生物多样性 ›› 2020, Vol. 28 ›› Issue (2): 176-188.DOI: 10.17520/biods.2019373

• 综述 • 上一篇    下一篇

植物生命之树重建的现状、问题和对策建议

王伟1,2,*(),刘阳3   

  1. 1 中国科学院植物研究所系统与进化植物学国家重点实验室, 北京 100093
    2 中国科学院大学, 北京 100049
    3 深圳市中国科学院仙湖植物园, 广东深圳 518004
  • 收稿日期:2019-11-26 接受日期:2019-12-26 出版日期:2020-02-20 发布日期:2020-01-06
  • 通讯作者: 王伟
  • 基金资助:
    中国科学院战略性科技先导专项B类(XDB31030000);国家自然科学基金(31770233);国家自然科学基金(31770231);国家自然科学基金(31470315)

The current status, problems, and policy suggestions for reconstructing the plant tree of life

Wang Wei1,2,*(),Liu Yang3   

  1. 1 State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093
    2 University of Chinese Academy of Sciences, Beijing 100049
    3 Fairylake Botanical Garden, Shenzhen & Chinese Academy of Sciences, Shenzhen, Guangdong 518004
  • Received:2019-11-26 Accepted:2019-12-26 Online:2020-02-20 Published:2020-01-06
  • Contact: Wang Wei

摘要:

生命之树的概念源自1859年达尔文的《物种起源》, 但利用分子数据重建植物生命之树的研究则在20世纪90年代才开始兴起。近年来, 随着测序技术、分析方法和计算能力的快速发展, 植物生命之树重建研究取得了显著成果。本文首先概述了当前以及未来很长一段时间内植物生命之树重建工作的重点, 包括植物属级和种级水平的系统发育研究、植物系统发育基因组学研究、分子和形态数据联合分析、包括灭绝与现存植物类群的生命之树重建, 以及超大植物生命之树重建等5个方面; 然后简要概括国内植物生命之树重建研究的现状, 指出了我国在植物生命之树重建领域发展中所存在的问题, 并从“类群研究体系、学科评价体系、国家顶层设计, 以及拓展国际合作”等方面对学科未来的发展提出了一些对策建议。

关键词: 分子系统学, 系统发育基因组学, 形态学, 超大树, 生命之树

Abstract:

In 1859, Charles Darwin put forward the concept of the tree of life (TOL), a metaphor for charting relationships between organisms in space and time in his The Origin of Species. The TOL is a cornerstone in evolutionary theory and makes sense of all biology. Decades of research in plant molecular systematics has led to substantial progress in understanding many aspects of the plant TOL. Here, we summarized five major aspects of reconstructing the plant TOL, which are being studied at the present day and will continue to be goals moving forward. These include: (1) constructing genus- and species-level phylogenies for plant groups; (2) resolving deep-time and/or rapidly divergent phylogenetic relationships using genomic approaches; (3) updating classification systems by combining morphological and molecular data; (4) integrating fossil taxa into phylogenies derived from extant taxa; and (5) building big trees using supermatrix methods. We then outlined the current state of plant molecular systematics and highlight existing problems in the field, specifically in regard to China. Finally, we propose the corresponding guidelines and policy suggestions for the continued study of China’s reconstruction of the plant TOL.

Key words: molecular systematics, phylogenomics, morphology, big tree, tree of life