生物
基因
基因家族
非生物胁迫
遗传学
棉属
基因复制
非生物成分
基因表达
巴巴多斯棉
古生物学
作者
Lingxia Zhao,Yaoshen Wang,Rongrong Cui,Yupeng Cui,Xuke Lu,Xiugui Chen,Junjuan Wang,Delong Wang,Zujun Yin,Shuai Wang,Fanjia Peng,Lixue Guo,Chao Chen,Wuwei Ye
摘要
Abstract As an important member of the two‐component system (TCS), histidine kinases (HKs) play important roles in various plant developmental processes and signal transduction in response to a wide range of biotic and abiotic stresses. So far, the HK gene family has not been investigated in Gossypium . In this study, a total of 177 HK gene family members were identified in cotton. They were further divided into seven groups, and the protein characteristics, genetic relationship, gene structure, chromosome location, collinearity, and cis ‐elements identification were comprehensively analyzed. Whole genome duplication (WGD) / segmental duplication may be the reason why the number of HK genes doubled in tetraploid Gossypium species. Expression analysis revealed that most cotton HK genes were mainly expressed in the reproductive organs and the fiber at initial stage. Gene expression analysis revealed that HK family genes are involved in cotton abiotic stress, especially drought stress and salt stress. In addition, gene interaction networks showed that HKs were involved in the regulation of cotton abiotic stress, especially drought stress. VIGS experiments have shown that GhHK8 is a negative regulatory factor in response to drought stress. Our systematic analysis provided insights into the characteristics of the HK genes in cotton and laid a foundation for further exploring their potential in drought stress resistance in cotton.
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