Comparative phylogeography reveals consistently shallow genetic diversity in a mitochondrial marker in Antarctic bdelloid rotifers
Aim The long history of isolation of the Antarctic continent, coupled with the harsh ecological conditions of freezing temperatures, could affect the patterns of genetic diversity in the organisms living there. We aim (a) to test whether such pattern can be seen in a mitochondrial marker of bdelloid...
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ftlithuaniansrc:oai:elaba:92252167 2023-05-15T13:59:35+02:00 Comparative phylogeography reveals consistently shallow genetic diversity in a mitochondrial marker in Antarctic bdelloid rotifers Cakil, Zeyneb Vildan Garlasche, Giuseppe Iakovenko, Nataliia Di Cesare, Andrea Eckert, Ester M. Guidetti, Roberto Hamdan, Lina Janko, Karel Lukashanets, Dzmitry Rebecchi, Lorena Schiaparelli, Stefano Sforzi, Tommaso Štefková Kašparová, Eva Velasco‐Castrillón, Alejandro Walsh, Elizabeth J. Fontaneto, Diego 2021 http://ku.lvb.lt/KU:ELABAPDB92252167&prefLang=en_US eng eng info:eu-repo/semantics/altIdentifier/doi/10.1111/jbi.14116 http://ku.lvb.lt/KU:ELABAPDB92252167&prefLang=en_US Journal of biogeography, Hoboken : Wiley, 2021, vol. 48, no. 7, p. 1797-1809 ISSN 0305-0270 eISSN 1365-2699 diversification endemism meiofauna polar regions population genetics Rotifera info:eu-repo/semantics/article 2021 ftlithuaniansrc https://doi.org/10.1111/jbi.14116 2021-12-02T01:13:46Z Aim The long history of isolation of the Antarctic continent, coupled with the harsh ecological conditions of freezing temperatures, could affect the patterns of genetic diversity in the organisms living there. We aim (a) to test whether such pattern can be seen in a mitochondrial marker of bdelloid rotifers, a group of microscopic aquatic and limno‐terrestrial animals and (b) to speculate on the potential mechanisms driving the pattern. Location Focus on Antarctica. Taxon Rotifera Bdelloidea. Methods We analysed different metrics of genetic diversity, also spatially explicit ones, including number of haplotypes, accumulation curves, genetic distances, time to the most recent common ancestor, number of independently evolving units from DNA taxonomy, strength of the correlation between geographical and genetic distances, population genetics neutrality and differentiation indices, potential historical processes, obtained from an extensive sample of cytochrome oxidase subunit I (COI) sequences obtained from bdelloid rotifers. We included 2242 individuals from 23 species in a comparison between Antarctic and non‐Antarctic taxa, correcting for sample size directly in the analyses and then by confirming the results also using only a restricted dataset of nine well‐sampled species. Results Antarctic species had consistently lower genetic diversity and potential younger relative age than non‐Antarctic species, even if they were similar in sample size, geographical extent, neutrality and differentiation indices, and correlation between genetic and geographical distances. Main conclusions The extensive survey of genetic diversity in one mitochondrial marker in Antarctic bdelloids supports previous suggestions from other organisms that the origin and maintenance of terrestrial Antarctic fauna are different from those of other continents. Such differences could be speculated to be due, in the case of bdelloid rotifers, to the more recent origin of the species living there in comparison to non‐Antarctic species. Article in Journal/Newspaper Antarc* Antarctic Antarctica LSRC VL (Lithuanian Social Research Centre Virtual Library) Antarctic The Antarctic Journal of Biogeography 48 7 1797 1809 |
institution |
Open Polar |
collection |
LSRC VL (Lithuanian Social Research Centre Virtual Library) |
op_collection_id |
ftlithuaniansrc |
language |
English |
topic |
diversification endemism meiofauna polar regions population genetics Rotifera |
spellingShingle |
diversification endemism meiofauna polar regions population genetics Rotifera Cakil, Zeyneb Vildan Garlasche, Giuseppe Iakovenko, Nataliia Di Cesare, Andrea Eckert, Ester M. Guidetti, Roberto Hamdan, Lina Janko, Karel Lukashanets, Dzmitry Rebecchi, Lorena Schiaparelli, Stefano Sforzi, Tommaso Štefková Kašparová, Eva Velasco‐Castrillón, Alejandro Walsh, Elizabeth J. Fontaneto, Diego Comparative phylogeography reveals consistently shallow genetic diversity in a mitochondrial marker in Antarctic bdelloid rotifers |
topic_facet |
diversification endemism meiofauna polar regions population genetics Rotifera |
description |
Aim The long history of isolation of the Antarctic continent, coupled with the harsh ecological conditions of freezing temperatures, could affect the patterns of genetic diversity in the organisms living there. We aim (a) to test whether such pattern can be seen in a mitochondrial marker of bdelloid rotifers, a group of microscopic aquatic and limno‐terrestrial animals and (b) to speculate on the potential mechanisms driving the pattern. Location Focus on Antarctica. Taxon Rotifera Bdelloidea. Methods We analysed different metrics of genetic diversity, also spatially explicit ones, including number of haplotypes, accumulation curves, genetic distances, time to the most recent common ancestor, number of independently evolving units from DNA taxonomy, strength of the correlation between geographical and genetic distances, population genetics neutrality and differentiation indices, potential historical processes, obtained from an extensive sample of cytochrome oxidase subunit I (COI) sequences obtained from bdelloid rotifers. We included 2242 individuals from 23 species in a comparison between Antarctic and non‐Antarctic taxa, correcting for sample size directly in the analyses and then by confirming the results also using only a restricted dataset of nine well‐sampled species. Results Antarctic species had consistently lower genetic diversity and potential younger relative age than non‐Antarctic species, even if they were similar in sample size, geographical extent, neutrality and differentiation indices, and correlation between genetic and geographical distances. Main conclusions The extensive survey of genetic diversity in one mitochondrial marker in Antarctic bdelloids supports previous suggestions from other organisms that the origin and maintenance of terrestrial Antarctic fauna are different from those of other continents. Such differences could be speculated to be due, in the case of bdelloid rotifers, to the more recent origin of the species living there in comparison to non‐Antarctic species. |
format |
Article in Journal/Newspaper |
author |
Cakil, Zeyneb Vildan Garlasche, Giuseppe Iakovenko, Nataliia Di Cesare, Andrea Eckert, Ester M. Guidetti, Roberto Hamdan, Lina Janko, Karel Lukashanets, Dzmitry Rebecchi, Lorena Schiaparelli, Stefano Sforzi, Tommaso Štefková Kašparová, Eva Velasco‐Castrillón, Alejandro Walsh, Elizabeth J. Fontaneto, Diego |
author_facet |
Cakil, Zeyneb Vildan Garlasche, Giuseppe Iakovenko, Nataliia Di Cesare, Andrea Eckert, Ester M. Guidetti, Roberto Hamdan, Lina Janko, Karel Lukashanets, Dzmitry Rebecchi, Lorena Schiaparelli, Stefano Sforzi, Tommaso Štefková Kašparová, Eva Velasco‐Castrillón, Alejandro Walsh, Elizabeth J. Fontaneto, Diego |
author_sort |
Cakil, Zeyneb Vildan |
title |
Comparative phylogeography reveals consistently shallow genetic diversity in a mitochondrial marker in Antarctic bdelloid rotifers |
title_short |
Comparative phylogeography reveals consistently shallow genetic diversity in a mitochondrial marker in Antarctic bdelloid rotifers |
title_full |
Comparative phylogeography reveals consistently shallow genetic diversity in a mitochondrial marker in Antarctic bdelloid rotifers |
title_fullStr |
Comparative phylogeography reveals consistently shallow genetic diversity in a mitochondrial marker in Antarctic bdelloid rotifers |
title_full_unstemmed |
Comparative phylogeography reveals consistently shallow genetic diversity in a mitochondrial marker in Antarctic bdelloid rotifers |
title_sort |
comparative phylogeography reveals consistently shallow genetic diversity in a mitochondrial marker in antarctic bdelloid rotifers |
publishDate |
2021 |
url |
http://ku.lvb.lt/KU:ELABAPDB92252167&prefLang=en_US |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Journal of biogeography, Hoboken : Wiley, 2021, vol. 48, no. 7, p. 1797-1809 ISSN 0305-0270 eISSN 1365-2699 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/jbi.14116 http://ku.lvb.lt/KU:ELABAPDB92252167&prefLang=en_US |
op_doi |
https://doi.org/10.1111/jbi.14116 |
container_title |
Journal of Biogeography |
container_volume |
48 |
container_issue |
7 |
container_start_page |
1797 |
op_container_end_page |
1809 |
_version_ |
1766268199083442176 |