Use este identificador para citar ou linkar para este item:
https://repositorio.ufpa.br/jspui/handle/2011/6562
Tipo: | Artigo de Periódico |
Data do documento: | Out-2008 |
Autor(es): | VEASEY, Elizabeth Ann CARDIM, Daruska Cavalcante SILVA, Rainério Meireles da BRESSAN, Eduardo de Andrade VENCOVSKY, Roland |
Título: | Assessing the genetic structure of Oryza glumaepatula populations with isozyme markers |
Citar como: | VEASEY, Elizabeth Ann et al. Assessing the genetic structure of Oryza glumaepatula populations with isozyme markers. Brazilian Archives of Biology and Technology, Curitiba, v. 51, n. 5, p. 873-882, set./out. 2008. Disponível em: <http://www.scielo.br/pdf/babt/v51n5/a01v51n5.pdf>. Acesso em: 20 abr. 2015. <http://dx.doi.org/10.1590/S1516-89132008000500001>. |
Abstract: | To assess the genetic diversity and genetic structure parameters, nine populations of Oryza glumaepatula from the Amazon biome, four from the Pantanal biome, and one collected at Rio Xingu, Mato Grosso, totaling 14 populations and 333 individuals were studied with isozyme markers. Six loci were evaluated showing a moderate allozyme variability (A = 1.21, P = 20.7%, Ho = 0.005, He = 0.060). The populations from the Pantanal biome showed higher diversity levels than the Amazon biome. High genetic differentiation among the populations, expected for self-fertilizing species, was observed (FST=0.763), with lower differentiation found among the Pantanal populations (FST=0.501). The average apparent outcrossing rate was higher for the Pantanal populations (ta = 0.092) than for the Amazonian populations (ta = 0.003), while the average for the 14 populations was 0.047, in accordance with a self-fertilization mating system. |
Palavras-chave: | Plantas Variação genética Oryza glumaepatula Isozima Pantanal Amazônia brasileira |
ISSN: | 1516-8913 |
Tipo de Acesso: | Acesso Aberto |
Aparece nas coleções: | Artigos Científicos - CALTA |
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