栽培
赤霉素
转录组
清脆的
细胞分裂素
生物
农学
基因
穗
粮食产量
产量(工程)
生物技术
植物
生长素
基因表达
遗传学
材料科学
冶金
作者
Shiqing Dong,Xianxin Dong,Xiaokang Han,Fan Zhang,Yu Zhu,Xiaoyun Xin,Ying Wang,Yuanyi Hu,Dingyang Yuan,Jianping Wang,Zhou Huang,Fuan Niu,Zejun Hu,Peiwen Yan,Liming Cao,Haohua He,Junru Fu,Yeyun Xin,Yanning Tan,Bigang Mao
标识
DOI:10.1073/pnas.2018799118
摘要
Significance Rice breeding programs aim to develop cultivars with improved traits, including high grain yield and superior quality. In rice, OsPDCD5 encodes a programmed cell death 5 protein. Targeted mutagenesis of OsPDCD5 enhanced grain yield and plant architecture. Statistical analysis indicated that plot grain yield of OsPDCD5 knockout lines was enhanced by 6.25 to 20.13% in 11 popular or newly bred rice cultivars compared with the corresponding wild types. The OsPDCD5 knockout lines showed increases in milled rice percentage and gel consistency, and a decrease in amylose content. Our results provide insight into the molecular mechanism by which OsPDCD5 influences grain yield and plant architecture, and highlight a promising candidate gene for use in breeding programs designed to develop super rice cultivars.
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