High levels of genetic structuring in the Antarctic springtail Cryptopygus terranovus
Previous work focused on allozymes and mitochondrial haplotypes has detected high levels of genetic variability between Cryptopygus terranovus populations, a springtail species endemic to Antarctica, until recently named Gressittacantha terranova. This study expands these biogeographical surveys usi...
Published in: | Antarctic Science |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2017
|
Subjects: | |
Online Access: | http://hdl.handle.net/11365/1005156 https://doi.org/10.1017/S0954102016000730 https://www.cambridge.org/core/journals/antarctic-science/article/high-levels-of-genetic-structuring-in-the-antarctic-springtail-cryptopygus-terranovus/4EE92F64C99EC6E8B2E7764C02A03BC3 |
id |
ftunivsiena:oai:usiena-air.unisi.it:11365/1005156 |
---|---|
record_format |
openpolar |
spelling |
ftunivsiena:oai:usiena-air.unisi.it:11365/1005156 2024-04-14T08:02:24+00:00 High levels of genetic structuring in the Antarctic springtail Cryptopygus terranovus Carapelli, Antonio Leo, Chiara Frati, Francesco Carapelli, Antonio Leo, Chiara Frati, Francesco 2017 STAMPA http://hdl.handle.net/11365/1005156 https://doi.org/10.1017/S0954102016000730 https://www.cambridge.org/core/journals/antarctic-science/article/high-levels-of-genetic-structuring-in-the-antarctic-springtail-cryptopygus-terranovus/4EE92F64C99EC6E8B2E7764C02A03BC3 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000407733900003 volume:29 issue:4 firstpage:311 lastpage:323 numberofpages:13 journal:ANTARCTIC SCIENCE http://hdl.handle.net/11365/1005156 doi:10.1017/S0954102016000730 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85011933840 https://www.cambridge.org/core/journals/antarctic-science/article/high-levels-of-genetic-structuring-in-the-antarctic-springtail-cryptopygus-terranovus/4EE92F64C99EC6E8B2E7764C02A03BC3 info:eu-repo/semantics/closedAccess Antarctica biogeography Collembola cox1 haplotype Victoria Land Oceanography Ecology Evolution Behavior and Systematic Geology info:eu-repo/semantics/article 2017 ftunivsiena https://doi.org/10.1017/S0954102016000730 2024-03-21T16:11:15Z Previous work focused on allozymes and mitochondrial haplotypes has detected high levels of genetic variability between Cryptopygus terranovus populations, a springtail species endemic to Antarctica, until recently named Gressittacantha terranova. This study expands these biogeographical surveys using additional analytical techniques, providing a denser haplotype dataset and a wider sampling of localities. Specimens were collected from 11 sites across Victoria Land and sequenced for the cytochrome c oxidase subunit I mitochondrial gene (cox1). Haplotypes were used for population genetics, demographic, molecular clock and Bayesian phylogenetic analyses. Landscape distribution and clustering of haplotypes were also examined for the first time in this species. Only three (out of 67) haplotypes are shared among populations, suggesting high genetic structure and limited gene flow between sites. As in previous studies, the population of Apostrophe Island has a closer genetic similarity with those of the central sites, rather than with its neighbours. Molecular clock estimates point to early differentiation of haplotypes in the late/mid-Miocene, also supporting the view that C. terranovus is a relict species that survived on the Antarctic continent during the Last Glacial Maximum. The present genetic composition of populations represents a mixture of ancient and more recent haplotypes, sometimes occurring in the same localities. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctic Springtail Antarctica Terranova Victoria Land Springtail Università degli Studi di Siena: USiena air Antarctic The Antarctic Victoria Land Apostrophe Island ENVELOPE(167.433,167.433,-73.517,-73.517) Antarctic Science 29 4 311 323 |
institution |
Open Polar |
collection |
Università degli Studi di Siena: USiena air |
op_collection_id |
ftunivsiena |
language |
English |
topic |
Antarctica biogeography Collembola cox1 haplotype Victoria Land Oceanography Ecology Evolution Behavior and Systematic Geology |
spellingShingle |
Antarctica biogeography Collembola cox1 haplotype Victoria Land Oceanography Ecology Evolution Behavior and Systematic Geology Carapelli, Antonio Leo, Chiara Frati, Francesco High levels of genetic structuring in the Antarctic springtail Cryptopygus terranovus |
topic_facet |
Antarctica biogeography Collembola cox1 haplotype Victoria Land Oceanography Ecology Evolution Behavior and Systematic Geology |
description |
Previous work focused on allozymes and mitochondrial haplotypes has detected high levels of genetic variability between Cryptopygus terranovus populations, a springtail species endemic to Antarctica, until recently named Gressittacantha terranova. This study expands these biogeographical surveys using additional analytical techniques, providing a denser haplotype dataset and a wider sampling of localities. Specimens were collected from 11 sites across Victoria Land and sequenced for the cytochrome c oxidase subunit I mitochondrial gene (cox1). Haplotypes were used for population genetics, demographic, molecular clock and Bayesian phylogenetic analyses. Landscape distribution and clustering of haplotypes were also examined for the first time in this species. Only three (out of 67) haplotypes are shared among populations, suggesting high genetic structure and limited gene flow between sites. As in previous studies, the population of Apostrophe Island has a closer genetic similarity with those of the central sites, rather than with its neighbours. Molecular clock estimates point to early differentiation of haplotypes in the late/mid-Miocene, also supporting the view that C. terranovus is a relict species that survived on the Antarctic continent during the Last Glacial Maximum. The present genetic composition of populations represents a mixture of ancient and more recent haplotypes, sometimes occurring in the same localities. |
author2 |
Carapelli, Antonio Leo, Chiara Frati, Francesco |
format |
Article in Journal/Newspaper |
author |
Carapelli, Antonio Leo, Chiara Frati, Francesco |
author_facet |
Carapelli, Antonio Leo, Chiara Frati, Francesco |
author_sort |
Carapelli, Antonio |
title |
High levels of genetic structuring in the Antarctic springtail Cryptopygus terranovus |
title_short |
High levels of genetic structuring in the Antarctic springtail Cryptopygus terranovus |
title_full |
High levels of genetic structuring in the Antarctic springtail Cryptopygus terranovus |
title_fullStr |
High levels of genetic structuring in the Antarctic springtail Cryptopygus terranovus |
title_full_unstemmed |
High levels of genetic structuring in the Antarctic springtail Cryptopygus terranovus |
title_sort |
high levels of genetic structuring in the antarctic springtail cryptopygus terranovus |
publishDate |
2017 |
url |
http://hdl.handle.net/11365/1005156 https://doi.org/10.1017/S0954102016000730 https://www.cambridge.org/core/journals/antarctic-science/article/high-levels-of-genetic-structuring-in-the-antarctic-springtail-cryptopygus-terranovus/4EE92F64C99EC6E8B2E7764C02A03BC3 |
long_lat |
ENVELOPE(167.433,167.433,-73.517,-73.517) |
geographic |
Antarctic The Antarctic Victoria Land Apostrophe Island |
geographic_facet |
Antarctic The Antarctic Victoria Land Apostrophe Island |
genre |
Antarc* Antarctic Antarctic Science Antarctic Springtail Antarctica Terranova Victoria Land Springtail |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctic Springtail Antarctica Terranova Victoria Land Springtail |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000407733900003 volume:29 issue:4 firstpage:311 lastpage:323 numberofpages:13 journal:ANTARCTIC SCIENCE http://hdl.handle.net/11365/1005156 doi:10.1017/S0954102016000730 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85011933840 https://www.cambridge.org/core/journals/antarctic-science/article/high-levels-of-genetic-structuring-in-the-antarctic-springtail-cryptopygus-terranovus/4EE92F64C99EC6E8B2E7764C02A03BC3 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1017/S0954102016000730 |
container_title |
Antarctic Science |
container_volume |
29 |
container_issue |
4 |
container_start_page |
311 |
op_container_end_page |
323 |
_version_ |
1796314666337566720 |