Publications by authors named "Allyson Santos de Souza"

Fishes of the genus (Acanthuridae) are strongly related to reef environments, in a broad biogeographic context worldwide. Although their biological aspects are well known, cytogenetic information related to this genus remains incipient. In this study, species from populations inhabiting coastal regions of the Southwest Atlantic (SWA), South Atlantic oceanic islands (Fernando de Noronha Archipelago and Trindade Island), Greater Caribbean (GC), and Indo-Pacific Ocean (the center of the origin of the group) were analyzed to investigate their evolutionary differentiation.

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Wrasses (Labridae) are extremely diversified marine fishes, whose species exhibit complex interactions with the reef environment. They are widely distributed in the Indian, Pacific and Atlantic oceans. Their species have displayed a number of karyotypic divergent processes, including chromosomal regions with complex structural organization.

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Article Synopsis
  • Research focuses on the connectivity of Brazilian reef fish populations, specifically the damselfish Chromis multilineata, between mainland shores and oceanic islands.
  • Data analysis of mtDNA sequences reveals three genetically distinct population groups along Brazil's northeast coast and around remote islands, with the highest genetic divergence found in the Saint Peter and Saint Paul Archipelago.
  • Findings suggest a higher level of genetic structure than previously thought, highlighting complex interactions between insular and coastal fish populations.
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