Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/23242
Tipo: Artigo
Título: The inheritance of late blight resistance derived from Solanum habrochaites
Autor(es): Elsayed, Ahmed Youssef
Silva, Derly José Henriques da
Carneiro, Pedro Crescêncio Souza
Mizubuti, Eduardo Seiti Gomide
Abstract: Late blight caused by the oomycete Phytophthora infestans is a destructive disease of tomato in Brazil and other tropical and subtropical regions. The purpose of the present study was to analyses the inheritance of resistance to late blight and determine the genetic factors contributing to the resistance in the inbred line in ‘163A’. The Line ‘163A’ resulted from interspecific cross between Solanum lycopersicum and S. habrochaites f. glabratum. Inoculated field with mixture isolates of pathogen with 1000 spores mL -1 and naturally infested field trials showed that the expression of ‘163A’ against multiple isolates of the pathogen was stable. The genetic analysis supported the hypothesis of two recessive genes controlling the resistance. The scaling test of additive-dominance model showed that is a good fit for the data confirming the absence or neglect of epistasis.
Palavras-chave: Solanum lycopersicum
Phytophthora infestans
Recessive
Inheritance
Editor: Crop Breeding and Applied Biotechnology
Tipo de Acesso: Open Access
URI: http://dx.doi.org/10.1590/S1984-70332012000300006
http://www.locus.ufv.br/handle/123456789/23242
Data do documento: Set-2012
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