《植物生理学报》 2018, 54(3): 355-362

被子植物花器官发育的模型演变和分子调控

景丹龙, 郭启高, 陈薇薇, 夏燕, 吴頔, 党江波, 何桥, 梁国鲁^*

西南大学园艺园林学院, 南方山地园艺学教育部重点实验室, 重庆400715

通信作者：梁国鲁；E-mail: lianggl@swu.edu.cn

摘　要：

基于模式植物拟南芥(Arabidopsis thaliana)和金鱼草(Antirrhinum majus)花器官突变体研究提出的四聚体模型揭示了花同源异型蛋白的相互作用方式; 进一步提出的核小体拟态模型, 解释了花同源蛋白四聚体调控目标靶基因的分子机理。被子植物花器官形态多样化与MADS-box基因的表达模式和功能分化密切相关。多年生被子植物花发育的高通量转录组分析表明, 多种基因参与调控花器官发育过程。本文重点综述了被子植物花器官发育的模型演变、MADS-box基因结构和基因重复、miRNA调控以及相关转录组分析的最新研究成果, 并对花器官发育的研究前景进行了展望。

关键词：花器官发育; 四聚体模型; 核小体拟态模型; MADS-box基因; miRNA调控; 转录组分析

收稿：2017-11-27   修定：2018-02-06

资助：国家星火计划项目(2015GA811003)、西南大学博士基金(SWU118009)、国家林业局林业科技推广示范项目(渝林科推2016-03)、重庆市科委重点研发项目(cstc2017shmszdyf0102)和重庆市林业局科技攻关项目(渝林科研2016-10)。

Model evolution and molecular mechanism of angiosperm flower development

JING Dan-Long, GUO Qi-Gao, CHEN Wei-Wei, XIA Yan, WU Di, DANG Jiang-Bo, HE Qiao, LIANG Guo-Lu^*

Key Laboratory of Horticulture Science for Southern Mountains Regions of Ministry of Education; College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China

Corresponding author: LIANG Guo-Lu; E-mail: lianggl@swu.edu.cn

Abstract:

The floral quartet model reveals the interaction patterns of the floral homeotic proteins by the studies of floral mutants in Arabidopsis thaliana and Antirrhinum majus. The nucleosome mimicry model provided clues into how floral quartet-like protein complexes acquire target gene specificity. The diversity of angiosperms flowers is closely related to the expression patterns and functional differentiation of MADS-box genes. Recently, the floral transcriptome analyses of perennial plants suggest that the flower development is involved in multiple regulatory genes. In this review, we summarized the recent studies involving in the model evolution, the sequences and duplication event of MADS-box genes, the regulation of miRNAs, and related transcriptome analysis in the floral development.

Key words: flower development; floral quartet model; nucleosome mimicry model; MADS-box genes; regulation of miRNAs; transcriptome analysis