Phylogeography and genetic diversity of the microbivalve Kidderia subquadrata, reveals new data from West Antarctic Peninsula

Abstract It is well established that Antarctic biodiversity has been strongly influenced by rapid climatic fluctuations during the Quaternary. Marine invertebrates from Antarctica constitute an interesting lens through which to study the impacts of the last glacial periods as glaciation impacted the...

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Autores principales:	Daniela Levicoy, Kamilla Flores, Sebastián Rosenfeld, Leyla Cárdenas
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/10e3834fb6824bde836303a210f5e717
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spelling	oai:doaj.org-article:10e3834fb6824bde836303a210f5e7172021-12-02T13:20:20ZPhylogeography and genetic diversity of the microbivalve Kidderia subquadrata, reveals new data from West Antarctic Peninsula10.1038/s41598-021-85042-72045-2322https://doaj.org/article/10e3834fb6824bde836303a210f5e7172021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85042-7https://doaj.org/toc/2045-2322Abstract It is well established that Antarctic biodiversity has been strongly influenced by rapid climatic fluctuations during the Quaternary. Marine invertebrates from Antarctica constitute an interesting lens through which to study the impacts of the last glacial periods as glaciation impacted the distribution and intraspecific genetic variation of these animals. However, the impact on the spatial genetic distribution and historical demography of local processes in areas adjacent to the West Antarctic Peninsula (WAP) is less clear. Here we present new genetic information on the bivalve Kidderia subquadrata, a small mollusk that inhabits intertidal rocky island ecosystems throughout the WAP. Using a phylogeographical approach, we examined the spatial patterns of genetic diversity in this brooder species to test the hypothesis of strong genetic structure in incubating organisms and the hypothesis of glacial refugia in organisms with limited dispersion. We found evidence of strong genetic structure among populations of the WAP and a recent expansion in the South Shetland Islands. Our findings are concordant with the predictions that incubating organisms, abundant in Antarctica, present a strong genetic structure among their populations and also support the hypothesis of glacial refugia in organisms with limited dispersion. The effect of the coastal current pattern in the WAP is suggested as a driver to the local spatial dynamics of the genetic diversity distribution. Although genetic information about this microbivalve is still scarce, the knowledge reported here has increased our understanding of the evolutionary patterns of this organism that is endemic to the Southern Ocean.Daniela LevicoyKamilla FloresSebastián RosenfeldLeyla CárdenasNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Daniela Levicoy Kamilla Flores Sebastián Rosenfeld Leyla Cárdenas Phylogeography and genetic diversity of the microbivalve Kidderia subquadrata, reveals new data from West Antarctic Peninsula
description	Abstract It is well established that Antarctic biodiversity has been strongly influenced by rapid climatic fluctuations during the Quaternary. Marine invertebrates from Antarctica constitute an interesting lens through which to study the impacts of the last glacial periods as glaciation impacted the distribution and intraspecific genetic variation of these animals. However, the impact on the spatial genetic distribution and historical demography of local processes in areas adjacent to the West Antarctic Peninsula (WAP) is less clear. Here we present new genetic information on the bivalve Kidderia subquadrata, a small mollusk that inhabits intertidal rocky island ecosystems throughout the WAP. Using a phylogeographical approach, we examined the spatial patterns of genetic diversity in this brooder species to test the hypothesis of strong genetic structure in incubating organisms and the hypothesis of glacial refugia in organisms with limited dispersion. We found evidence of strong genetic structure among populations of the WAP and a recent expansion in the South Shetland Islands. Our findings are concordant with the predictions that incubating organisms, abundant in Antarctica, present a strong genetic structure among their populations and also support the hypothesis of glacial refugia in organisms with limited dispersion. The effect of the coastal current pattern in the WAP is suggested as a driver to the local spatial dynamics of the genetic diversity distribution. Although genetic information about this microbivalve is still scarce, the knowledge reported here has increased our understanding of the evolutionary patterns of this organism that is endemic to the Southern Ocean.
format	article
author	Daniela Levicoy Kamilla Flores Sebastián Rosenfeld Leyla Cárdenas
author_facet	Daniela Levicoy Kamilla Flores Sebastián Rosenfeld Leyla Cárdenas
author_sort	Daniela Levicoy
title	Phylogeography and genetic diversity of the microbivalve Kidderia subquadrata, reveals new data from West Antarctic Peninsula
title_short	Phylogeography and genetic diversity of the microbivalve Kidderia subquadrata, reveals new data from West Antarctic Peninsula
title_full	Phylogeography and genetic diversity of the microbivalve Kidderia subquadrata, reveals new data from West Antarctic Peninsula
title_fullStr	Phylogeography and genetic diversity of the microbivalve Kidderia subquadrata, reveals new data from West Antarctic Peninsula
title_full_unstemmed	Phylogeography and genetic diversity of the microbivalve Kidderia subquadrata, reveals new data from West Antarctic Peninsula
title_sort	phylogeography and genetic diversity of the microbivalve kidderia subquadrata, reveals new data from west antarctic peninsula
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/10e3834fb6824bde836303a210f5e717
work_keys_str_mv	AT danielalevicoy phylogeographyandgeneticdiversityofthemicrobivalvekidderiasubquadratarevealsnewdatafromwestantarcticpeninsula AT kamillaflores phylogeographyandgeneticdiversityofthemicrobivalvekidderiasubquadratarevealsnewdatafromwestantarcticpeninsula AT sebastianrosenfeld phylogeographyandgeneticdiversityofthemicrobivalvekidderiasubquadratarevealsnewdatafromwestantarcticpeninsula AT leylacardenas phylogeographyandgeneticdiversityofthemicrobivalvekidderiasubquadratarevealsnewdatafromwestantarcticpeninsula
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Phylogeography and genetic diversity of the microbivalve Kidderia subquadrata, reveals new data from West Antarctic Peninsula

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