The Resistance Genetic Analysis and Tightly Linked Molecular Markers forZYMV-CH in Cucumber

ACTA HORTICULTURAE SINICA ›› 2006, Vol. 33 ›› Issue (5): 1001-1006.

• 研究论文 • Previous Articles Next Articles

The Resistance Genetic Analysis and Tightly Linked Molecular Markers forZYMV-CH in Cucumber

Luo Jianhua^{1, 2};Zhang Haiying^2*;Mao Aijun²;Zhang Feng²;Wang Yongjian²;Pu Tongliang¹

(¹Lanzhou University Life Science College, Lanzhou, Gansu 730000, China; ²National Engineering Research Center for Vegetables, Beijing 100089, China)

Received:2005-11-09 Revised:2006-07-27 Online:2006-10-25 Published:2006-10-25

Abstract

Abstract: The Chinese strain of zucchini yellow mosaic virus (ZYMV-CH) is a major disease in cucumbers. A RIL population of a cross between‘European 8’and‘Qiupeng’were used for virus resistance evaluations. The frequency distribution in cucumber RIL population for disease index involving resistance to the ZYMV-CH showed two peaks, which indicated that the resistance to this diseases was controlled by main gene, but some minor gene also had moderate effect. AFLP and BSA were adopted to identify DNA markers
linked to the resistance-related gene in the RIL6 population. Two markers, E-ACG/M-CAG-182 and E-ACG/M-CAG-180 were linked to it, and the genetic distanceswere 5 cM and 11 cM, respectively. The E-ACG/M-CAG-180 marker had transferred into a co-dominante SCAR marker ( SCAR3-109) , and the genetic distances was 11 cM. The result showed that this scarmarker could be useful in marker-assisted selection in ZYMV cucumber resistance beeding.

Key words: Cucumber, ZYMV-CH, Resistance gene, AFLP, SCAR

Luo Jianhua;;Zhang Haiying;Mao Aijun;Zhang Feng;Wang Yongjian;Pu Tongliang. The Resistance Genetic Analysis and Tightly Linked Molecular Markers forZYMV-CH in Cucumber[J]. ACTA HORTICULTURAE SINICA, 2006, 33(5): 1001-1006.

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The Resistance Genetic Analysis and Tightly Linked Molecular Markers forZYMV-CH in Cucumber

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