Data/hora: 05/06/2024 09:14:00

Biblioteca(s): | Embrapa Florestas; Embrapa Semiárido.
Data corrente: | 18/01/2017
Data da última atualização: | 16/02/2017
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.
Título: | Genetic control of resistance on Mangifera indica to Ceratocystis wilt.
Ano de publicação: | 2016
Fonte/Imprenta: | Scientia Horticulturae, v. 211, p. 312-318, Nov. 2016.
ISSN: | 0304-4238
DOI: | http://dx.doi.org/10.1016/j.scienta.2016.09.001
Idioma: | Inglês
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.
Palavras-Chave: | Ceratocystis wilt; Espécie exótica.
Thesagro: | Doença de planta; Fungo; Manga; Mangifera Indica.
Thesaurus Nal: | Plant diseases and disorders.
Categoria do assunto: | H Saúde e Patologia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/155901/1/Pinheiro-Neto.pdf
Registro original: | Embrapa Semiárido (CPATSA)

Exemplares:

CNPF - (55561-1) - UPC - AP - DD -  -  -  - DIS
CPATSA - (56300-1) - UPC - AP - DD -  -  -  - DIS