生物学杂志 ›› 2020, Vol. 37 ›› Issue (6): 79-.doi: 10.3969/j.issn.2095-1736.2020.06.079

• 研究报告 • 上一篇    下一篇

横断山云南山区不同地区大绒鼠种群的表型多样性

  

  1. 1. 云南省高校西南山地生态系统动植物生态适应进化及保护重点实验室 云南师范大学生命科学学院生物能源持续开发利用教育部工程研究中心 云南省生物质能与环境生物技术重点实验室, 昆明 650500;2.云南经济管理学院, 昆明 650106; 3.云南医药健康职业学院, 昆明 650106
  • 出版日期:2020-12-18 发布日期:2020-12-21
  • 通讯作者: 朱万龙,教授,博士生导师,研究方向为生态学,E-mail:zwl_8307@163.com
  • 作者简介:任月,博士研究生,研究方向为动物生理生态,E-mail: 2780034784@qq.com
  • 基金资助:
    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)

Phenotypic diversity of the Eothenomys miletus at different areas of Yunnan range in Hengduan mountains#br#

  1. 1. Key Laboratory of Ecological Adaptive Evolution and Conservation on Animals-Plants in Southwest MountainEcosystem 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 ofEducation, Kunming 650500, China; 2. Yunnan College of Business Management, Kunming 650106, China;3. Yunnan Medical Health College, Kunming 650106, China
  • Online:2020-12-18 Published:2020-12-21

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。

关键词: 横断山, 大绒鼠, 表型分化系数

Abstract: 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.

Key words: Hengduan mountains, Eothenomys miletus, phenotypic differentiation coefficient

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