全基因组关联研究和转录组分析揭示了控制棉花果枝角度的关键基因。

Genome-wide association study and transcriptome analysis reveal key genes controlling fruit branch angle in cotton.

作者信息

Shao Panxia, Peng Yabin, Wu Yuanlong, Wang Jing, Pan Zhenyuan, Yang Yang, Aini Nurimanguli, Guo Chunping, Shui Guangling, Chao Lei, Tian Xiaomin, An Qiushuang, Yang Qingyong, You Chunyuan, Lu Lu, Zhang Xianlong, Wang Maojun, Nie Xinhui

机构信息

Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi, Xinjiang, China.

National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, China.

出版信息

Front Plant Sci. 2022 Sep 21;13:988647. doi: 10.3389/fpls.2022.988647. eCollection 2022.

Fruit branch angle (FBA), a pivotal component of cotton plant architecture, is vital for field and mechanical harvesting. However, the molecular mechanism of FBA formation is poorly understood in cotton. To uncover the genetic basis for FBA formation in cotton, we performed a genome-wide association study (GWAS) of 163 cotton accessions with re-sequencing data. A total of 55 SNPs and 18 candidate genes were significantly associated with FBA trait. By combining GWAS and transcriptome analysis, four genes underlying FBA were identified. An FBA-associated candidate gene , which is homologous to in , was detected in our study. In addition, transcriptomic evidence was provided to show that gravity and light were implicated in the FBA formation. This study provides new insights into the genetic architecture of FBA that informs architecture breeding in cotton.

果枝角度（FBA）是棉花植株形态的一个关键组成部分，对田间和机械采收至关重要。然而，棉花中FBA形成的分子机制尚不清楚。为了揭示棉花FBA形成的遗传基础，我们利用重测序数据对163份棉花种质进行了全基因组关联研究（GWAS）。共有55个单核苷酸多态性（SNP）和18个候选基因与FBA性状显著相关。通过结合GWAS和转录组分析，鉴定出了4个控制FBA的基因。在我们的研究中检测到一个与FBA相关的候选基因，它与[具体物种]中的[具体基因]同源。此外，还提供了转录组学证据表明重力和光照与FBA的形成有关。本研究为FBA的遗传结构提供了新的见解，为棉花的形态育种提供了参考。