沙菜属(红藻门 杉藻目)的分类学问题探讨  

Discussion on the taxonomic problems of the genus Hypnea

作　　者：刘金梅 黄冰心 马鑫 王雪聪 闫璟 闫盼竹 丁兰平 LIU Jin-mei;HUANG Bing-xin;MA Xin;WANG Xue-cong;YAN Jing;YAN Pan-zhu;DING Lan-ping(Tianjin Key Laboratory of Animal and Plant Resistance,College of Life Sciences,Tianjin Normal University,Tianjin 300387,China)

机构地区：[1]天津师范大学生命科学学院,天津市动植物抗性重点实验室,天津300387

出　　处：《海洋科学》2021年第8期109-117,共9页Marine Sciences

基　　金：国家自然科学基金面上项目(31670199,31400186);天津市教委科研计划项目(JW1705)。

摘　　要：沙菜属(Hypnea)是卡拉胶生产的重要经济栽培物种,但该属具有复杂的命名史和物种分类难题,其广泛的地理分布、高度的遗传变异以及较强的表型可塑性,存在许多同物异名和形态趋同的现象,导致其物种鉴定中出现了一系列的争议。因此,本文尝试总结分析沙菜属分类中存在的问题,以及涉及“物种”定义的初步探讨,特别是基因树与物种树的关联性,以期为解决该属分类学问题提供一定的参考思路。The genus Hypnea has a significant economic value for carrageenan production;however,it has a com-plex nomenclatural history and taxonomic problems because of its wide geographical distribution,high genetic variation,strong phenotypic plasticity,and numerous phenomena of synonyms and morphologic convergence,all of which have led to a series of controversies in species identification.Therefore,this paper attempts to summarize and discuss the taxonomic problems of Hypnea as well as explore the definition of species,particularly the relationship between a gene tree and species tree,to provide some valuable references for the classification of Hypnea.

关 键 词：沙菜属 分类 隐存种 物种 分子标记 

分 类 号：Q945.5[生物学—植物学]