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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
18/05/1998 |
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Data da última atualização: |
27/01/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BUSO, G. S. C.; RANGEL, P. H.; FERREIRA, M. E. |
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Afiliação: |
PAULO HIDEO NAKANO RANGEL, CNPAF. |
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Título: |
Analysis of genetic variability of South American wild rice populations (Oryza glumaepatula) with isozymes and RAPD markers. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Molecular Ecology, v. 7, n. 1, p. 107-117, Jan. 1998. |
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DOI: |
10.1046/j.1365-294x.1998.00321.x |
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Idioma: |
Inglês |
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Conteúdo: |
The knowledge of population structure and genetic diversity of wild relatives of rice is needed to investigate their evolutionary history and potential use in breeding programs. Very little is known about the wild rice species (Oryza spp.), particularly those that are native to South America. A study using isozyme and RAPD markers was conducted to estimate the level of genetic diversity of four South American wild rice populations (Oryza glumaepatula) recently collected in the Amazon forest and western Brazil rivers. F‐statistics and genetic diversity parameters calculated from isozyme and RAPD markers indicated high values for inbreeding coefficients and differentiation among the four populations. In agreement with this, a pattern of greater variation between than within populations was observed with both types of markers. These findings were corroborated by an AMOVA analysis, which indicated that a large portion of the total genetic variation was attributed to regional divergence. The partition of the AMOVA analysis among populations showed that most of the genetic diversity was due to differences among populations. This distribution pattern of genetic variation of O. glumaepatula populations is in agreement with the expectation for an autogamous species and provides important baseline data for conservation and collection strategies for this species. |
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Palavras-Chave: |
AMOVA; Isozyme; RAPD. |
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Thesagro: |
Arroz; Genética; Oryza Sativa; População. |
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Thesaurus Nal: |
genetics; population; rice. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02166naa a2200277 a 4500
001 1204791
005 2020-01-27
008 1998 bl uuuu u00u1 u #d
024 7 $a10.1046/j.1365-294x.1998.00321.x$2DOI
100 1 $aBUSO, G. S. C.
245 $aAnalysis of genetic variability of South American wild rice populations (Oryza glumaepatula) with isozymes and RAPD markers.$h[electronic resource]
260 $c1998
520 $aThe knowledge of population structure and genetic diversity of wild relatives of rice is needed to investigate their evolutionary history and potential use in breeding programs. Very little is known about the wild rice species (Oryza spp.), particularly those that are native to South America. A study using isozyme and RAPD markers was conducted to estimate the level of genetic diversity of four South American wild rice populations (Oryza glumaepatula) recently collected in the Amazon forest and western Brazil rivers. F‐statistics and genetic diversity parameters calculated from isozyme and RAPD markers indicated high values for inbreeding coefficients and differentiation among the four populations. In agreement with this, a pattern of greater variation between than within populations was observed with both types of markers. These findings were corroborated by an AMOVA analysis, which indicated that a large portion of the total genetic variation was attributed to regional divergence. The partition of the AMOVA analysis among populations showed that most of the genetic diversity was due to differences among populations. This distribution pattern of genetic variation of O. glumaepatula populations is in agreement with the expectation for an autogamous species and provides important baseline data for conservation and collection strategies for this species.
650 $agenetics
650 $apopulation
650 $arice
650 $aArroz
650 $aGenética
650 $aOryza Sativa
650 $aPopulação
653 $aAMOVA
653 $aIsozyme
653 $aRAPD
700 1 $aRANGEL, P. H.
700 1 $aFERREIRA, M. E.
773 $tMolecular Ecology$gv. 7, n. 1, p. 107-117, Jan. 1998.
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