Data/hora: 01/06/2024 04:25:36

Biblioteca(s): | Embrapa Arroz e Feijão.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 2
Data corrente: | 17/02/2016
Data da última atualização: | 11/03/2016
Autoria: | ABREU, A. G. de; ROSA, T. M.; BORBA, T. C. de O.; VIANELLO, R. P.; RANGEL, P. H. N.; BRONDANI, C.
Afiliação: | ALUANA GONCALVES DE ABREU, CNPAF; THALITA MARRA ROSA, PUC, Goiânia-GO; TEREZA CRISTINA DE OLIVEIRA BORBA, CNPAF; ROSANA PEREIRA VIANELLO, CNPAF; PAULO HIDEO NAKANO RANGEL, CNPAF; CLAUDIO BRONDANI, CNPAF.
Título: | SSR characterization of Oryza glumaepatula populations from the Brazilian Amazon and Cerrado biomes.
Ano de publicação: | 2015
Fonte/Imprenta: | Genetica, The Hague, v. 143, n. 4, p. 413-423, Aug. 2015.
DOI: | 10.1007/s10709-015-9840-7
Idioma: | Inglês
Conteúdo: | The level and distribution of the genetic variability in 18 natural populations of Oryza glumaepatula that were collected from two Brazilian states were estimated using a set of 23 highly informative SSR markers. Samples comprising 78 and 117 individuals from populations of the states of Tocantins and Roraima, respectively, were evaluated in order to integrate and support previous studies that were carried out with populations of O. glumaepatula from Brazil. A total of 189 alleles were identified with an average of 8.22 alleles per locus. The 11 populations from Roraima presented, in combination, a higher genetic diversity (HE = 0.245) compared with that of the seven populations from Tocantins (HE = 0.212). All of the populations showed high and significant inbreeding values (mean f = 0.59); however, the mean was higher in Tocantins populations, indicating a higher gene flow in Roraima populations. The overall coefficient of genetic differentiation (FST) among the populations was high and significant (0.59) and was higher in Tocantins due to the isolation of each population, in contrast to Roraima, where gene flow occurred more frequently. The SSR panel used in this work resulted to be informative (polymorphism information content = 0.201) for assessing genetic structure in O. glumaepatula populations.
Palavras-Chave: | Microsatélite; Oryza glumaepatula; Wild Oryza species.
Thesagro: | Cerrado; Marcador genético; Marcador molecular; Recurso genético; Variação genética.
Thesaurus Nal: | Genetic resources; Genetic variation; Microsatellite repeats; Population genetics.
Categoria do assunto: | S Ciências Biológicas
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (33922-1) - UPC - AP - DD - 2015 -  - 2015 - DIS