油茶种质资源遗传多样性分析

doi:10.11707/j.1001-7488.20060407

Scientia Silvae Sinicae ›› 2006, Vol. 42 ›› Issue (4): 38-43.doi: 10.11707/j.1001-7488.20060407

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Analysis of Genetic Diversity in Camellia oleifera Germplasms

Huang Yongfang¹,Chen Ximu¹,Zhuang Xueying¹,Lei Zhiguo¹,Chen Yongzhong²,Peng Shaofeng²

1. Forestry College of South China Agricultural University Guangzhou 510642;2. Hunan Academy of Forestry Changsha 410004

Received:2005-03-20 Revised:1900-01-01 Online:2006-04-25 Published:2006-04-25

Abstract

Abstract:

The genetic diversity of 90 Camellia oleifera clones was investigated and the relationship between these clones was analyzed using RAPD technique. Correlations between three quantitative traits (disease resistance, the rate of oil and oil yield) and molecular markers were also analyzed. The results are as follows: The total number of amplified fragments is 593, among which there are 564 polymorphic bands, the percentage of polymorphic bands is 95.11%. There are 32 distinctive bands(including missing distinctive bands),accounting for 5.32% in total bands. Abundant genetic diversity exists among C. oleifera clones.‘Yangchun’ and ‘Ruanzhi’ of C. oleifera aggregated in the same subgroup, indicating that they have close relationship, and could be the same agronomic cultivar at molecular level. Bands related to disease resistance, the rate of oil and oil yield account for 13.1%, 25.2% and 34.5% respectively, and could be used as reference in selecting resistant C. oleifera cultivars with both high quality and high yield.

Key words: Camellia oleifera, RAPD, genetic diversity, germplasm resources

Huang Yongfang;Chen Ximu;Zhuang Xueying;Lei Zhiguo;Chen Yongzhong;Peng Shaofeng. Analysis of Genetic Diversity in Camellia oleifera Germplasms[J]. Scientia Silvae Sinicae, 2006, 42(4): 38-43.

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Analysis of Genetic Diversity in Camellia oleifera Germplasms

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