Data/hora: 07/06/2024 09:51:17

Provedor de dados: | 86
País: | Brazil
Título: | Genetic linkage maps of 'Pêra' sweet orange and 'Cravo' mandarin with RAPD markers
Autores: | Oliveira,Roberto Pedroso de; Cristofani,Mariângela; Machado,Marcos Antônio.
Data: | 2004-02-01
Ano: | 2004
Palavras-chave: | Citrus; Dominant markers; Molecular markers; Segregation; Breeding methods.
Resumo: | The objective of this work was to construct linkage maps of 'Pêra' sweet orange [Citrus sinensis (L.) Osbeck] and 'Cravo' mandarin (Citrus reticulata Blanco) using RAPD markers and the pseudo-testcross strategy. The parents were chosen according to the resistance/susceptibility to citrus variegate chlorosis (CVC). The segregation of 176 markers was analyzed in 94 progeny of F1 hybrids, which were obtained from controlled crossings. The linkage map of 'Pêra' sweet orange had 117 markers defined by 12 linkage groups, which spanned 612.1 cM. Only six markers could not be linked to the linkage group and 48.7% of the markers showed segregation distortion. The linkage map of 'Cravo' mandarin had 51 markers defined by 12 linkage groups, which spanned 353.3 cM. Only two markers did not link to the groups and 15.7% showed segregation distortion. The construction of linkage maps is relevant to future mapping studies of the inheritance of CVC, citrus canker and leprosis.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2004000200009

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/S0100-204X2004000200009
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.39 n.2 2004
Fonte: | info:eu-repo/semantics/openAccess