摘要
红锥（Castanopsis hystrix）是壳斗科（Fagaceae）锥属（Castanopsis）的常绿乔木,天然分布于我国广东、广西、云南、海南以及福建南部（中国树木志编委,1981;《广东森林》编辑委员会,1990）,是我国华南地区一个重要的生态公益林树种和珍贵用材树种。红锥为二倍体,2n=2x=24（Http：//www.tropicos.org/Name/）,单性花、雌雄同株。
The genetic diversity and genetic structure of 15 natural populations of Castanopsis hystrix in China were analyzed using ISSR markers. Results showed that the genetic diversity of C. hystrix was abundant,with percentage of polymorphic bands（ PPB） and Shannon＇s phenotypic diversity index（ H0） being 94. 89% and 0. 387 3 at the species level,76. 93% and 0. 305 0 at the populations level,respectively. There were significant genetic differentiation among and within populations,and 11. 25% of genetic variation existed among populations. The Mantel test showed that the geographic and genetic distances were not significantly correlated to each other. The present study provided a scientific basis for the conservation and utilization of genetic resources of C. hystrix.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2013年第10期162-166,共5页
Scientia Silvae Sinicae
基金
国家林业公益性行业科研专项基金(200904013)
广东省林业科技创新专项资金项目(2012KJCX003)
关键词
红锥
ISSR
遗传多样性
遗传结构
Castanopsis hystrix
ISSR
genetic diversity
genetic structure
