秃杉种内遗传多样性的RAPD分析

Analysis on Genetic Diversity within Species of Taiwania Flousiana by RAPD

摘要:

本文利用RAPD技术，通过11个多态随机引物对3个秃杉种源的遗传多样性进行了研究。结果表明：秃杉天然群体内存在较丰富的遗传多样性，各位点平均基因多样度为0．4192，3个秃杉种源间的遗传多样性差异明显，19．5％的遗传变异存在于种源间。通过秃杉种内遗传多样性的研究，为今后有效保存和合理利用秃杉种质资源提供了理论依据。

Abstract:

Using RAPD molecular markers, the genetic diversity of 3 provenance of Taiwania flousiana has been studied in this paper based on 11 polymorphic random primers screened. The results show that Taiwania flousiana natural population has rich genetic diversity with average gene diversity for being 0 419 2, but, the difference is significant among 3 provenances and 19.5% of genetic variation exists among the provenances. The study will provide theory basis for effective conservation and reasonable utilization of germ plasma resource of Taiwania flousiana in the future through genetic diversity within species of Taiwania flousiana.