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2009•Zhejiang linye kejiRequires access

Phenotypic diversity of natural Torreya grandis populations.

Min Hui, Cheng ShiMing, Kang ZhiXiong, Youwu Chen

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Abstract

92 individuals in six natural populations of Torreya grandis in China were selected and investigated for discussion on phenotypic diversity within and among populations.Analysis on 8 traits of needle,fruit and seed demonstrated that there was significantly difference among and within populations.The mean phenotypic differentiation coefficient showed that the variation within populations(89.25)was higher than that among populations(10.2%).The variation in traits of fruit width was the lowest(CV = 13.95%) and in the traits of seed weight was the highest(CV = 34.71%).According to the average coefficient of variation,different populations had a descending order: Huangshan,Pan’an,Shengzhou,Zhongjialing,Dongbaihu,Shaoxing.According to the UPGMA cluster analysis,the six populations could be divided into three groups.

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What this paper is about

92 individuals in six natural populations of Torreya grandis in China were selected and investigated for discussion on phenotypic diversity within and among populations.Analysis on 8 traits of needle,fruit and seed demonstrated that there was significantly difference among and within populations.The mean phenotypic differentiation coefficient showed that the variation within populations(89.25)was higher than that among populations(10.2%).The variation in traits of fruit width was the lowest(CV = 13.95%) and in the traits of seed weight was the highest(CV = 34.71%).According to the average coefficient of variation,different populations had a descending order: Huangshan,Pan’an,Shengzhou,Zhongjialing,Dongbaihu,Shaoxing.According to the UPGMA cluster analysis,the six populations could be divided into three groups.

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Available abstract

92 individuals in six natural populations of Torreya grandis in China were selected and investigated for discussion on phenotypic diversity within and among populations.Analysis on 8 traits of needle,fruit and seed demonstrated that there was significantly difference among and within populations.The mean phenotypic differentiation coefficient showed that the variation within populations(89.25)was higher than that among populations(10.2%).The variation in traits of fruit width was the lowest(CV = 13.95%) and in the traits of seed weight was the highest(CV = 34.71%).According to the average coefficient of variation,different populations had a descending order: Huangshan,Pan’an,Shengzhou,Zhongjialing,Dongbaihu,Shaoxing.According to the UPGMA cluster analysis,the six populations could be divided into three groups.

Key concepts: UPGMA, Biology, Phenotypic trait, Coefficient of variation, Botany, Natural population growth, Genetic diversity, Phenotype

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Phenotypic diversity of natural Torreya grandis populations. — Research Paper | ScholarLens