PreprintArticleVersion 1This version is not peer-reviewed
The Genus Chaetogaster Baer, 1827 (Annelida, Clitellata) in Switzerland: A First Step towards Cataloguing Its Molecular Diversity, and Description of New Species on a DNA Sequence Basis
Version 1
: Received: 7 August 2024 / Approved: 8 August 2024 / Online: 9 August 2024 (07:10:58 CEST)
How to cite:
Vivien, R.; Lafont, M.; Issartel, C.; Ferrari, B. J.; Martin, P. The Genus Chaetogaster Baer, 1827 (Annelida, Clitellata) in Switzerland: A First Step towards Cataloguing Its Molecular Diversity, and Description of New Species on a DNA Sequence Basis. Preprints2024, 2024080642. https://doi.org/10.20944/preprints202408.0642.v1
Vivien, R.; Lafont, M.; Issartel, C.; Ferrari, B. J.; Martin, P. The Genus Chaetogaster Baer, 1827 (Annelida, Clitellata) in Switzerland: A First Step towards Cataloguing Its Molecular Diversity, and Description of New Species on a DNA Sequence Basis. Preprints 2024, 2024080642. https://doi.org/10.20944/preprints202408.0642.v1
Vivien, R.; Lafont, M.; Issartel, C.; Ferrari, B. J.; Martin, P. The Genus Chaetogaster Baer, 1827 (Annelida, Clitellata) in Switzerland: A First Step towards Cataloguing Its Molecular Diversity, and Description of New Species on a DNA Sequence Basis. Preprints2024, 2024080642. https://doi.org/10.20944/preprints202408.0642.v1
APA Style
Vivien, R., Lafont, M., Issartel, C., Ferrari, B. J., & Martin, P. (2024). The Genus <em>Chaetogaster </em>Baer, 1827 (Annelida, Clitellata) in Switzerland: A First Step towards Cataloguing Its Molecular Diversity, and Description of New Species on a DNA Sequence Basis. Preprints. https://doi.org/10.20944/preprints202408.0642.v1
Chicago/Turabian Style
Vivien, R., Benoît J.D. Ferrari and Patrick Martin. 2024 "The Genus <em>Chaetogaster </em>Baer, 1827 (Annelida, Clitellata) in Switzerland: A First Step towards Cataloguing Its Molecular Diversity, and Description of New Species on a DNA Sequence Basis" Preprints. https://doi.org/10.20944/preprints202408.0642.v1
Abstract
The genus Chaetogaster belongs to the subfamily Naidinae (Naididae), includes mostly species of small size and is diverse and abundant in surface coarse sediments in streams. The aim of the present study is to initiate an inventory of lineages of Chaetogaster in Switzerland. We used 135 specimens collected at six sites in four streams of four cantons. We sequenced the cytochrome c oxidase (COI) gene from all specimens and ITS2 and rDNA 28S from all or several specimens of each lineage delimited using COI data and preserved a voucher of almost all sequenced specimens. We could delimit one lineage (=species) for Chaetogaster diaphanus (Gruithuisen, 1828), three within Chaetogaster diastrophus (Gruithuisen, 1828), one for Chaetogaster langi Brestcher, 1896, one for Chaetogaster setosus Svetlov, 1925 and three unidentified Chaetogaster spp. Two lineages of Chaetogaster spp. could correspond to a new morphological group, but this should be confirmed on more specimens. We described the three C. diastrophus lineages and two Chaetogaster spp. as new species for science. The prospects of the present work are to complete the data of the molecular diversity of this genus in Switzerland and to describe on a molecular/morphological basis the new Chaetogaster species that we will probably find.
Keywords
aquatic oligochaetes; Chaetogaster; cryptic diversity; molecular systematics; genetic lineages; new species
Subject
Biology and Life Sciences, Ecology, Evolution, Behavior and Systematics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
