文献类型: 外文期刊
第一作者: Ji, Gaoxiang
作者: Ji, Gaoxiang;Pan, Zhaoe;Jia, Yinhua;Pei, Xinxin;Gong, Wenfang;Wang, Xiaoyang;Gao, Qiong;Peng, Zhen;Wang, Liru;Sun, Junling;Geng, Xiaoli;Wang, Pengpeng;Chen, Baojun;He, Shoupu;Du, Xiongming;Liang, Chengzhen;Meng, Zhigang;Li, Yanyan;Wang, Peilin;Zhu, Tao;Zhang, Rui;Cai, Yingfan;Miao, Yuchen
作者机构:
关键词: CNVs; cotton; GhDREB1B; high planting density; plant architecture
期刊名称:NEW PHYTOLOGIST ( 影响因子:10.151; 五年影响因子:10.475 )
ISSN: 0028-646X
年卷期: 2021 年 229 卷 4 期
页码:
收录情况: SCI
摘要: Improving yield is a primary mission for cotton (Gossypium hirsutum) breeders; development of cultivars with suitable architecture for high planting density (HPDA) can increase yield per unit area. We characterized a natural cotton mutant, AiSheng98 (AS98), which exhibits shorter height, shorter branch length, and more acute branch angle than wild-type. A copy number variant at the HPDA locus on Chromosome D12 (HPDA-D12), encoding a dehydration-responsive element-binding (DREB) transcription factor, GhDREB1B, strongly affects plant architecture in the AS98 mutant. We found an association between a tandem duplication of a c. 13.5 kb segment in HPDA-D12 and elevated GhDREB1B expression resulting in the AS98 mutant phenotype. GhDREB1B overexpression confers a significant decrease in plant height and branch length, and reduced branch angle. Our results suggest that fine-tuning GhDREB1B expression may be a viable engineering strategy for modification of plant architecture favorable to high planting density in cotton.
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