Due South: the evolutionary history of Sub-Antarctic and Antarctic Tritoniidae nudibranchs
The Tritoniidae provides one of the most famous model species for neurophysiology and behaviour, yet a well-developed phylogenetic framework for this family is still incomplete. In this study, we explored the species-level taxonomy, phylogenetic relationships, and geographic distributions of the tri...
Published in: | Molecular Phylogenetics and Evolution |
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ftuperucayetanoh:oai:repositorio.upch.edu.pe:20.500.12866/9482 2023-05-15T13:50:16+02:00 Due South: the evolutionary history of Sub-Antarctic and Antarctic Tritoniidae nudibranchs Moles, Juan Berning, María I. Hooker, Yuri Padula, Vinicius Wilson, Nerida G. Schrödl, Michael 2021 https://hdl.handle.net/20.500.12866/9482 https://doi.org/10.1016/j.ympev.2021.107209 eng eng Elsevier urn:issn:1095-9513 https://hdl.handle.net/20.500.12866/9482 https://doi.org/10.1016/j.ympev.2021.107209 info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es CC-BY-NC-ND marine biodiversity pseudocryptic speciation sea slugs Southern Ocean Tritonia Tritoniella https://purl.org/pe-repo/ocde/ford#3.02.00 https://purl.org/pe-repo/ocde/ford#1.06.03 https://purl.org/pe-repo/ocde/ford#1.06.07 info:eu-repo/semantics/article 2021 ftuperucayetanoh https://doi.org/20.500.12866/9482 https://doi.org/10.1016/j.ympev.2021.107209 2022-08-14T07:01:32Z The Tritoniidae provides one of the most famous model species for neurophysiology and behaviour, yet a well-developed phylogenetic framework for this family is still incomplete. In this study, we explored the species-level taxonomy, phylogenetic relationships, and geographic distributions of the tritoniid nudibranchs. During numerous expeditions, specimens from southern South America, Sub-Antarctic Islands, and Antarctica were collected, documented alive, and fixed for anatomical descriptions and genetic sequencing. DNA from 167 specimens were extracted and sequenced for mitochondrial (COI, 16S) and nuclear (H3) markers. An additional 109 sequences of all available tritoniids plus additional outgroups were downloaded from GenBank for comparative purposes. Maximum Likelihood under the GHOST model of evolution and Bayesian inference using the GTR+GAMMA model produced congruent topologies from concatenated alignments. The results of ABGD, GMYC, bPTP, and mPTP species delimitation analyses suggest many separately evolving units that do not coincide with traditionally recognized species limits. Southern Ocean Tritoniella and Tritonia species split into several previously unrecognized species. This result is in accordance with the limited dispersal abilities of some southern tritoniids. Along with the most complete phylogeny of Tritoniidae to date, we also provided many taxonomic notes at the species and genus level. Tritoniidae species are yet another example of under-recognized diversity in the Southern Ocean Article in Journal/Newspaper Antarc* Antarctic Antarctica Southern Ocean Repositorio Institucional de la UPCH (Universidad Peruana Cayetano Heredia) Antarctic Southern Ocean Molecular Phylogenetics and Evolution 162 107209 |
institution |
Open Polar |
collection |
Repositorio Institucional de la UPCH (Universidad Peruana Cayetano Heredia) |
op_collection_id |
ftuperucayetanoh |
language |
English |
topic |
marine biodiversity pseudocryptic speciation sea slugs Southern Ocean Tritonia Tritoniella https://purl.org/pe-repo/ocde/ford#3.02.00 https://purl.org/pe-repo/ocde/ford#1.06.03 https://purl.org/pe-repo/ocde/ford#1.06.07 |
spellingShingle |
marine biodiversity pseudocryptic speciation sea slugs Southern Ocean Tritonia Tritoniella https://purl.org/pe-repo/ocde/ford#3.02.00 https://purl.org/pe-repo/ocde/ford#1.06.03 https://purl.org/pe-repo/ocde/ford#1.06.07 Moles, Juan Berning, María I. Hooker, Yuri Padula, Vinicius Wilson, Nerida G. Schrödl, Michael Due South: the evolutionary history of Sub-Antarctic and Antarctic Tritoniidae nudibranchs |
topic_facet |
marine biodiversity pseudocryptic speciation sea slugs Southern Ocean Tritonia Tritoniella https://purl.org/pe-repo/ocde/ford#3.02.00 https://purl.org/pe-repo/ocde/ford#1.06.03 https://purl.org/pe-repo/ocde/ford#1.06.07 |
description |
The Tritoniidae provides one of the most famous model species for neurophysiology and behaviour, yet a well-developed phylogenetic framework for this family is still incomplete. In this study, we explored the species-level taxonomy, phylogenetic relationships, and geographic distributions of the tritoniid nudibranchs. During numerous expeditions, specimens from southern South America, Sub-Antarctic Islands, and Antarctica were collected, documented alive, and fixed for anatomical descriptions and genetic sequencing. DNA from 167 specimens were extracted and sequenced for mitochondrial (COI, 16S) and nuclear (H3) markers. An additional 109 sequences of all available tritoniids plus additional outgroups were downloaded from GenBank for comparative purposes. Maximum Likelihood under the GHOST model of evolution and Bayesian inference using the GTR+GAMMA model produced congruent topologies from concatenated alignments. The results of ABGD, GMYC, bPTP, and mPTP species delimitation analyses suggest many separately evolving units that do not coincide with traditionally recognized species limits. Southern Ocean Tritoniella and Tritonia species split into several previously unrecognized species. This result is in accordance with the limited dispersal abilities of some southern tritoniids. Along with the most complete phylogeny of Tritoniidae to date, we also provided many taxonomic notes at the species and genus level. Tritoniidae species are yet another example of under-recognized diversity in the Southern Ocean |
format |
Article in Journal/Newspaper |
author |
Moles, Juan Berning, María I. Hooker, Yuri Padula, Vinicius Wilson, Nerida G. Schrödl, Michael |
author_facet |
Moles, Juan Berning, María I. Hooker, Yuri Padula, Vinicius Wilson, Nerida G. Schrödl, Michael |
author_sort |
Moles, Juan |
title |
Due South: the evolutionary history of Sub-Antarctic and Antarctic Tritoniidae nudibranchs |
title_short |
Due South: the evolutionary history of Sub-Antarctic and Antarctic Tritoniidae nudibranchs |
title_full |
Due South: the evolutionary history of Sub-Antarctic and Antarctic Tritoniidae nudibranchs |
title_fullStr |
Due South: the evolutionary history of Sub-Antarctic and Antarctic Tritoniidae nudibranchs |
title_full_unstemmed |
Due South: the evolutionary history of Sub-Antarctic and Antarctic Tritoniidae nudibranchs |
title_sort |
due south: the evolutionary history of sub-antarctic and antarctic tritoniidae nudibranchs |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://hdl.handle.net/20.500.12866/9482 https://doi.org/10.1016/j.ympev.2021.107209 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_relation |
urn:issn:1095-9513 https://hdl.handle.net/20.500.12866/9482 https://doi.org/10.1016/j.ympev.2021.107209 |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/20.500.12866/9482 https://doi.org/10.1016/j.ympev.2021.107209 |
container_title |
Molecular Phylogenetics and Evolution |
container_volume |
162 |
container_start_page |
107209 |
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1766253306649247744 |