Genetic Diversity of Malus toringoides ( Rehd. ) Hughes Based on AFLP

ACTA HORTICULTURAE SINICA ›› 2006, Vol. 33 ›› Issue (2): 381-384.

• 研究简报 • Previous Articles Next Articles

Genetic Diversity of Malus toringoides ( Rehd. ) Hughes Based on AFLP

Shi Shengyou¹;Cheng Minghao²; Liang Guolu^2*;Guo Qigao²;Li Xiaolin²;Zhou Zhiqin^2*

(¹ State Forestry Administration of Yichang, Yichang 443000, China; ²College of Horticulture and Landscape, Southwest University, the Key Laboratory for Pomology of Chongqing, Chongqing 400716, China)

Received:2005-04-18 Revised:2005-08-22 Online:2006-04-25 Published:2006-04-25

Abstract

Abstract: The study ismainly on the genetic diversity of Malus toringoides (Rehd. ) Hughes by app ying AFLP. 658 bandswere obtained with 8 pairs of AFLP primers based on 30 variant types, and among them 568 (86.59% ) were polymorphic with an average of 71 bands for perAFLP p rimer, the ratio of polymorphic rate varied from 0.3582 to 0.6296. UPGMA cluster analysis based on simp le matching coefficient (SM) divided the thirty variant types into twelve group s at 0.68 level. At DNA level, the results showed that the rich diversity inM. toringoides (Rehd. ) Hugheswas derived from the introgression of M. toringoides (Rehd. )
Hughes with M. transitoria Schneid. and M. kansuensis Rehd.

Key words: Malus toringoides, AFLP, Genetic diversity, Cluster analysis

Shi Shengyou;Cheng Minghao;Liang Guolu;Guo Qigao;Li Xiaolin;Zhou Zhiqin. Genetic Diversity of Malus toringoides ( Rehd. ) Hughes Based on AFLP[J]. ACTA HORTICULTURAE SINICA, 2006, 33(2): 381-384.

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Genetic Diversity of Malus toringoides ( Rehd. ) Hughes Based on AFLP

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