Please use this identifier to cite or link to this item: http://repositorio.ufpa.br/jspui/handle/2011/6562
metadata.dc.type: Artigo de Periódico
Issue Date: Oct-2008
metadata.dc.creator: VEASEY, Elizabeth Ann
CARDIN, Daruska
SILVA, Rainério Meireles
BRESSAN, Eduardo de Andrade
VENCOVSKY, Roland
Title: Assessing the genetic structure of Oryza glumaepatula populations with isozyme markers
Citation: 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.
Keywords: Plantas
Variação genética
Oryza glumaepatula
Isozima
Pantanal
Amazônia brasileira
ISSN: 1516-8913
metadata.dc.rights: Acesso Aberto
Appears in Collections:Artigos Científicos - CALTA

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