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Genetic and Morphologic Diversity in Castanea mollissima in Yanshan District and the Dabie Mountain District, China

文献类型: 外文期刊

作者: Lan Yan-ping 1 ; Zhou Lian-di 1 ; Yao Yan-wu 1 ; Zhou Jia-hua 1 ; Wang Shang-de 1 ;

作者机构: 1.Beijing Acad Agr & Forestry Sci, Inst Agr Integrated Dev, Beijing, Peoples R China

关键词: Castanea mollissima;genetic diversity;morphologic diversity

期刊名称:IV INTERNATIONAL CHESTNUT SYMPOSIUM

ISSN: 0567-7572

年卷期: 2009 年 844 卷

页码:

收录情况: SCI

摘要: Genetic and morphological diversity of Castanea mollissima were surveyed in China including Yanshan district and the Dabie Mountain district in the summers of 2005 and 2006. Nine populations including 82 varieties were sampled at Beijing, Hebei, Shandong, Zhejiang, Shanxi, Hubei, Henan, Jiangsu, and Anhui provinces. Allozyme analysis indicates that genetic subdivision is present in all populations at relatively low levels and variation among population is 4.25%. Significant differences existed in allele frequencies among populations. Genetic identity values range from 0.8766 to 0.9978. Within population variation was greater than that among population. Patterns of morphological variance, estimated through measurements of leaf length, leaf width, index of leaf, nut length, nut width, index of nut, weight of nut, paralleled those displayed by allozyme analysis. Species conservation strategies for Castanea mollissima should concentrated on the maintenance of within-population levels of diversity, such as varieties, and protection of adjacent populations.

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