Population Genetics Of Collisella Subrugosa (patellogastropoda: Acmaeidae): Evidence Of Two Scales Of Population Structure.

dc.creatorJosé, Juliana
dc.creatorSolferini, Vera Nisaka
dc.date2007-May
dc.date2015-11-27T13:09:52Z
dc.date2015-11-27T13:09:52Z
dc.date.accessioned2018-03-29T01:04:27Z
dc.date.available2018-03-29T01:04:27Z
dc.identifierGenetica. v. 130, n. 1, p. 73-82, 2007-May.
dc.identifier0016-6707
dc.identifier10.1007/s10709-006-0024-3
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/16897456
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/197195
dc.identifier16897456
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1297428
dc.descriptionMarine invertebrate populations usually show high levels of genetic variability that has frequently been associated with spatial and temporal environmental heterogeneity. One of the most heterogeneous marine environments is the intertidal zone, the habitat of Collisella subrugosa, the most widespread and abundant Brazilian limpet. C. subrugosa has planktonic larvae that can disperse over long distances, what can promote gene flow among shores, working against interpopulational differentiation. In this study we investigated the genetic variability and populational substructure of C. subrugosa through analysis of 24 allozyme loci in 14 samples (590 individuals) collected along 2,700 km of the Brazilian coast. The genetic variability was high ([Formula: see text] and [Formula: see text]), as expected for intertidal species. Genetic differentiation among samples was low (F (ST) = 0.03) what may reflect intensive gene flow associated with larval dispersal. However, we detected an isolation-by-distance pattern of population substructure in one sampled region. High levels of heterozygote deficiency were also observed for many loci in each sample. Alternative hypothesis are discussed, and the breeding groups is suggested to explain these pattern, indicating the main cause as environmental heterogeneity.
dc.description130
dc.description73-82
dc.languageeng
dc.relationGenetica
dc.relationGenetica
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectAnimals
dc.subjectBrazil
dc.subjectGastropoda
dc.subjectGenetic Speciation
dc.subjectGenetic Variation
dc.subjectGenetics, Population
dc.titlePopulation Genetics Of Collisella Subrugosa (patellogastropoda: Acmaeidae): Evidence Of Two Scales Of Population Structure.
dc.typeArtículos de revistas


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