Uncovering the shell game with barcodes: diversity of meiofaunal Caecidae snails (Truncatelloidea, Caenogastropoda) from Central America
Caecidae is a species-rich family of microsnails with a worldwide distribution. Typical for many groups of gastropods, caecid taxonomy is largely based on overt shell characters. However, identification of species using shell characteristics is problematic due to their rather uniform, tubular shells...
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ftpubmed:oai:pubmedcentral.nih.gov:7511454 2023-05-15T17:41:35+02:00 Uncovering the shell game with barcodes: diversity of meiofaunal Caecidae snails (Truncatelloidea, Caenogastropoda) from Central America Egger, Christina Neusser, Timea P. Norenburg, Jon Leasi, Francesca Buge, Barbara Vannozzi, Angelo Cunha, Regina L. Cox, Cymon J. Jörger, Katharina M. 2020-09-16 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7511454/ https://doi.org/10.3897/zookeys.968.52986 en eng Pensoft Publishers http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7511454/ http://dx.doi.org/10.3897/zookeys.968.52986 Christina Egger, Timea P. Neusser, Jon Norenburg, Francesca Leasi, Barbara Buge, Angelo Vannozzi, Regina L. Cunha, Cymon J. Cox, Katharina M. Jörger http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Zookeys Research Article Text 2020 ftpubmed https://doi.org/10.3897/zookeys.968.52986 2020-10-04T00:46:00Z Caecidae is a species-rich family of microsnails with a worldwide distribution. Typical for many groups of gastropods, caecid taxonomy is largely based on overt shell characters. However, identification of species using shell characteristics is problematic due to their rather uniform, tubular shells, the presence of different growth stages, and a high degree of intraspecific variability. In the present study, a first integrative approach to caecid taxonomy is provided using light-microscopic investigation with microsculptural analyses and multi-marker barcoding, in conjunction with molecular species delineation analyses (ABGD, haplotype networks, GMYC, and bPTP). In total 132 specimens of Caecum and Meioceras collected during several sampling trips to Central America were analyzed and delineated into a minimum of 19 species to discuss putative synonyms, and supplement the original descriptions. Molecular phylogenetic analyses suggest Meioceras nitidum and M. cubitatum should be reclassified as Caecum, and the genus Meioceras might present a junior synonym of Caecum. Meiofaunal caecids morphologically resembling C. glabrum from the Northeast Atlantic are a complex of cryptic species with independent evolutionary origins, likely associated with multiple habitat shifts to the mesopsammic environment. Caecum invisibile Egger & Jörger, sp. nov. is formally described based on molecular diagnostic characters. This first integrative approach towards the taxonomy of Caecidae increases the known diversity, reveals the need for a reclassification of the genus Caecum and serves as a starting point for a barcoding library of the family, thereby enabling further reliable identifications of these taxonomically challenging microsnails in future studies. Text Northeast Atlantic PubMed Central (PMC) ZooKeys 968 1 42 |
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Research Article Egger, Christina Neusser, Timea P. Norenburg, Jon Leasi, Francesca Buge, Barbara Vannozzi, Angelo Cunha, Regina L. Cox, Cymon J. Jörger, Katharina M. Uncovering the shell game with barcodes: diversity of meiofaunal Caecidae snails (Truncatelloidea, Caenogastropoda) from Central America |
topic_facet |
Research Article |
description |
Caecidae is a species-rich family of microsnails with a worldwide distribution. Typical for many groups of gastropods, caecid taxonomy is largely based on overt shell characters. However, identification of species using shell characteristics is problematic due to their rather uniform, tubular shells, the presence of different growth stages, and a high degree of intraspecific variability. In the present study, a first integrative approach to caecid taxonomy is provided using light-microscopic investigation with microsculptural analyses and multi-marker barcoding, in conjunction with molecular species delineation analyses (ABGD, haplotype networks, GMYC, and bPTP). In total 132 specimens of Caecum and Meioceras collected during several sampling trips to Central America were analyzed and delineated into a minimum of 19 species to discuss putative synonyms, and supplement the original descriptions. Molecular phylogenetic analyses suggest Meioceras nitidum and M. cubitatum should be reclassified as Caecum, and the genus Meioceras might present a junior synonym of Caecum. Meiofaunal caecids morphologically resembling C. glabrum from the Northeast Atlantic are a complex of cryptic species with independent evolutionary origins, likely associated with multiple habitat shifts to the mesopsammic environment. Caecum invisibile Egger & Jörger, sp. nov. is formally described based on molecular diagnostic characters. This first integrative approach towards the taxonomy of Caecidae increases the known diversity, reveals the need for a reclassification of the genus Caecum and serves as a starting point for a barcoding library of the family, thereby enabling further reliable identifications of these taxonomically challenging microsnails in future studies. |
format |
Text |
author |
Egger, Christina Neusser, Timea P. Norenburg, Jon Leasi, Francesca Buge, Barbara Vannozzi, Angelo Cunha, Regina L. Cox, Cymon J. Jörger, Katharina M. |
author_facet |
Egger, Christina Neusser, Timea P. Norenburg, Jon Leasi, Francesca Buge, Barbara Vannozzi, Angelo Cunha, Regina L. Cox, Cymon J. Jörger, Katharina M. |
author_sort |
Egger, Christina |
title |
Uncovering the shell game with barcodes: diversity of meiofaunal Caecidae snails (Truncatelloidea, Caenogastropoda) from Central America |
title_short |
Uncovering the shell game with barcodes: diversity of meiofaunal Caecidae snails (Truncatelloidea, Caenogastropoda) from Central America |
title_full |
Uncovering the shell game with barcodes: diversity of meiofaunal Caecidae snails (Truncatelloidea, Caenogastropoda) from Central America |
title_fullStr |
Uncovering the shell game with barcodes: diversity of meiofaunal Caecidae snails (Truncatelloidea, Caenogastropoda) from Central America |
title_full_unstemmed |
Uncovering the shell game with barcodes: diversity of meiofaunal Caecidae snails (Truncatelloidea, Caenogastropoda) from Central America |
title_sort |
uncovering the shell game with barcodes: diversity of meiofaunal caecidae snails (truncatelloidea, caenogastropoda) from central america |
publisher |
Pensoft Publishers |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7511454/ https://doi.org/10.3897/zookeys.968.52986 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Zookeys |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7511454/ http://dx.doi.org/10.3897/zookeys.968.52986 |
op_rights |
Christina Egger, Timea P. Neusser, Jon Norenburg, Francesca Leasi, Barbara Buge, Angelo Vannozzi, Regina L. Cunha, Cymon J. Cox, Katharina M. Jörger http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3897/zookeys.968.52986 |
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ZooKeys |
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968 |
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1 |
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42 |
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1766143213194706944 |