长寿与短命: 十字花科植物中MADS-box基因的长袖善舞

doi:10.11983/CBB24076

植物学报 ›› 2024, Vol. 59 ›› Issue (3): 351-354.DOI: 10.11983/CBB24076

长寿与短命: 十字花科植物中MADS-box基因的长袖善舞

廉小平, Getachew Melaku, 张石来, 胡凤益^*()

云南大学农学院, 新基石科学实验室, 昆明 650405

收稿日期:2024-05-19 接受日期:2024-05-23 出版日期:2024-05-01 发布日期:2024-05-28
通讯作者: *胡凤益, 研究员。主要研究领域为野生稻有利基因发掘利用、多年生稻创制的基础及应用研究、多年生作物耕作与栽培技术及环境效应评价等。E-mail: hfengyi@ynu.edu.cn
基金资助:
国家自然科学基金(32341038);国家自然科学基金(32322063);新基石研究员项目(NCI202341)

MADS-box Genes Driven Life History Strategy Diversity in Brassicaceae

Xiaoping Lian, Getachew Melaku, Shilai Zhang, Fengyi Hu^*()

New Cornerstone Science Laboratory, School of Agriculture, Yunnan University, Kunming 650405, China

Received:2024-05-19 Accepted:2024-05-23 Online:2024-05-01 Published:2024-05-28
Contact: *E-mail: hfengyi@ynu.edu.cn

摘要/Abstract

摘要： 开花基因决定植物的一年生或多年生开花习性。已在不同植物中鉴定到多个开花基因, 然而关于开花基因如何驱动十字花科植物一年生与多年生生活史策略转变的进化机制仍不清楚。最近一项研究聚焦十字花科不同属的自然变异, 发现3个亲缘关系密切的MADS-box类转录因子编码基因(即FLC、FLM和MAF)与其一年生/多年生习性转变相关, 并解析了其分子机制, 提出十字花科植物生活史策略(即多年生/二年生/一年生之间的转换)是由FLC类MADS-box基因剂量叠加所决定的连续过程。研究结果初步明确了十字花科植物一年生与多年生生活史策略转换的进化机制和轨迹, 为培育多年生油菜品种奠定了理论基础, 也为其它十字花科作物的多年生化遗传改良提供借鉴。

关键词: 十字花科, 生活史策略, MADS-box, 多年生, 一年生, 转换

Abstract: The numerous flowering genes that have been identified in different plants play a crucial role in determining whether a plant is annual or perennial. However, the evolutionary mechanism by which these flowering genes drive the transition between annual and perennial life history strategies in Brassicaceae plants remains poorly understood. A recent study focused on natural variations in different genera of Brassicaceae. They identified three closely related MADS-box transcription factor genes, namely FLC, FLM, and MAF, and elucidated their molecular mechanisms associated with the transition between annual and perennial behavior. Their findings suggest that the life-history strategy in Brassicaceae plants (i.e., the conversion between perennial, biennial, and annual behavior) is a continuum determined by the dosage of FLC-like MADS-box genes. The study elucidates the evolutionary mechanisms and trajectories underlying the reciprocal conversion of life history strategies from annual to perennial in Brassicaceae, providing a theoretical foundation for breeding perennial rapeseed varieties and offering insights for Brassicaceae crops improved towards perennial grain.

Key words: Brassicaceae, life history strategy, MADS-box, perennial, annual, transition

廉小平, Getachew Melaku, 张石来, 胡凤益. 长寿与短命: 十字花科植物中MADS-box基因的长袖善舞. 植物学报, 2024, 59(3): 351-354.

Xiaoping Lian, Getachew Melaku, Shilai Zhang, Fengyi Hu. MADS-box Genes Driven Life History Strategy Diversity in Brassicaceae. Chinese Bulletin of Botany, 2024, 59(3): 351-354.

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链接本文: https://www.chinbullbotany.com/CN/10.11983/CBB24076

https://www.chinbullbotany.com/CN/Y2024/V59/I3/351

图/表 1

图1 十字花科开花植物从一年生向多年生转换的机制十字花科开花植物从多年生向二年生/一年生的转变由3个密切相关的MADS-box基因决定, 这3个基因中的1个基因就能够将1次结实一年生十字花科植物转化为多年生多次开花植物。MADS-box基因剂量在开花特性进化中扮演关键角色, 丰富的多年生开花植物表型与MADS-box基因的表达水平相关。

Figure1 The mechanism of annual transforming into polycarpic perennial flowering plants in Brassicaceae The transition of Brassicaceae plants from a polycarpic perennial life cycle to biennial and annual flowering behavior is controlled by three closely related MADS-box genes. Notably, a single gene among these three is sufficient to convert annual Brassicaceae plants into polycarpic perennial flowering plants. The dosage of MADS-box genes plays a pivotal role in the evolution of flowering behavior, as the phenotypes of diverse perennial flowering plants observed may be attributed to differential expression levels of MADS- box genes in Brassicaceae.

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长寿与短命: 十字花科植物中MADS-box基因的长袖善舞

MADS-box Genes Driven Life History Strategy Diversity in Brassicaceae

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