Título:	Genetic control of resistance on Mangifera indica to Ceratocystis wilt.
Autoria:	ARRIELA, D. A. A. GUIMARÃES, L. M. da S. RESENDE, M. D. V. de LIMA NETO, F. P. SILVA, D. F. S. H. S. SIQUEIRA, D. L. de ALFENAS, A. C.
Afiliação:	Daniele Aparecida Alvarenga Arriela, Graduate Program in Genetics and Breeding, UFV; Lúcio Mauro da Silva Guimarães, UFV; MARCOS DEON VILELA DE RESENDE, CNPF; FRANCISCO PINHEIRO LIMA NETO, CPATSA; Daniella Flávia Said Heid Schettini Silva, UFV; Dalmo Lopes de Siqueira, UFV; Acelino Couto Alfenas, UFV.
Ano de publicação:	2016
Referência:	Scientia Horticulturae, v. 211, p. 312-318, Nov. 2016.
Conteúdo:	Ceratocystis wilt, caused by Ceratocystis fimbriata is one of the most serious limiting factors for mango production in Brazil. Despite efforts in the selection and the identification of mango cultivars resistant to Ceratocystis wilt, the genetic basis of the resistance remains unknown. Therefore, the objective of this study was to understand the inheritance of resistance to C. fimbriata by artificial inoculations of the pathogen in progenies of six commercial varieties of mango using ?Tommy Atkins? as the male parent. The cultivars ?Keitt?, ?Palmer?, ?Tommy Atkins? and ?Van Dyke? were confirmed as moderately resistant, whereas ?Coquinho?, ?Espada? and ?Haden? were susceptible. The results of the inoculation on the progenies of these cultivars revealed that the resistance in mango is polygenic with a prevalence of genes expressing the effects of dominance and epistasis. The genetic gain with the selection of the 10 more resistant plants was 46%, which indicated a 46% reduction in disease severity. In general, a low frequency of the alleles favorable to disease resistance was observed in the population studied, which suggests the need for the introduction of new sources of genetic materials carrying the genes responsible for resistance.
Thesagro:	Manga Doença de planta Fungo Mangifera Indica
NAL Thesaurus:	Plant diseases and disorders
Palavras-chave:	Espécie exótica Ceratocystis wilt
ISSN:	0304-4238
Digital Object Identifier:	http://dx.doi.org/10.1016/j.scienta.2016.09.001
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPATSA)