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Development of molecular markers linked to Cladosporium fulvum resistant genes Cf-11 by AFLP

Xiangyang Xu

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Abstract

Resistance to race 1.2.3.4 of Cladosporium fulvum was due to a single dominant gene through crossing HN16(susceptible) with HN42(resistant). The results indicated that the difference of two parents resistance was obvious, the male parent HN42 showed resistant and the female parent HN16 was susceptible. The ratio of resistance and susceptibility of F2 population was 3.17:1.00, accorded with the ratio of 3:1. The results showed the resistance to Cladosporium fulvum was controlled by one dominant gene. Four AFLP markers linked to the resistant gene Cf-11 were identified. The genetic distances of four AFLP markers, E54M37-G, E62M61-A, E85M79-D and E62M59-G, and Cf-11 gene were 10.1, 12.3, 14.5 and 18.8 cM.

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What this paper is about

Resistance to race 1.2.3.4 of Cladosporium fulvum was due to a single dominant gene through crossing HN16(susceptible) with HN42(resistant). The results indicated that the difference of two parents resistance was obvious, the male parent HN42 showed resistant and the female parent HN16 was susceptible. The ratio of resistance and susceptibility of F2 population was 3.17:1.00, accorded with the ratio of 3:1. The results showed the resistance to Cladosporium fulvum was controlled by one dominant gene. Four AFLP markers linked to the resistant gene Cf-11 were identified. The genetic distances of four AFLP markers, E54M37-G, E62M61-A, E85M79-D and E62M59-G, and Cf-11 gene were 10.1, 12.3, 14.5 and 18.8 cM.

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Available abstract

Resistance to race 1.2.3.4 of Cladosporium fulvum was due to a single dominant gene through crossing HN16(susceptible) with HN42(resistant). The results indicated that the difference of two parents resistance was obvious, the male parent HN42 showed resistant and the female parent HN16 was susceptible. The ratio of resistance and susceptibility of F2 population was 3.17:1.00, accorded with the ratio of 3:1. The results showed the resistance to Cladosporium fulvum was controlled by one dominant gene. Four AFLP markers linked to the resistant gene Cf-11 were identified. The genetic distances of four AFLP markers, E54M37-G, E62M61-A, E85M79-D and E62M59-G, and Cf-11 gene were 10.1, 12.3, 14.5 and 18.8 cM.

Key concepts: Cladosporium, Amplified fragment length polymorphism, Biology, Genetics, Gene, Population, Genetic diversity, Penicillium

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