Genome-wide association identifies several QTLs controlling cysteine and methionine content in soybean seed including some promising candidate genes

Abstract Soybean is an important source of protein, oil and carbohydrates, as well as other beneficial nutrients. A major function of proteins in nutrition is to supply adequate amounts of amino acids. Although they are essential for human nutrition, the sulfur-containing amino acids cysteine (Cys)...

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Autores principales: Sidiki Malle, Milad Eskandari, Malcolm Morrison, François Belzile
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Publicado: Nature Portfolio 2020
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spelling oai:doaj.org-article:951022e99d8e48ea835f61557e848eef2021-12-02T12:33:04ZGenome-wide association identifies several QTLs controlling cysteine and methionine content in soybean seed including some promising candidate genes10.1038/s41598-020-78907-w2045-2322https://doaj.org/article/951022e99d8e48ea835f61557e848eef2020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-78907-whttps://doaj.org/toc/2045-2322Abstract Soybean is an important source of protein, oil and carbohydrates, as well as other beneficial nutrients. A major function of proteins in nutrition is to supply adequate amounts of amino acids. Although they are essential for human nutrition, the sulfur-containing amino acids cysteine (Cys) and methionine (Met) are often limited and the genetic control of their content in soybean seeds is poorly characterized. This study aimed to characterize the phenotypic variation and identify quantitative trait loci (QTL) associated with Cys and Met content in a core set of 137 soybean lines, representative of the genetic diversity among Canadian short-season soybean, spanning maturity groups 000-II (MG000-II). Significant phenotypic differences were found among these lines for Cys, Met and Cys + Met content. Using both a mixed linear model and six multi-locus methods with a catalogue of 2.18 M SNPs, we report a total of nine QTLs and seventeen QTNs of which seven comprise promising candidate genes. This work allowed us to reproducibly detect multiple novel loci associated with sulfur-containing amino acid content. The markers and genes identified in this study may be useful for soybean genetic improvement aiming to increase Cys and Met content.Sidiki MalleMilad EskandariMalcolm MorrisonFrançois BelzileNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-14 (2020)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Sidiki Malle
Milad Eskandari
Malcolm Morrison
François Belzile
Genome-wide association identifies several QTLs controlling cysteine and methionine content in soybean seed including some promising candidate genes
description Abstract Soybean is an important source of protein, oil and carbohydrates, as well as other beneficial nutrients. A major function of proteins in nutrition is to supply adequate amounts of amino acids. Although they are essential for human nutrition, the sulfur-containing amino acids cysteine (Cys) and methionine (Met) are often limited and the genetic control of their content in soybean seeds is poorly characterized. This study aimed to characterize the phenotypic variation and identify quantitative trait loci (QTL) associated with Cys and Met content in a core set of 137 soybean lines, representative of the genetic diversity among Canadian short-season soybean, spanning maturity groups 000-II (MG000-II). Significant phenotypic differences were found among these lines for Cys, Met and Cys + Met content. Using both a mixed linear model and six multi-locus methods with a catalogue of 2.18 M SNPs, we report a total of nine QTLs and seventeen QTNs of which seven comprise promising candidate genes. This work allowed us to reproducibly detect multiple novel loci associated with sulfur-containing amino acid content. The markers and genes identified in this study may be useful for soybean genetic improvement aiming to increase Cys and Met content.
format article
author Sidiki Malle
Milad Eskandari
Malcolm Morrison
François Belzile
author_facet Sidiki Malle
Milad Eskandari
Malcolm Morrison
François Belzile
author_sort Sidiki Malle
title Genome-wide association identifies several QTLs controlling cysteine and methionine content in soybean seed including some promising candidate genes
title_short Genome-wide association identifies several QTLs controlling cysteine and methionine content in soybean seed including some promising candidate genes
title_full Genome-wide association identifies several QTLs controlling cysteine and methionine content in soybean seed including some promising candidate genes
title_fullStr Genome-wide association identifies several QTLs controlling cysteine and methionine content in soybean seed including some promising candidate genes
title_full_unstemmed Genome-wide association identifies several QTLs controlling cysteine and methionine content in soybean seed including some promising candidate genes
title_sort genome-wide association identifies several qtls controlling cysteine and methionine content in soybean seed including some promising candidate genes
publisher Nature Portfolio
publishDate 2020
url https://doaj.org/article/951022e99d8e48ea835f61557e848eef
work_keys_str_mv AT sidikimalle genomewideassociationidentifiesseveralqtlscontrollingcysteineandmethioninecontentinsoybeanseedincludingsomepromisingcandidategenes
AT miladeskandari genomewideassociationidentifiesseveralqtlscontrollingcysteineandmethioninecontentinsoybeanseedincludingsomepromisingcandidategenes
AT malcolmmorrison genomewideassociationidentifiesseveralqtlscontrollingcysteineandmethioninecontentinsoybeanseedincludingsomepromisingcandidategenes
AT francoisbelzile genomewideassociationidentifiesseveralqtlscontrollingcysteineandmethioninecontentinsoybeanseedincludingsomepromisingcandidategenes
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