Molecular evidence of distinct evolutionary units in the sandhopper <i>Talorchestia capensis</i> (Amphipoda, Talitridae) along South African coasts

Simple item page
dc.contributor.authorBaldanzi, Simone
dc.contributor.authorGouws, Gavin
dc.contributor.authorBarker, Nigel P.
dc.contributor.authorFratini, Sara
dc.date.accessioned2025-01-23T21:28:47Z
dc.date.available2025-01-23T21:28:47Z
dc.date.issued2016
dc.description.abstractMarine geographical and ecological barriers often reflect intraspecific genetic discontinuities among populations which may experience different selective pressures and undergo evolutionary divergence. While the phylogeography of marine intertidal invertebrates across the Atlantic/Indian Ocean transition received more attention, the population genetic structures of supralittoral direct developers across such transition area have been poorly investigated. Sandhoppers are supralittoral invertebrates characterised by a direct developmental mode (low dispersal ability), and Talorchestia capensis (Amphipoda, Talitridae) represents the most abundant species of sandhoppers along the South African coasts. To define population structure of T. capensis, we used a mitochondrial marker (the cytochrome oxidase subunit I gene, COX1). T. capensis showed a clean population structure with three main haplogroups genetically well separated, although this separation is not perfectly in line with geographical boundaries described for this area. The presence of separate evolutionary significant units is also confirmed by the shape of mismatch distribution, as well as the p distance values among groups. The overall results confirm the importance of mtDNA to retrieve information on the evolutionary history of species. This study suggests the evidence of a complex-species for this sandhoppers, which have never been considered before, providing fundamental basis for further studies.
dc.fuente.origenWOS
dc.identifier.doi10.1007/s10750-016-2797-4
dc.identifier.eissn1573-5117
dc.identifier.issn0018-8158
dc.identifier.urihttps://doi.org/10.1007/s10750-016-2797-4
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/101414
dc.identifier.wosidWOS:000382045600003
dc.issue.numero1
dc.language.isoen
dc.pagina.final46
dc.pagina.inicio35
dc.revistaHydrobiologia
dc.rightsacceso restringido
dc.subjectmtDNA marker
dc.subjectCOX1
dc.subjectCryptic species
dc.subjectPopulation genetics
dc.subjectSandy-beach ecology
dc.titleMolecular evidence of distinct evolutionary units in the sandhopper <i>Talorchestia capensis</i> (Amphipoda, Talitridae) along South African coasts
dc.typeartículo
dc.volumen779
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Collections
Artículos de revistas