当前位置: 首页 > 文章 > The chloroplast-localized protein LTA1 regulates tiller angle and yield of rice 作物学报(英文版) 2022,10 (4)
Position: Home > Articles > The chloroplast-localized protein LTA1 regulates tiller angle and yield of rice The Crop Journal 2022,10 (4)

The chloroplast-localized protein LTA1 regulates tiller angle and yield of rice

作  者:
Xi Pan;Yongchao Li;Haiwen Zhang;Wenqiang Liu;Zheng Dong;Licheng Liu;Sanxiong Liu;Xinnian Sheng;Min Jiang;Rongfeng Huang;Xiaoxiang L
单  位:
Rice Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, Hunan, China;Rice Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, Hunan, Chin;Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
关键词:
Rice;Yield;Tiller angle;Gravitropism;Chloroplast developmen
摘  要:
Plant architecture strongly influences rice grain yield. We report the cloning and characterization of the LTA1 gene, which simultaneously controls tiller angle and yield of rice. LTA1 encodes a chloroplast-localized protein with a conserved YbaB DNA-binding domain, and is highly expressed in photosynthetic tissues including leaves and leaf sheaths. Disrupting the function of LTA1 leads to large tiller angle and yield reduction of rice. LTA1 affects the gravity response by mediating the distribution of endogenous auxin, thereby regulating the tiller angle. An lta1 mutant showed abnormal chloroplast development and decreased chlorophyll content and photosynthetic rate, in turn leading to reduction of rice yield. Our findings shed light on the genetic basis of tiller angle and provide a potential gene resource for the improvement of plant architecture and rice yield.

相似文章

计量
文章访问数: 13
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊