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Major QTL for Seven Yield-Related Traits in Common Wheat (Triticum aestivum L.)

Flag leaves, plant height (PH), and spike-related traits are key determinants contributing to yield potential in wheat. In this study, we developed a recombinant inbred line (RIL) population with 94 lines derived from the cross between ‘AS985472’ and ‘Sumai 3.’ A genetic map spanned 3553.69 cM in le...

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Autores principales: Jin, Jingjing, Liu, Dan, Qi, Yongzhi, Ma, Jun, Zhen, Wenchao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7485215/
https://www.ncbi.nlm.nih.gov/pubmed/33005181
http://dx.doi.org/10.3389/fgene.2020.01012
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author Jin, Jingjing
Liu, Dan
Qi, Yongzhi
Ma, Jun
Zhen, Wenchao
author_facet Jin, Jingjing
Liu, Dan
Qi, Yongzhi
Ma, Jun
Zhen, Wenchao
author_sort Jin, Jingjing
collection PubMed
description Flag leaves, plant height (PH), and spike-related traits are key determinants contributing to yield potential in wheat. In this study, we developed a recombinant inbred line (RIL) population with 94 lines derived from the cross between ‘AS985472’ and ‘Sumai 3.’ A genetic map spanned 3553.69 cM in length were constructed using 1978 DArT markers. Severn traits including flag leaf width (FLW), flag leaf length (FLL), PH, anthesis date (AD), spike length (SL), spikelet number spike (SNS), and spike density (SD) were evaluated against this RIL population under three different environments. Combined phenotypic data and genetic map, we identified quantitative trait loci (QTL) for each trait. A total of four major and stably expressed QTLs for FLW, PH, and SD were detected on chromosomes 2D and 4B. Of them, the major QTLs individually explained 10.10 – 30.68% of the phenotypic variation. QTLs with pleiotropic effects were identified on chromosomes 4A and 6D as well. Furthermore, the genetic relationships between seven yield-related traits were detected and discussed. A few genes related to leaf growth and development at the interval of a major locus for FLW on chromosome 2D were predicated. Overall, the present study provided useful information for understanding the genetic basis of yield-related traits and will be useful for marker-assisted selection in wheat breeding.
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spelling pubmed-74852152020-09-30 Major QTL for Seven Yield-Related Traits in Common Wheat (Triticum aestivum L.) Jin, Jingjing Liu, Dan Qi, Yongzhi Ma, Jun Zhen, Wenchao Front Genet Genetics Flag leaves, plant height (PH), and spike-related traits are key determinants contributing to yield potential in wheat. In this study, we developed a recombinant inbred line (RIL) population with 94 lines derived from the cross between ‘AS985472’ and ‘Sumai 3.’ A genetic map spanned 3553.69 cM in length were constructed using 1978 DArT markers. Severn traits including flag leaf width (FLW), flag leaf length (FLL), PH, anthesis date (AD), spike length (SL), spikelet number spike (SNS), and spike density (SD) were evaluated against this RIL population under three different environments. Combined phenotypic data and genetic map, we identified quantitative trait loci (QTL) for each trait. A total of four major and stably expressed QTLs for FLW, PH, and SD were detected on chromosomes 2D and 4B. Of them, the major QTLs individually explained 10.10 – 30.68% of the phenotypic variation. QTLs with pleiotropic effects were identified on chromosomes 4A and 6D as well. Furthermore, the genetic relationships between seven yield-related traits were detected and discussed. A few genes related to leaf growth and development at the interval of a major locus for FLW on chromosome 2D were predicated. Overall, the present study provided useful information for understanding the genetic basis of yield-related traits and will be useful for marker-assisted selection in wheat breeding. Frontiers Media S.A. 2020-08-28 /pmc/articles/PMC7485215/ /pubmed/33005181 http://dx.doi.org/10.3389/fgene.2020.01012 Text en Copyright © 2020 Jin, Liu, Qi, Ma and Zhen. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Genetics
Jin, Jingjing
Liu, Dan
Qi, Yongzhi
Ma, Jun
Zhen, Wenchao
Major QTL for Seven Yield-Related Traits in Common Wheat (Triticum aestivum L.)
title Major QTL for Seven Yield-Related Traits in Common Wheat (Triticum aestivum L.)
title_full Major QTL for Seven Yield-Related Traits in Common Wheat (Triticum aestivum L.)
title_fullStr Major QTL for Seven Yield-Related Traits in Common Wheat (Triticum aestivum L.)
title_full_unstemmed Major QTL for Seven Yield-Related Traits in Common Wheat (Triticum aestivum L.)
title_short Major QTL for Seven Yield-Related Traits in Common Wheat (Triticum aestivum L.)
title_sort major qtl for seven yield-related traits in common wheat (triticum aestivum l.)
topic Genetics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7485215/
https://www.ncbi.nlm.nih.gov/pubmed/33005181
http://dx.doi.org/10.3389/fgene.2020.01012
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