Studies on Phenotypic Stability for Some Quantitative Traits in Bread Wheat (Triticum Aestivum L.). PDF Download
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Author: Virendra Singh Malik
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Virendra Singh Malik
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Category :
Languages : en
Pages :
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Author: Virender Dev Arya
Publisher:
ISBN:
Category :
Languages : en
Pages : 104
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Author: Shobhna Yadav
Publisher:
ISBN:
Category :
Languages : en
Pages : 155
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![Stability Analysis of Genotypes with Concern to Yield Performance and Quality Traits in Bread Wheat ( Triticum Aestivum L ) [ With CD Copy ] PDF](https://books.google.com/books/content/images/frontcover/ESamzwEACAAJ?fife=w80-h100)
Author: Ibrahim Hassani
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Delphine Fleury
Publisher:
ISBN: 9781493904464
Category : Plant breeding
Languages : en
Pages : 255
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Author: Mian Abdur Rehman Arif
Publisher:
ISBN:
Category :
Languages : en
Pages : 388
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This study was undertaken to map quantitative trait loci (QTLs) and marker trait associations (MTAs) controlling seed longevity and dormancy in wheat using one bi-parental and two association mapping populations. QTL analysis of bi-parental 'International Triticeae Mapping Initiative' population reproduced in two different seasons resulted in the identification of one major and nine minor QTLs for seed longevity. There was one major QTL for dormancy observed on chromosome 4AL. The location of this QTL does not match with any of the longevity QTLs. One set of 96 winter wheat accessions (advanced gemplasm collection) and one set of 183 accessions consisting of a mixture of spring and winter wheat (genebank collection) revealed 73 and 340 MTAs for seed longevity, respectively. Of the 340 MTAs, 134 MTAs were observed after long term cold storage but the others after experimental ageing in genebank collection. The associations were distributed over all the wheat chromosomes except 4D which was not covered with markers. Results obtained after long term cold storage and experimental ageing did match only to some extent in this study which could be due to different quality of seeds produced during different seasons. However, it also can be proposed that different mechanisms are involved during deterioration in cold storage over long periods and decaying during artificial ageing treatments. For dormancy, there were 68 and 118 MTAs identified in the advanced germplasm collection and genebank collection, respectively, in addition to one major QTL on chromosome 4A in the ITMI population. Similarly, pre-harvest sprouting revealed 32 and 193 MTAs in case of advanced germplasm collection and genebank accessions, respectively. Co-linearity was found among wheat, rice and barley for loci influencing dormancy and PHS.
Author: Prakhar Singla
Publisher:
ISBN:
Category :
Languages : en
Pages : 118
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Author: M. S. Khumkar
Publisher:
ISBN:
Category :
Languages : en
Pages : 108
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Author: Bruce Walsh
Publisher: Oxford University Press
ISBN: 0192566644
Category : Science
Languages : en
Pages : 1504
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Quantitative traits-be they morphological or physiological characters, aspects of behavior, or genome-level features such as the amount of RNA or protein expression for a specific gene-usually show considerable variation within and among populations. Quantitative genetics, also referred to as the genetics of complex traits, is the study of such characters and is based on mathematical models of evolution in which many genes influence the trait and in which non-genetic factors may also be important. Evolution and Selection of Quantitative Traits presents a holistic treatment of the subject, showing the interplay between theory and data with extensive discussions on statistical issues relating to the estimation of the biologically relevant parameters for these models. Quantitative genetics is viewed as the bridge between complex mathematical models of trait evolution and real-world data, and the authors have clearly framed their treatment as such. This is the second volume in a planned trilogy that summarizes the modern field of quantitative genetics, informed by empirical observations from wide-ranging fields (agriculture, evolution, ecology, and human biology) as well as population genetics, statistical theory, mathematical modeling, genetics, and genomics. Whilst volume 1 (1998) dealt with the genetics of such traits, the main focus of volume 2 is on their evolution, with a special emphasis on detecting selection (ranging from the use of genomic and historical data through to ecological field data) and examining its consequences.
Author: N. K. Sangh
Publisher:
ISBN:
Category :
Languages : en
Pages : 160
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