摘要
为揭示横断山云南山区不同地区大绒鼠(Eothenomys miletus)种群表型性状是否存在地理差异,采集德钦、香格里拉、丽江、剑川和哀牢山等5个地区大绒鼠,采用单因素方差、主成分、聚类等分析对大绒鼠体长、尾长和躯干长等24个表型性状进行表型多样性分析。结果显示:24个表型性状在种群间存在显著差异,变异非常丰富;种间变异(0.2662)大于种内变异(0.0264),种间变异是表型变异主要因素,种间平均表型分化系数(VST)为87.54%,分化水平相对较大;表型性状平均变异系数(CV)为4.80%(1.99%~8.66%);主成分分析表明德钦和香格里拉种群集中在一起;基于大绒鼠表型形态学数据构建模拟聚类分析关系图,将5个群划分为2大类。以上结果表明横断山云南山区不同地区大绒鼠表型性状出现地理差异,这可能与动物适应环境相关。
To determine the phenotypic diversity of Eothenomys miletus at different distribution areas of Yunnan range in Hengduan mountains,the Eothenomys miletus were collected from Ailaoshan,Lijiang,Jianchuan,Xiangelila and Deqin,respectively,and 24 phenotypic traits,such as body length,tail length and torso length,were chosen as research subjects.Principal component analysis,and cluster analysis were used to analyze these data.The results showed that 24 phenotypic traits were significantly different among the populations,and the variation was high;the interspecific variation was greater than the intraspecific variation,and the interspecific variation was the main factor of phenotypic variation.The average phenotypic differentiation coefficient(VST)between species was 87.54%,and the differentiation level was relatively large.The average coefficient of variation(CV)of phenotypic traits was 4.80%(1.99%-8.66%).Principal component analysis showed that DQ and XGLL populations were clustered together and using Euclidean distance for systematic cluster analysis,the populations divided into five groups,belonging to two major categories.Above all,the results indicated that the phenotypic traits of the Eothenomys miletus in different areas of Yunnan range in Hengduan mountains are geographically different,which may be related to the adaptation of animals to the environment.
作者
任月
贾婷
章迪
张浩
王政昆
朱万龙
REN Yue;JIA Ting;ZHANG Di;ZHANG Hao;WANG Zhengkun;ZHU Wanlong(Key Laboratory of Ecological Adaptive Evolution and Conservation on Animals-Plants in Southwest Mountain Ecosystem of Yunnan Province Higher Institutes College,School of Life Sciences,Yunnan Normal University,Engineering Research Center of Sustainable Development and Utilization of Biomass Energy,Ministry of Education,Kunming 650500,China;Yunnan College of Business Management,Kunming 650106,China;Yunnan Medical Health College,Kunming 650106,China)
出处
《生物学杂志》
CAS
CSCD
北大核心
2020年第6期79-83,93,共6页
Journal of Biology
基金
国家自然科学基金(31760118)
云南省中青年学术和技术带头人后备人才项目(2019HB013)。
关键词
横断山
大绒鼠
表型分化系数
Hengduan mountains
Eothenomys miletus
phenotypic differentiation coefficient
