An Analysis of Onion Genetic Diversity by RAPD

ACTA HORTICULTURAE SINICA ›› 2006, Vol. 33 ›› Issue (4): 863-865.

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An Analysis of Onion Genetic Diversity by RAPD

Cui Chengri¹; Xu Qijiang²;Cui Chongshi¹;Li Jingpeng^3*

(¹Colllege of Horticulture, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; ²Colllege of Life Science, Northeast Forestry University, Harbin, Heilongjiang 150040, China; ³Colllege of Life Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China)

Received:2005-10-09 Revised:2006-04-04 Online:2006-08-25 Published:2006-08-25

Abstract

Abstract: The genetic diversity of 41 onion (Allium cepa L. ) germp lasm resources were analyzed by RAPD (Random Amplified Polymorphic DNA). Results showed that 34 ( 53.13% ) polymorphic sites were detected among the total 64 sites amplified by 7 screened random primers ( among 100 primers). The RAPD-
based genetic similarity ranged from 0.694 to 1.000. UPGMA cluster analysis showed that the tested materials could be divided into nine groups at the level of genetic similarity 0.926. Dendrogram obtained using molecular markers is homologous with separated morphologic character in some degree.

Key words: Onion, RAPD, Genetic diversity, Cluster analysis

Cui Chengri;Xu Qijiang;Cui Chongshi;Li Jingpeng. An Analysis of Onion Genetic Diversity by RAPD[J]. ACTA HORTICULTURAE SINICA, 2006, 33(4): 863-865.

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An Analysis of Onion Genetic Diversity by RAPD

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