Genetic structure and gene flow of Eugenia dysenterica natural populations
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Data
2005-10
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Resumo
This study was carried out to assess the genetic variability of ten “cagaita” tree (Eugenia dysenterica)
populations in Southeastern Goiás. Fifty-four randomly amplified polymorphic DNA (RAPD) loci were used to
characterize the population genetic variability, using the analysis of molecular variance (AMOVA). A φST value
of 0.2703 was obtained, showing that 27.03% and 72.97% of the genetic variability is present among and within
populations, respectively. The Pearson correlation coefficient (r) among the genetic distances matrix (1 – Jaccard
similarity index) and the geographic distances were estimated, and a strong positive correlation was detected.
Results suggest that these populations are differentiating through a stochastic process, with restricted and
geographic distribution dependent gene flow.
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Palavras-chave
Myrtaceae, Cerrado, Tropical species, Genetic diversity, Myrtaceae, Espécies tropicais, Diversidade genética, Eugenia dysenterica
Citação
ZUCCHI, Maria Imaculada et al. Genetic structure and gene flow of Eugenia dysenterica natural populations. Pesquisa Agropecuária Brasileira, Brasília, v. 40, n.10, p. 975-980, Oct. 2005.