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Evolutionary Patterns in Pearl Oysters of the Genus Pinctada (Bivalvia: Pteriidae)
Provedor de dados: 5
Autores: Cunha, Regina L.; Blanc, Francoise; Bonhomme, Francois; Arnaud-haond, Sophie.
Pearl oysters belonging to the genus Pinctada (Bivalvia: Pteriidae) are widely distributed between the Indo-Pacific and western Atlantic. The existence of both widely distributed and more restricted species makes this group a suitable model to study diversification patterns and prevailing modes of speciation. Phylogenies of eight out of the 11 currently recognised Pinctada species using mitochondrial (cox1) and nuclear (18S rRNA) data yielded two monophyletic groups that correspond to shell size and presence/absence of hinge teeth. Character trace of these morphological characters onto the molecular phylogeny revealed a strong correlation. Pinctada margaritifera appears polyphyletic with specimens from Mauritius grouping in a different clade from others of...
Tipo: Text
Palavras-chave: Pinctada; Evolutionary patterns; Species complex; Allopatry; Biogeography.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00035/14635/14015.pdf