Data/hora: 21/06/2024 03:38:31

Biblioteca(s): | Embrapa Arroz e Feijão.
Tipo da produção científica: | Artigo em Periódico Indexado
Data corrente: | 12/02/2004
Data da última atualização: | 29/04/2022
Autoria: | BRONDANI, C.; RANGEL, P. H. N.; BRONDANI, R. P. V.; FERREIRA, M. E.
Afiliação: | CLAUDIO BRONDANI, CNPAF; PAULO HIDEO NAKANO RANGEL, CNPAF; ROSANA PEREIRA VIANELLO, CNPAF; MARCIO ELIAS FERREIRA, CENARGEN.
Título: | QTL mapping and introgression of yield-related traits from Oryza glumaepatula to cultivated rice (Oryza sativa) using microsatellite markers.
Ano de publicação: | 2002
Fonte/Imprenta: | Theoretical and Applied Genetics, v. 104, n. 6/7, p. 1192-1203, May 2002.
DOI: | https://doi.org/10.1007/s00122-002-0869-5
Idioma: | Inglês
Conteúdo: | Rice (Oryza sativa) cultivar development currently faces the task of overcoming yield plateaus, which is difficult due to the narrow genetic base of breeding programs. Oryza glumaepatula is a diploid wild relative of cultivated rice, native to Central and South America, and is therefore a potential source of alleles of agronomic importance to rice breeding programs. We studied 11 agronomic traits in BC2F2 families of the interspecific cross Oryza sativa x O. glumaepatula. Transgressive lines which are almost isogenic to the elite recurrent O. sativa parent were identified for most of these traits. Quantitative trait locus (QTL) analysis was performed by single-point and interval mapping using a molecular map based on 157 microsatellite and STS markers. Marker regions accounting for 14.5 to 72.9% of a phenotypic variation trait were identified in 9 of the 12 rice chromosomes. Positive QTL effects from O. glumaepatula were observed in chromosomal regions associated with tillering and panicle-number traits.
Palavras-Chave: | Microsatellite markers; Oryza glumaepatula; QTL analysis.
Thesagro: | Arroz; Marcador Molecular; Oryza Sativa.
Thesaurus Nal: | rice.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (20938-1) - UPC - AP - DD - 2002 -  - 2002 - DIS