Map-based cloning of qLPA01.1, a favorable allele from the Gossypium tomentosum chromosome segment line

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棉花染色体片段系优势等位基因qLPA01.1的图位克隆

关键词：

来源：

JOURNAL OF INTEGRATIVE AGRICULTURE

全文链接：

//agri.nais.net.cn/topic/downloadFile/58d45430-aa40-492d-84af-8ee9ec9d73a3

来源地址：

https://www.sciencedirect.com/science/article/pii/S2095311924000571?via%3Dihub

资源所属：

棉花遗传育种

类型：

学术文献

语种：

英语

原文发布日期：

2024-10-01

摘要：

Cotton is an important natural fiber crop worldwide which plays a vital role in our daily life. High yield is a constant goal of cotton breeding, and lint percentage (LP) is one of the important components of cotton fiber yield. A stable QTL controlling LP, qLP(A01).(1), was identified on chromosome A01 from Gossypium hirsutum introgressed lines with G. tomentosum chromosome segments in a previous study. To fine-map qLP(A01).(1), an F-2 population with 986 individuals was established by crossing G. hirsutum cultivar CCRI35 with the chromosome segment substitution line HT_390. A high-resolution genetic map including 47 loci and spanning 56.98 cM was constructed in the QTL region, and qLP(A01).(1) was ultimately mapped into an interval corresponding to an similar to 80 kb genome region of chromosome A01 in the reference genome, which contained six annotated genes. Transcriptome data and sequence analysis revealed that S-acyltransferase protein 24 (GoPAT24) might be the target gene of qLP(A01).(1). This result provides the basis for cotton fiber yield improvement via marker-assisted selection (MAS) and further studies on the mechanism of cotton fiber development.