禾本科植物分蘖为茎的分枝研究提供新视角

Grass Tillering Provide New Insights into Regulation of Shoot Branching

分蘖(或分枝)是作物产量的一个主要决定因素,受植物激素、自身生长发育和环境等因素的调控。近年报道的单子叶植物新的分蘖(或分枝)基因和调控机制深化了对植物分蘖的认知。对以禾本科植物为代表的单子叶植物的分蘖(或分枝)相关基因和调控机制进行了综述,从激素、基因、转录等几方面比较了单子叶植物分蘖和双子叶植物分枝调控机制的异同,为植物产量形成、适应环境及提高生存竞争能力的研究提供理论依据。

Tillering（branching） is a major determinant of crop yield that is controlled by plant hormones, growth and environment factors, et al. Some new branching genes and regulatory mechanisms recently reported in monocots have contributed to our knowledge of tillering/branching. The tillering/branching relate genes and regulatory mechanisms represented by gramineous plants were reviewed. The similarities and differences of tillering/branching regulatory mechanism between eudicots and monocots were compared in the perspectives of hormone, gene, transcription. These provides theoretical basis for the formation of plants yield, the adaptation to environment, and the enhancement of survival competition ability.