期刊
JOURNAL OF INTEGRATIVE AGRICULTURE
卷 21, 期 11, 页码 3103-3113出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jia.2022.07.059
关键词
rice; srl3; semi-rolled leaf; bulliform cell; sclerenchymatous cell
资金
- National Natural Science Foundation of China
- [32071993]
- [91735304]
Moderate leaf rolling can increase rice yield by maintaining leaf erectness and improving light transmittance. The study identified a novel leaf-rolling-related gene, SRL3, which affects plant height, seed-setting rate, and tiller number.
Moderate leaf rolling can maintain leaf erectness, improve light transmittance in the population, and improve light energy utilization, thereby increasing rice yield. This study used ethyl methanesulfonate (EMS) to treat Yunjing 17 (YJ17) and obtained a semi-rolled leaf mutant that was named semi-rolled leaf 3 (srl3). We found that the rolled-leaf phenotype was due to the aberrant development of bulliform cells and the loss of sclerenchymatous cells. In addition, the shoot and root length of srl3 seedlings differed from the wild type. The srl3 mutant had significantly lower plant height and seed-setting rate but notably greater tiller number, panicle length, and primary branch number per panicle than the wild type. Genetic analysis showed that a single recessive nuclear gene defined the srl3 mutant, and it was precisely located in a 144-kb region between two insertion-deletion (InDel) markers, M8 and M19, on chromosome 2. In this region, no leaf-rolling -related genes have been reported previously. Thus, the study indicated that SRL3 is a novel leaf-rolling-related gene, and the results laid the foundation for the cloning and functional analysis of the SRL3 gene.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据