Data/hora: 19/06/2024 21:01:05

Biblioteca(s): | Embrapa Agroindústria Tropical; Embrapa Semiárido.
Data corrente: | 21/06/2017
Data da última atualização: | 21/06/2017
Autoria: | CELIN, E. F.; SILVA, F. D. da; OLIVEIRA, N. R. X. de; DIAS, R. de C. S.; ARAGAO, F. A. S. de.
Afiliação: | ELAINE FACCO CELIN; FRANCISCO DAVI DA SILVA; NADYLLA REGIS XAVIER DE OLIVEIRA; RITA DE CASSIA SOUZA DIAS, CPATSA; FERNANDO ANTONIO SOUZA DE ARAGAO, CNPAT.
Título: | Simple genetic inheritance conditions resistance to Liriomyza sativae in melon.
Ano de publicação: | 2017
Fonte/Imprenta: | Euphytica, v. 213, p. 101-111, may. 2017.
DOI: | 10.1007/s10681-017-1888-2
Idioma: | Inglês
Conteúdo: | The leafminer Liriomyza sativae (Diptera: Agromyzidae) stands out as the main plant health problem in melon in the Northeast region of Brazil, which is the main region for production and export of the fruit. Genetic resistance of plants is an important strategy in management of this pest. The plant BAGMEL 56-R was selected as a new source of resistance to L. sativae through antibiosis; this resistance is characterized by the death of larvae soon after they begin feeding on the leaf mesophyll; the result is leaf mines that are small and insignificant in terms of yield reduction. Lines with contrasting levels of resistance were obtained from the progenies of this source of resistance through successive self-pollinations, conducted by the pedigree breeding method. Through the segregation pattern of the progenies and the test cross, the genetic nature of resistance was determined; one gene with complete dominance conditions resistance. The name Liriomyza sativae resistance and the symbol Ls are suggested to represent this new gene. In addition, through a nonpreference test with lines in contrast for antibiosis and the susceptible hybrid ‘Goldex’, the presence of antixenosis was observed in this source of resistance. Probably, these different types of resistance in the source BAGMEL 56-R are associated with distinct defense mechanisms. Therefore, with this new source, introgression of resistance to L. sativae in elite lines or commercial hybrids of melon is possible.
Palavras-Chave: | Antibiose; Complete dominance; Domínio completo; Insect resistance; Resistência aos insetos.
Thesagro: | Cucumis Melo; Inseto; Liriomyza Sativae; Melão; Praga; Resistência; Resistência genética.
Thesaurus Nal: | Antibiosis; antixenosis.

Categoria do assunto:

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O Insetos e Entomologia

Registro original: | Embrapa Semiárido (CPATSA)

Exemplares:

CPATSA - (56649-1) - UPC - AP - DD -  -  -  - DIS
CNPAT - (15377-1) - UPC - AP - DD -  -  - 2018.024 - DIS