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。
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 258species 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.
作者
宋会银
胡征宇
刘国祥
Huiyin Song;Zhengyu Hu;Guoxiang Liu(School of Life Sciences,Jianghan University,Wuhan 430056;Key Laboratory of Algal Biology,Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan 430072;Institute for Systems Biology,Jianghan University,Wuhan 430056)
出处
《生物多样性》
CAS
CSCD
北大核心
2023年第2期195-212,共18页
Biodiversity Science
基金
国家自然科学基金(32200171)。
