生物多样性 ›› 2023, Vol. 31 ›› Issue (2): 22083.  DOI: 10.17520/biods.2022083

• 综述 • 上一篇    下一篇

绿藻门小球藻科的分类学研究进展

宋会银1,3, 胡征宇2, 刘国祥2,*()   

  1. 1.江汉大学生命科学学院, 武汉 430056
    2.中国科学院水生生物研究所中国科学院藻类生物学重点实验室, 武汉 430072
    3.江汉大学系统生物学研究院, 武汉 430056
  • 收稿日期:2022-02-21 接受日期:2022-10-24 出版日期:2023-02-20 发布日期:2023-02-12
  • 通讯作者: *刘国祥, E-mail: liugx@ihb.ac.cn
  • 基金资助:
    国家自然科学基金(32200171)

Assessing advances in taxonomic research on Chlorellaceae (Chlorophyta)

Huiyin Song1,3, Zhengyu Hu2, Guoxiang Liu2,*()   

  1. 1. School of Life Sciences, Jianghan University, Wuhan 430056
    2. Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072
    3. Institute for Systems Biology, Jianghan University, Wuhan 430056
  • Received:2022-02-21 Accepted:2022-10-24 Online:2023-02-20 Published:2023-02-12
  • Contact: *Guoxiang Liu, E-mail: liugx@ihb.ac.cn

摘要:

小球藻科物种生境范围广, 分布于全球各种淡水、海水及陆生环境中, 是多种生态系统的重要组成部分, 且以其重要的科学和应用价值成为研究热点。由于个体微小及较强的形态可塑性, 小球藻科物种能供分辨的形态特征有限, 其经典分类学研究和物种鉴定存在诸多困难。随着基于DNA序列的研究方法在分类学研究中的应用, 小球藻科历经多次修订, 物种组成发生了很大变化, 目前, 小球藻科包含约48个属258个种。该科分类仍存在许多悬而未决的问题, 如有些属、种的分类地位存疑、分类单元的多系起源问题、一些新支系有待进行物种归类。本文系统总结了小球藻科分类学研究历史和现状, 并对其中存在的问题及存疑类群进行阐述, 探讨了基因组学数据测序情况及其在分类学上的应用前景, 以期为小球藻科的系统分类研究和开发利用提供基础参考资料。

关键词: 小球藻科, 小球藻属, 物种多样性, 分类学, 系统发育

Abstract

Background & Aims: Species of the Chlorellaceae family have been found in freshwater, marine, and terrestrial habitats all over the world. Organisms in the Chlorellaceae family are important in a variety of ecosystems, and because of important scientific and applied value, considerable research has been conducted on this family. The morphological characteristics of Chlorellacean members have been difficult to distinguish due to their small size, similar morphological structures, and strong phenotypic plasticity. This has resulted in difficulties in species identification and taxonomic research.

Advances: With the application of DNA-based research methods, taxonomists have made a series of revisions to the taxonomy of the Chlorellaceae family, and members have changed considerably. There are now 48 genera and 258 species in the Chlorellaceae family. Taxonomists have identified additional issues, such as the uncertain taxonomic status of some genera and species, the polyphyletic origin of some genera, and the necessity to classify some new clades, that require additional research.

Prospects: This article reviewed the history and current status of taxonomic research on the Chlorellacean family, existing taxonomic problems, as well as the status of genome data sequencing and its potential application for taxonomy, with the goal of providing a reference for future taxonomic research and utilization.

Key words: Chlorellaceae, Chlorella, species diversity, taxonomy, phylogeny