Genetic variation in a small bivalve along a retreating glacier fjord, King George Island, Antarctica.
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In: Revista de Biología Marina y Oceanografía, Vol. 56, No. 2, 31.12.2021, p. 151-156.
Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Genetic variation in a small bivalve along a retreating glacier fjord, King George Island, Antarctica.
AU - Muñoz-Ramirez, Carlos
AU - Beltrán-Concha, Maribel
AU - Pérez-Araneda, Karla
AU - Sands, Chester
AU - Barnes, David
AU - Roman-Gonzalez, Alejandro
AU - De Lecea, Ander
AU - Retallick, Katherine
AU - Van Landeghem, Katrien
AU - Sheen, Katy
AU - Gonnelli, Kelly
AU - Scourse, James D.
AU - Bascur, Miguel
AU - Brante, Antonio
N1 - research grants CONICYT-NERC project ICEBERGs (PII20150078) and CONICYT-FONDECYT Postdoctorado (3180331)
PY - 2021/12/31
Y1 - 2021/12/31
N2 - Climate change is strongly influencing regions of Antarctica but the consequences on microevolutionary processes have been little studied. Patterns of population genetic diversity were analysed in the Antarctic bivalve Nuculana inaequisculpta (Protobranchia: Nuculanidae) from a fjord with 70 years of documented climate-forced glacier retreat. Thirty-nine individuals from five sites at different distances from the glacier terminus were collected, and the COI gene was sequenced from each individual. No statistically significant genetic differentiation was found between sites nor a significant correlation between the proximity of glaciers and genetic diversity, suggesting a high dispersal capability and therefore, a planktonic larval stage for this species.
AB - Climate change is strongly influencing regions of Antarctica but the consequences on microevolutionary processes have been little studied. Patterns of population genetic diversity were analysed in the Antarctic bivalve Nuculana inaequisculpta (Protobranchia: Nuculanidae) from a fjord with 70 years of documented climate-forced glacier retreat. Thirty-nine individuals from five sites at different distances from the glacier terminus were collected, and the COI gene was sequenced from each individual. No statistically significant genetic differentiation was found between sites nor a significant correlation between the proximity of glaciers and genetic diversity, suggesting a high dispersal capability and therefore, a planktonic larval stage for this species.
KW - COI
KW - climate change
KW - dispersal capability
KW - Western Antarctic Peninsula
U2 - 10.22370/rbmo.2021.56.2.3059
DO - 10.22370/rbmo.2021.56.2.3059
M3 - Article
VL - 56
SP - 151
EP - 156
JO - Revista de Biología Marina y Oceanografía
JF - Revista de Biología Marina y Oceanografía
SN - 0717-3326
IS - 2
ER -