Fine-mapping qFS07.1 controlling fiber strength in upland cotton (Gossypium hirsutum L.)

被引：44

作者：

Fang, Xiaomei ^{[1
]}

Liu, Xueying ^{[1
]}

Wang, Xiaoqin ^{[1
]}

Wang, Wenwen ^{[1
]}

Liu, Dexin ^{[1
]}

Zhang, Jian ^{[1
]}

Liu, Dajun ^{[1
]}

Teng, Zhonghua ^{[1
]}

Tan, Zhaoyun ^{[1
]}

Liu, Fang ^{[1
]}

Zhang, Fengjiao ^{[1
]}

Jiang, Maochao ^{[1
]}

Jia, Xiuling ^{[1
]}

Zhong, Jianwei ^{[1
]}

Yang, Jinghong ^{[1
]}

Zhang, Zhengsheng ^{[1
]}

机构：

[1] Southwest Univ, Engn Res Ctr South Upland Agr, Minist Educ, Chongqing 400716, Peoples R China

来源：

THEORETICAL AND APPLIED GENETICS | 2017年 / 130卷 / 04期

基金：

中国国家自然科学基金;

关键词：

CELL-WALL BIOSYNTHESIS; QUANTITATIVE TRAIT LOCI; TRANSCRIPTION FACTOR; GENOME SEQUENCE; PROVIDES INSIGHTS; QUALITY TRAITS; ABSCISIC-ACID; QTL ANALYSIS; GENE; ELONGATION;

D O I：

10.1007/s00122-017-2852-1

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

qFS07.1 controlling fiber strength was fine-mapped to a 62.6-kb region containing four annotated genes. RT-qPCR and sequence of candidate genes identified an LRR RLK gene as the most likely candidate. Fiber strength is an important component of cotton fiber quality and is associated with other properties, such as fiber maturity, fineness, and length. Stable QTL qFS07.1, controlling fiber strength, had been identified on chromosome 7 in an upland cotton recombinant inbred line (RIL) population from a cross (CCRI35 x Yumian1) described in our previous studies. To fine-map qFS07.1, an F-2 population with 2484 individual plants from a cross between recombinant line RIL014 and CCRI35 was established. A total of 1518 SSR primer pairs, including 1062, designed from chromosome 1 of the Gossypium raimondii genome and 456 from chromosome 1 of the G. arboreum genome (corresponding to the QTL region) were used to fine-map qFS07.1, and qFS07.1 was mapped into a 62.6-kb genome region which contained four annotated genes on chromosome A07 of G. hirsutum. RT-qPCR and comparative analysis of candidate genes revealed a leucine-rich repeat protein kinase (LRR RLK) family protein to be a promising candidate gene for qFS07.1. Fine mapping and identification of the candidate gene for qFS07.1 will play a vital role in marker-assisted selection (MAS) and the study of mechanism of cotton fiber development.

引用

页码：795 / 806

页数：12

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