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Genetic diversity analysis of Hepatacodium miconioides at different altitude in Tiantai Mountain, Zhejiang Province, China and its relationship with environmental factors

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Frontiers of Biology in China

Abstract

The genetic diversity within and among populations of Hepatacodium miconioides collected at three different altitudes in Tiantai Mountain, Zhejiang Province and its relationships to environmental factors were analyzed by random amplified polymorphic DNA (RAPD) technique. Amplification using 12 random primers of 60 plants and 122 repetitive loci were produced. The percentage of polymorphic loci of three populations ranged from 18.85% to 23.77% with an average of 21.86%, indicating the relatively low genetic diversity of H. miconioides. The average Shannon index of phenotypic diversity (0.1329) and Nei index (0.0925) within populations were relatively low. A distinct genetic differentiation existed among populations of H. miconioides in spite of the relatively small geographical distribution. The average genetic diversity within populations of H. miconioides accounted for 33.58% of the total genetic diversity while the genetic diversity among populations accounted for 66.42% as estimated by the Shannon index of phenotypic diversity, The genetic differentiation among populations of H. miconioides was 0.6546, as estimated by Nei index. The gene flow estimated from G ST was only 0.2656 and it indicated that gene flow among populations of H. miconioides was relatively low. The mean value of the genetic identity among populations of H. miconioides was 0.7126 and the average of genetic distance of H. miconioides was 0.3412. The genetic identity between populations at the elevation of 990 m and at the elevation of 780 m was the highest. The genetic identity between population at the elevation 500 m and other two populations was relatively low. The correlation analysis showed that the genetic diversity within populations was significantly related with the soil total nitrogen.

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Authors and Affiliations

  1. Department of Biology, Taizhou University, Linhai, Zhejing, 317000, China

    Jin Zexin & Li Junmin

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  1. Jin Zexin
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  2. Li Junmin
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Correspondence to Jin Zexin.

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Translated from Journal of Zhejiang University (science Edition) 2005, 32 (4)[译81EA;: 浙江大学学报(理学版), 2005,32(4)]

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Jin, Z., Li, J. Genetic diversity analysis of Hepatacodium miconioides at different altitude in Tiantai Mountain, Zhejiang Province, China and its relationship with environmental factors. Front. Biol. China 1, 151–157 (2006). https://doi.org/10.1007/s11515-006-0001-3

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