Data/hora: 06/06/2024 14:11:50

Biblioteca(s): | Embrapa Arroz e Feijão; Embrapa Unidades Centrais.
Data corrente: | 12/06/2013
Data da última atualização: | 28/02/2019
Autoria: | RANGEL, P. N.; VIANELLO, R. P.; MELO, A. T. O.; RANGEL, P. H. N.; MENDONÇA, J. A.; BRONDANI, C.
Afiliação: | PRISCILA NASCIMENTO RANGEL; ROSANA PEREIRA VIANELLO, CNPAF; ARTHUR TAVARES OLIVEIRA MELO; PAULO HIDEO NAKANO RANGEL, CNPAF; JOAO ANTONIO MENDONCA, CNPAF; CLAUDIO BRONDANI, CNPAF.
Título: | Yield QTL analysis of Oryza sativa x O. glumaepatula introgression lines.
Ano de publicação: | 2013
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 48, n. 3, p. 280-286, mar. 2013.
ISSN: | 0100-204X
DOI: | 10.1590/S0100-204X2013000300006
Idioma: | Inglês
Conteúdo: | The objective of this work was to evaluate the yield performance of two generations (BC2F2 and BC2F9) of introgression lines developed from the interspecific cross between Oryza sativa and O. glumaepatula, and to identify the SSR markers associated to yield. The wild accession RS&#8209;16 (O. glumaepatula) was used as donor parent in the backcross with the high yielding cultivar Cica&#8209;8 (O. sativa). A set of 114 BC2F1 introgression lines was genotyped with 141 polymorphic SSR loci distributed across the whole rice genome. Molecular analysis showed that in average 22% of the O. glumaepatula genome was introgressed into BC2F1 generation. Nine BC2F9 introgression lines had a significantly higher yield than the genitor Cica&#8209;8, thus showing a positive genome interaction among cultivated rice and the wild O. glumaepatula. Seven QTL were identified in the overall BC2F2, with one marker interval (4879&#8209;EST20) of great effect on yield. The alleles with positive effect on yield came from the cultivated parent Cica&#8209;8.
Palavras-Chave: | AB-QTL; Base genética; Desempenho produtivo; Genetic pool; Oryza glumaepatula; Região-alvo do genoma; Target genome region; Yield performance.
Thesagro: | Arroz; Marcador molecular; Melhoramento; Melhoramento genético vegetal; Oryza sativa.
Thesaurus Nal: | Breeding; Genetic markers; Quantitative trait loci; Rice.

Categoria do assunto:

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S Ciências Biológicas

URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/85167/1/Yield-QTL-analysis.pdf
Registro original: | Embrapa Arroz e Feijão (CNPAF)

Exemplares:

CNPAF - (32106-1) - UPC - AP - DD - 2013 -  - 2013 - DIS
AI-SEDE - (54815-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS