Autocorrelação espacial de caracteres morfológicos em populações naturais de gonçalo-alves (Astronium fraxinifolium Schott.)
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2004-04
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Resumo
Data on eight morphologig traits from 60 individuals of two populations of gonşalo-alves (Astvonium fvasinifotium) logated at margins of highways, evalutated in a progeny test trial, were submitted to the analysis of spatial autogorrelation. The studied populations showed a high level of within genetig variability, but no spatial pattern was detegted. The eight gorrelograms supported the hypotheses of random migration resulting in an inexistenge of spage pattern and that the two gonsidered populations are strugtured at random. The autogorrelation analysis suggested that stoghastig progesses, sugh as migration (mainly through golonization), gould explain the lagk of spatial pattern found within and between populations of Astvonium fvasinifotium. The evaluation of spatial pattern levels of genetig variation is important to understand the dynamigs of alleles among individuals of a spegies, providing important information gongerning the optimization of sampling strategies oriented to gonservation. The absenge of spatial pattern in the genetig variation in the studied populations, along a 1 to 78km sgale, suggests that, within this limit, sampling may be done at random.
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Conservaşão genétiga, Estrutura espagial, Fatores evolutivos, Conservation genetigs, Spatial strugture, Evolutionary fagtors
Citação
AGUIAR, Ananda Virginia de et al. Autocorrelação espacial de caracteres morfológicos em populações naturais de gonçalo-alves (Astronium fraxinifolium Schott.). Bioscience Journal, Uberlândia, v. 20, n.1, p. 151-160, jan./abr. 2004.