植物学报 ›› 2021, Vol. 56 ›› Issue (1): 90-103.DOI: 10.11983/CBB20123

• 专题论坛 • 上一篇    下一篇

木本植物性别决定基因研究进展

陆静1,2, 陈赢男1,2,*(), 尹佟明1,2   

  1. 1南京林业大学林木遗传与生物技术省部共建教育部重点实验室, 南京 210037
    2南京林业大学林学院, 南方现代林业协同创新中心, 南京 210037
  • 收稿日期:2020-07-09 接受日期:2020-10-14 出版日期:2021-01-01 发布日期:2021-01-15
  • 通讯作者: 陈赢男
  • 作者简介:E-mail: chenyingnan@njfu.edu.cn
  • 基金资助:
    国家自然科学基金(32071795)

Research Progress on Sex Determination Genes of Woody Plants

Jing Lu1,2, Yingnan Chen1,2,*(), Tongming Yin1,2   

  1. 1Key Laboratory of Forest Genetics and Biotechnology of Ministry of Education, Nanjing Forestry University, Nanjing 210037, China
    2Co-Innovation Center for the Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, China
  • Received:2020-07-09 Accepted:2020-10-14 Online:2021-01-01 Published:2021-01-15
  • Contact: Yingnan Chen

摘要:

雌雄异株植物是研究性别决定遗传机制及性染色体起源与进化的理想材料, 而克隆性别决定基因是解析性别决定遗传机制的关键。木本植物中有丰富的雌雄异株植物, 且包括2种相反的性别决定系统: XY型(雌株为同配型的XX, 雄株为异配型的XY)和ZW型(雌株为异配型的ZW, 雄株为同配型的ZZ)。此外, 不同性别植株的经济价值也有所不同。在木本植物中开展性别决定机制研究不仅具有重要的理论意义, 还具有较高的生产应用价值。随着大规模基因测序技术的快速发展, 越来越多的木本植物性别决定基因被鉴定和克隆, 为解析雌雄异株植物性别决定机制和性染色体的演化过程提供了有力的实验证据。该文详细总结了近年来木本植物性别决定基因研究的重要进展, 并展望了未来的研究方向及发展趋势。

关键词: 雌雄异株, 木本植物, 性别决定系统, 性别决定基因, 基因克隆

Abstract:

Dioecious plants provide ideal materials for studying the sex determination mechanisms and the origin and evolution of sex chromosomes. Cloning of sex determination genes is crucial for revealing the sex-determination mechanism. There are many woody dioecious plant species, which contain two opposite sex determination systems: XY (females are homogametic XX and males are heterogametic XY) and ZW (females are heterogametic ZW and males are homogametic ZZ). Besides, trees of different sexes may have different economic values. Studies on the sex determination of woody plants not only have theoretical significances, but also have potential practical applications. With the development of large-scale sequencing technology, more and more sex determination genes of woody plants have been identified and cloned, which provides strong experimental evidence for the evolutionary history of dioecious plants and sex chromosomes. In this review, we summarized the important research progress on sex determination genes of woody plants, and discussed some future perspectives in this area.

Key words: dioecy, woody plant, sex determination system, sex determination gene, gene cloning