The diversification of the shoot branching system: A quantitative and comparative perspective in meristem determinacy.

Autor: Li J; Guangdong Laboratory for Lingnan Modern Agriculture & the State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources & College of Life Sciences, South China Agricultural University, Guangzhou 510642, Guangdong, China., Yao X; Guangdong Laboratory for Lingnan Modern Agriculture & the State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources & College of Life Sciences, South China Agricultural University, Guangzhou 510642, Guangdong, China., Lai H; Guangdong Laboratory for Lingnan Modern Agriculture & the State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources & College of Life Sciences, South China Agricultural University, Guangzhou 510642, Guangdong, China., Zhang X; Guangdong Laboratory for Lingnan Modern Agriculture & the State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources & College of Life Sciences, South China Agricultural University, Guangzhou 510642, Guangdong, China., Zhong J; Guangdong Laboratory for Lingnan Modern Agriculture & the State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources & College of Life Sciences, South China Agricultural University, Guangzhou 510642, Guangdong, China; Guangdong Provincial Key Laboratory of the Developmental Biology and Environmental Adaptation of Agricultural Organisms, South China Agricultural University, Guangzhou 510642, Guangdong, China; South China Institute for Soybean Innovation Research, South China Agricultural University, Guangzhou 510642, Guangdong, China. Electronic address: jinshun.zhong@scau.edu.cn.
Jazyk: angličtina
Zdroj: Current opinion in plant biology [Curr Opin Plant Biol] 2024 Oct; Vol. 81, pp. 102574. Date of Electronic Publication: 2024 Jun 24.
DOI: 10.1016/j.pbi.2024.102574
Abstrakt: Reiterative shoot branching largely defines important yield components of crops and is essentially controlled by programs that direct the initiation, dormancy release, and differentiation of meristems in the axils of leaves. Here, we focus on meristem determinacy, defining the number of reiterations that shape the shoot architectures and exhibit enormous diversity in a wide range of species. The meristem determinacy per se is hierarchically complex and context-dependent for the successively emerged meristems, representing a crucial mechanism in shaping the complexity of the shoot branching. In addition, we have highlighted that two key components of axillary meristem developmental programs may have been co-opted in controlling flower/ear number of an axillary inflorescence in legumes/maize, hinting at the diversification of axillary-meristem-patterning programs in different lineages. This begs the question how axillary meristem patterning programs may have diversified during plant evolution and hence helped shape the rich variation in shoot branching systems.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: