GY varied among the three environments. FLS was closely related to heading date (HD) and its effect on grain yield might be determined by HD in the RIL population used in the study. Stepwise multiple regression showed that CT and FLS could predict grain yield effectively and could be used as indirect selection criteria in wheat breeding. A total of 27 main effect QTL (M-QTL) were identified on 12 chromosomes, explaining 5 to 14% of phenotypic variation. Seven epistatic QTL (E-QTL) were identified for FLS and CCI and these could explain 9-25% of the phenotypic variation, but most of them did not have a main effect. Most of the QTL were reported for the first time. FN tests were conducted using grain flour samples from the 110 HWS wheat accessions grown in five environments. A total of 1,740 SNP markers were used to detect SNP-FN associations using both general linear model (GLM) and mixed linear model (MLM). A total of 13 QTL located in nine chromosomal regions were identified in both GLM and MLM approaches. These new QTL have the potential to increase the selection efficiency for wheat breeding, and can be further explored to identify candidate genes.

Genetic Analyses of Wheat and Molecular Marker-Assisted Breeding, Volume 1

Author : Jichun Tian
Publisher : Springer
ISBN 13 : 9401773904
Total Pages : 550 pages
Book Rating : 4.4/5 (17 download)

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Book Synopsis Genetic Analyses of Wheat and Molecular Marker-Assisted Breeding, Volume 1 by : Jichun Tian

Download or read book Genetic Analyses of Wheat and Molecular Marker-Assisted Breeding, Volume 1 written by Jichun Tian and published by Springer. This book was released on 2015-10-22 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book mainly describes the QTL mappings and efficacy analyses that are associated with wheat productivity, quality, physiology and various stress resistances and provides summaries of results from studies conducted both at home and abroad. It presents comparable data and analyses, helping readers to arrive at a more comprehensive understanding of the latest development in this field. The book provides a wealth of novel information, broad range of applications and in-depth findings on crop genetics and molecular breeding, making it valuable not only for plant breeders but also for academic faculties, senior researchers and advanced graduate students who are involved in plant breeding and genetics. Dr. Jichun Tian is a professor at the Department of Agronomy, Shandong Agricultural University, Tai’an, China.

Physiological, Molecular, and Genetic Perspectives of Wheat Improvement

Author : Shabir H Wani
Publisher : Springer Nature
ISBN 13 : 3030595773
Total Pages : 296 pages
Book Rating : 4.0/5 (35 download)

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Book Synopsis Physiological, Molecular, and Genetic Perspectives of Wheat Improvement by : Shabir H Wani

Download or read book Physiological, Molecular, and Genetic Perspectives of Wheat Improvement written by Shabir H Wani and published by Springer Nature. This book was released on 2020-12-17 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: World population is growing at an alarming rate and may exceed 9.7 billion by 2050, whereas agricultural productivity has been negatively affected due to yield limiting factors such as biotic and abiotic stresses as a result of global climate change. Wheat is a staple crop for ~20% of the world population and its yield needs be augmented correspondingly in order to satisfy the demands of our increasing world population. “Green revolution”, the introduction of semi-dwarf, high yielding wheat varieties along with improved agronomic management practices, gave rise to a substantial increase in wheat production and self-sufficiency in developing countries that include Mexico, India and other south Asian countries. Since the late 1980’s, however, wheat yield is at a standoff with little fluctuation. The current trend is thus insufficient to meet the demands of an increasing world population. Therefore, while conventional breeding has had a great impact on wheat yield, with climate change becoming a reality, newer molecular breeding and management tools are needed to meet the goal of improving wheat yield for the future. With the advance in our understanding of the wheat genome and more importantly, the role of environmental interactions on productivity, the idea of genomic selection has been proposed to select for multi-genic quantitative traits early in the breeding cycle. Accordingly genomic selection may remodel wheat breeding with gain that is predicted to be 3 to 5 times that of crossbreeding. Phenomics (high-throughput phenotyping) is another fairly recent advancement using contemporary sensors for wheat germplasm screening and as a selection tool. Lastly, CRISPR/Cas9 ribonucleoprotein mediated genome editing technology has been successfully utilized for efficient and specific genome editing of hexaploid bread wheat. In summary, there has been exciting progresses in the development of non-GM wheat plants resistant to biotic and abiotic stress and/or wheat with improved nutritional quality. We believe it is important to highlight these novel research accomplishments for a broader audience, with the hope that our readers will ultimately adopt these powerful technologies for crops improvement in order to meet the demands of an expanding world population.

Physiological Breeding

Author : Alistair Pask
Publisher : CIMMYT
ISBN 13 : 9706481826
Total Pages : 140 pages
Book Rating : 4.7/5 (64 download)

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Book Synopsis Physiological Breeding by : Alistair Pask

Download or read book Physiological Breeding written by Alistair Pask and published by CIMMYT. This book was released on 2012 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Quantitative Trait Loci (QTL) Analysis of Yield Components and Heat Tolerance in Wheat (Triticum Aestivum)

Author : Jung Hwa Do
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (61 download)

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Book Synopsis Quantitative Trait Loci (QTL) Analysis of Yield Components and Heat Tolerance in Wheat (Triticum Aestivum) by : Jung Hwa Do

Download or read book Quantitative Trait Loci (QTL) Analysis of Yield Components and Heat Tolerance in Wheat (Triticum Aestivum) written by Jung Hwa Do and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was conducted to identify and map QTLs for yield components and heat tolerance of wheat in response to two kinds of heat treatment (short term-and long term-heat treatment) during seed formation in a set of 62 RILs derived from a cross of '7C' (heat resistant variety) and 'Seri M82' (heat susceptible variety) in environmentally controlled growth rooms and field. Phenotypic variations of yield components (kernel number, kernel weight, spike number and grain filling duration) were evaluated as indicators of heat tolerance / susceptibility. Most of the phenotypic variations of yield components exhibited a normally distributed pattern in response to heat stress treatments. This suggests that the yield component responses to high temperature stress are likely quantitatively inherited. A transgressive segregation pattern compared to the two parents was observed in several yield traits. This suggests that genetic variation from optimal recombination from the two parents have occurred in the progeny population. The Pearson correlation coefficients revealed significant correlations between yield components. This suggests the probability of co-segregation of genes controlling each yield components. The ANOVA also revealed a significant genotype x environment effect on individual yield components in response to reproductive stage high temperature stress. The heritability of the individual yield components was low (0.42 to 25%, 0.1~ 2% for heat tolerance). One hundred two polymorphic SSRs markers among 323 SSRs markers tested were used to construct a linkage coverage and average interval distance of 1860.2 cM and 18.2 cM/marker, respectively. Eighty-one QTLs for yield components and 68 QTLs for heat tolerance were detected with high LOD values (2.50~8.35 for yield components, 2.51~ 9.37 for heat tolerance) and that explained significant phenotypic variations (7~40% for individual QTL for yield components, 2~40 % for individual heat tolerance QTLs) from seven individual environments and the four individual heat stress environments, respectively. Specifically the regions between wmc48 and wmc89, and between wmc622 and wmc332 on the chromosome 4A and 6A, respectively possessed QTLs for both yield components and heat tolerance from various environments.

Gene Transfer to Plants

Author : Ingo Potrykus
Publisher : Springer Science & Business Media
ISBN 13 : 3642792472
Total Pages : 370 pages
Book Rating : 4.6/5 (427 download)

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Book Synopsis Gene Transfer to Plants by : Ingo Potrykus

Download or read book Gene Transfer to Plants written by Ingo Potrykus and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Association Mapping and Genomic Selection for Yield and Agronomic Traits in Soft Winter Wheat

Author : Dennis Nicuh Bulusan Lozada
Publisher :
ISBN 13 :
Total Pages : 344 pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis Association Mapping and Genomic Selection for Yield and Agronomic Traits in Soft Winter Wheat by : Dennis Nicuh Bulusan Lozada

Download or read book Association Mapping and Genomic Selection for Yield and Agronomic Traits in Soft Winter Wheat written by Dennis Nicuh Bulusan Lozada and published by . This book was released on 2018 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tools such as genome-wide association study (GWAS) and genomic selection (GS) have expedited the development of crops with improved genetic potential. While GWAS aims to identify significant markers associated with a trait of interest, the goal of GS is to utilize all marker effects to predict the performance of new breeding lines prior to testing. A GWAS for grain yield (GY), yield components, and agronomic traits was conducted using a diverse panel of 239 soft winter wheat (SWW) lines evaluated in eight site-years in Arkansas and Oklahoma. Broad sense heritability of GY (H2=0.48) was moderate compared to other traits including plant height (H2=0.81) and kernel weight (H2=0.77). Markers associated with multiple traits on chromosomes 1A, 2D, 3B, and 4B serve as potential targets for marker assisted breeding to select for GY improvement. Validation of GY-related loci using spring wheat from the International Maize and Wheat Improvement Center (CIMMYT) in Mexico confirmed the effects of three loci in chromosomes 3A, 4B, and 6B. Lines possessing the favorable allele at all three loci (A-C-G allele combination) had the highest mean GY of possible haplotypes. The same population of 239 lines was used in a GS study as a training population (TP) to determine factors that affect the predictability of GY. The TP size had the greatest effect on predictive ability across the measured traits. Adding covariates in the GS model was more advantageous in increasing prediction accuracies under single population cross validations than in forward predictions. Forward validation of the prediction models on two new populations resulted in a maximum accuracy of 0.43 for GY. Genomic selection was "superior" to marker-assisted selection in terms of response to selection and combining phenotypic selection with GS resulted in the highest response. Results from this study can be used to accelerate the process of GY improvement and increase genetic gains in wheat breeding programs.

QTL Mapping in Crop Improvement

Author : Shabir Hussain Wani
Publisher : Elsevier
ISBN 13 : 0323852432
Total Pages : 414 pages
Book Rating : 4.3/5 (238 download)

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Book Synopsis QTL Mapping in Crop Improvement by : Shabir Hussain Wani

Download or read book QTL Mapping in Crop Improvement written by Shabir Hussain Wani and published by Elsevier. This book was released on 2022-11-15 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: QTL Mapping in Crop Improvement: Present Progress and Future Perspectives presents advancements in QTL breeding for biotic and abiotic stresses and nutritional improvement in a range of crop plants. The book presents a roadmap for future breeding for resilience to various stresses and improvement in nutritional quality. Crops such as rice, wheat, maize, soybeans, common bean, and pigeon pea are the major staple crops consumed globally, hence fulfilling the nutritional requirements of global populations, particularly in the under-developed world, is extremely important. Sections cover the challenges facing maximized production of these crops, including diseases, insect damage, drought, heat, salinity and mineral toxicity. Covering globally important crops including maize, wheat, rice, barley, soybean, common bean and pigeon pea, this book will be an important reference for those working in agriculture and crop improvement. Uses the latest molecular markers to identify QTLs/genes responsible for biotic and abiotic stress tolerance in plants Includes multiple core crops for efficient comparison and translational learning Provides a ready reference for improving quality traits through the use of the latest technologies

Genome-wide Association Studies of Drought Resistance and Yield Potential in Wheat (Triticum Aestivum L.) Using Agronomic and Remotely Sensed Traits

Download Genome-wide Association Studies of Drought Resistance and Yield Potential in Wheat (Triticum Aestivum L.) Using Agronomic and Remotely Sensed Traits PDF Online Free

Author : Shiferaw Abate Gizaw
Publisher :
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.:/5 (956 download)

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Book Synopsis Genome-wide Association Studies of Drought Resistance and Yield Potential in Wheat (Triticum Aestivum L.) Using Agronomic and Remotely Sensed Traits by : Shiferaw Abate Gizaw

Download or read book Genome-wide Association Studies of Drought Resistance and Yield Potential in Wheat (Triticum Aestivum L.) Using Agronomic and Remotely Sensed Traits written by Shiferaw Abate Gizaw and published by . This book was released on 2015 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging phenotyping methods and increasingly abundant genotyping platforms have become valuable tools for the discovery and introgression of yield-positive and stress-adaptive genes into modern wheat (Triticum aestivum L.). The main goal of this research was to identify genomic regions that contribute to yield potential and drought tolerance in wheat using agronomic and remotely sensed phenotyping approaches. Phenotypic interrelations, genetic variability of yield, yield components, phenology, and spectral reflectance indices (SRIs) were evaluated in a Pacific Northwest (PNW) winter wheat diversity panel (n = 402). The SRIs showed moderate to high phenotypic correlations with grain yield (|r| = 0.27 -- 0.84, p

Stripe Rust

Author : Xianming Chen
Publisher : Springer
ISBN 13 : 9402411119
Total Pages : 723 pages
Book Rating : 4.4/5 (24 download)

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Book Synopsis Stripe Rust by : Xianming Chen

Download or read book Stripe Rust written by Xianming Chen and published by Springer. This book was released on 2017-07-11 with total page 723 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprehensively introduces stripe rust disease, its development and its integral control. Covering the biology, genetics, genome, and functional genomics of the pathogen, it also discusses host and non-host resistance, their interactions and the epidemiology of the disease. It is intended for scientists, postgraduates and undergraduate studying stripe rust, plant pathology, crop breeding, crop protection and agricultural science, but is also a valuable reference book for consultants and administrators in agricultural businesses and education.

Oil Palm Breeding

Author : Aik Chin Soh
Publisher : CRC Press
ISBN 13 : 1351646044
Total Pages : 476 pages
Book Rating : 4.3/5 (516 download)

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Book Synopsis Oil Palm Breeding by : Aik Chin Soh

Download or read book Oil Palm Breeding written by Aik Chin Soh and published by CRC Press. This book was released on 2017-08-14 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: The oil palm is a remarkable crop, producing around 40% of the world’s vegetable oil from around 6% of the land devoted to oil crops. Conventional breeding has clearly been the major focus of genetic improvement in this crop. A mix of improved agronomy and management, coupled with breeding selection have quadrupled the oil yield of the crop since breeding began in earnest in the 1920s. However, as for all perennial crops with long breeding cycles, oil palm faces immense challenges in the coming years with increased pressure from population growth, climate change and the need to develop environmentally sustainable oil palm plantations. In Oil Palm: Breeding, Genetics and Genomics, world leading organizations and individuals who have been at the forefront of developments in this crop, provide their insights and experiences of oil palm research, while examining the different challenges that face the future of the oil palm. The editors have all been involved in research and breeding of oil palm for many years and use their knowledge of the crop and their disciplinary expertise to provide context and to introduce the different research topics covered.

The Barley Genome

Author : Nils Stein
Publisher : Springer
ISBN 13 : 3319925288
Total Pages : 400 pages
Book Rating : 4.3/5 (199 download)

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Book Synopsis The Barley Genome by : Nils Stein

Download or read book The Barley Genome written by Nils Stein and published by Springer. This book was released on 2018-08-18 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an overview of the state-of-the-art in barley genome analysis, covering all aspects of sequencing the genome and translating this important information into new knowledge in basic and applied crop plant biology and new tools for research and crop improvement. Unlimited access to a high-quality reference sequence is removing one of the major constraints in basic and applied research. This book summarizes the advanced knowledge of the composition of the barley genome, its genes and the much larger non-coding part of the genome, and how this information facilitates studying the specific characteristics of barley. One of the oldest domesticated crops, barley is the small grain cereal species that is best adapted to the highest altitudes and latitudes, and it exhibits the greatest tolerance to most abiotic stresses. With comprehensive access to the genome sequence, barley’s importance as a genetic model in comparative studies on crop species like wheat, rye, oats and even rice is likely to increase.

Quantitative Trait Loci Mapping of Rust Resistance and Agronomic Traits in the Doubled Haploid Spring Wheat Population 'HYAYT12-10' × 'GP146'

Download Quantitative Trait Loci Mapping of Rust Resistance and Agronomic Traits in the Doubled Haploid Spring Wheat Population 'HYAYT12-10' × 'GP146' PDF Online Free

Author : Izabela L. Ciechanowska
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (133 download)

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Book Synopsis Quantitative Trait Loci Mapping of Rust Resistance and Agronomic Traits in the Doubled Haploid Spring Wheat Population 'HYAYT12-10' × 'GP146' by : Izabela L. Ciechanowska

Download or read book Quantitative Trait Loci Mapping of Rust Resistance and Agronomic Traits in the Doubled Haploid Spring Wheat Population 'HYAYT12-10' × 'GP146' written by Izabela L. Ciechanowska and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marker-assisted selection requires the identification of molecular markers associated with major genes and quantitative trait loci (QTL) using linkage analysis. In this study, we used 167 doubled haploid (DH) lines derived from two unregistered spring wheat (Triticum aestivum L.) parental lines that belong to the Canada Western Special Purpose (CWSP) class to map QTLs associated with five traits using inclusive composite interval mapping (ICIM). Using ICIM, least square means phenotype data across 3-4 environments, and a genetic map of 2,676 SNPs out of the wheat 90K SNP array, we identified ten QTLs associated with maturity (4A and 5B), plant lodging (4B, 5A, 5D, and 7D), grain yield (2D), leaf rust (4A) and stem rust (1A and 2B). Each QTL individually accounted for 6.0-22.3% of the phenotypic variance and together accounted for 8.6-38.2% of each trait. QTLs identified for rusts using ICIM had a minor effect (6.0-9.0%) or a major effect (22.3%). Our major effect QTL at 22.3% was discovered on chromosome 2B and contributed to stem rust response. Its physical location has been associated with disease response in previous studies. Results from this study provide additional valuable information to wheat researchers, in particular that the area on chromosome 2B should be considered for future analyses.

Advances in Wheat Genetics: From Genome to Field

Author : Yasunari Ogihara
Publisher : Springer
ISBN 13 : 4431556753
Total Pages : 421 pages
Book Rating : 4.4/5 (315 download)

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Book Synopsis Advances in Wheat Genetics: From Genome to Field by : Yasunari Ogihara

Download or read book Advances in Wheat Genetics: From Genome to Field written by Yasunari Ogihara and published by Springer. This book was released on 2015-09-15 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings is a collection of 46 selected papers that were presented at the 12th International Wheat Genetics Symposium (IWGS). Since the launch of the wheat genome sequencing project in 2005, the arrival of draft genome sequences has marked a new era in wheat genetics and genomics, catalyzing rapid advancement in the field. This book provides a comprehensive review of the forefront of wheat research, across various important topics such as germplasm and genetic diversity, cytogenetics and allopolyploid evolution, genome sequencing, structural and functional genomics, gene function and molecular biology, biotic stress, abiotic stress, grain quality, and classical and molecular breeding. Following an introduction, 9 parts of the book are dedicated to each of these topics. A final, 11th part entitled “Toward Sustainable Wheat Production” contains 7 excellent papers that were presented in the 12th IWGS Special Session supported by the OECD. With rapid population growth and radical climate changes, the world faces a global food crisis and is in need of another Green Revolution to boost yields of wheat and other widely grown staple crops. Although this book focuses on wheat, many of the newly developed techniques and results presented here can be applied to other plant species with large and complex genomes. As such, this volume is highly recommended for all students and researchers in wheat sciences and related plant sciences and for those who are interested in stable food production and food security.