Artículo de revista
Cryptic speciation in Southern Ocean Aequiyoldia eightsii (Jay, 1839): Mio-Pliocene trans-Drake Passage separation and diversification
Fecha
2019Registro en:
Progress in Oceanography, Volumen 174,
00796611
10.1016/j.pocean.2018.09.004
Autor
González Wevar, Claudio
Gérard, Karin
Rosenfeld, Sebastian
Saucède, Thomas
Naretto, Javier
Díaz, Angie
Morley, Simon A.
Brickle, Paul
Poulin, Elie
Institución
Resumen
© 2018 Elsevier LtdThe species of the genus Aequiyoldia Soot-Ryen, 1951, previously known as Yoldia, are common, soft-substratum, sareptid bivalves. In the Southern Ocean, Aequiyoldia eightsii (Jay, 1839) was originally described from the Antarctic Peninsula and has also been reported in southern South America. The species A. woodwardi (Hanley, 1960) was reported for the Falkland/Malvinas Islands and Tierra del Fuego, but this taxon has been recently synonymised within the broadly distributed A. eightsii. Aequiyoldia has received little attention across its distribution in the Southern Ocean, and although its taxonomy and systematics remain uncertain, all the species have been grouped under a single and broadly distributed unit: A. eightsii. Nevertheless, preliminary mtDNA comparisons demonstrated a marked genetic divergence (>7%) between A. eightsii populations from South America and Antarctic Peninsula. In order to further understand the diversity and biogeography of Aequiyoldia, we