QTL mapping of major fatty acids and identification of candidate genes in cottonseed in an introgression line population from Gossypium hirsutum x Gossypium barbadense

被引：0

作者：

Feng, Pan ^{[1
,2
,4
]}

Jia, Bing ^{[2
]}

Song, Jikun ^{[2
]}

Mao, Haoming ^{[2
]}

Ma, Jianjiang ^{[2
]}

Pei, Wenfeng ^{[2
]}

Zhang, Bingbing ^{[2
]}

Wang, Li ^{[2
]}

Dang, Yuanyue ^{[2
]}

Hu, Shiyin ^{[2
]}

Wang, Wenkui ^{[2
]}

Zhang, Jinfa ^{[3
]}

Wu, Man ^{[1
,2
]}

Yu, Jiwen ^{[1
,2
,4
]}

机构：

[1] Zhengzhou Univ, Sch Agr Sci, State Key Lab Cotton Biobreeding & lntegrated Util, Zhengzhou Res Base, Zhengzhou 450001, Peoples R China

[2] Chinese Acad Agr Sci, Inst Cotton Res, State Key Lab Cotton Biobreeding & Integrated Util, Anyang 455000, Peoples R China

[3] New Mexico State Univ, Dept Plant & Environm Sci, Las Cruces, NM 88003 USA

[4] Xinjiang Agr Univ, Coll Agr, Engn Res Ctr Cotton, Minist Educ, Urumqi 830052, Peoples R China

来源：

INDUSTRIAL CROPS AND PRODUCTS | 2024年 / 222卷

基金：

中国国家自然科学基金;

关键词：

Gossypium hirsutum; Gossypium barbadense; Backcross inbred lines; Fatty acid; Quantitative trait locus; Candidate genes; OIL CONTENT;

D O I：

10.1016/j.indcrop.2024.119391

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Cottonseed as a by-product of cotton production is an important source of oil and proteins. In this study, the genetic basis of cottonseed fatty acid composition traits was studied through quantitative trait locus (QTL) mapping in an interspecific backcross inbred line (BIL) population of 250 lines grown. Based on 7709 single nucleotide polymorphic (SNP) markers, 117 QTLs were identified for the contents of all major fatty acids. Nine stable QTLs were detected in at least three environments, within which six genes were identified as candidate genes. Introduction of Gh_D06G0548, , Gh_D06G0571, , and Gh_D06G0763 into transformed yeasts led to significant increases in fatty acid contents, especially palmitoleic acid. These findings not only shed more light on the molecular regulations of fatty acid biosynthesis and oil accumulation in cottonseed, but also provide a list of candidate genes for enhancing cottonseed oil content and improving fatty acid composition and its nutritional value.

引用

页数：11