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• 研究报告 • 上一篇    下一篇

四种松毛虫表型性状多样性与环境因子的关系

南宫自艳1,杨君2,徐秀平3,高宝嘉4**   

  1. 1河北农业大学植物保护学院, 河北保定 071000; 2河北农业大学农学院, 河北保定 071000; 3河北省邯郸市农业广播电视学校, 河北邯郸 056001; 4河北农业大学林学院, 河北保定 071000)
  • 出版日期:2013-03-10 发布日期:2013-03-10

Morphological diversity of four Dendrolimus species in relation to environmental factors.

NANGONG Zi-yan1, YANG Jun2, XU Xiu-ping3, GAO Bao-jia4**   

  1. (1College of Plant Protection, Agricultural University of Hebei, Baoding 071000, Hebei, China; 2College of Agronomy, Agricultural University of Hebei, Baoding 071000, Hebei, China; 3Handan Agricultural Broadcasting and Television School, Handan 056001, Hebei, China; 4College of Forestry, Agricultural University of Hebei, Baoding 071000, Hebei, China)
  • Online:2013-03-10 Published:2013-03-10

摘要:

对马尾松毛虫、落叶松毛虫、云南松毛虫、思茅松毛虫4种松毛虫的8个表型性状(蛹重、蛹长、雌雄虫体重、雌雄虫翅展和雌雄虫体长)进行了遗传多样性分析。结果表明:8项性状指标在4种松毛虫之间差异极显著;在所有性状中变异系数最大的是蛹重(CV=51.99%);对各种群变异系数比较分析发现,变异系数最大的是落叶松毛虫,最小的是云南松毛虫。主成分分析表明,蛹长、雌虫体重和雌虫翅展3个主分量构成的信息量基本能代表这8个性状的变异。系统聚类的结果为马尾松毛虫与落叶松毛虫聚为第一分支,思茅松毛虫和云南松毛虫聚为第二分支。松毛虫属昆虫表型性状的变异与生态环境因子的相关性较密切。
 

Abstract: A genetic diversity analysis was made on the morphological characteristics (pupa weight, pupa length, female weight, female wing length, female body length, male weight, male wing length, and male body length) of Dendrolimus punctatus punctatus Walker, D. superans Butler, D. houi Lajonquiere, and D. kikuchii Matsumura. Significant differences were observed in the test morphological characteristics among the four Dendrolimus species, with the largest coefficient of variation (CV=51.99%) of pupa weight. D. superans population had the largest morphological diversity, while D. houi population had the smallest one. The principal component analysis showed that pupa length, female weight, and female wing length contributed most to the morphological diversity. Based on the UPGMA clustering, the first branch included D. punctatus punctatus and D. superans, and the second one included D. houi and D. kikuchii. There exited close correlations between the morphological diversity of the Dendrolimus species and the ecoenvironmental factors.