Species delimitation in Amblyosyllis (Annelida, Syllidae)

Detalhes bibliográficos
Autor(a) principal: Aguado, María Teresa
Data de Publicação: 2019
Outros Autores: Capa, María, Lago-Barcia, Domingo, Gil, João, Pleijel, Fredrik, Nygren, Arne
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.1/12524
Resumo: Amblyosyllis is a worldwide distributed group of annelids mainly found in coastal environments. It is well known among the polychaete specialists mostly because of its notable beauty, showing bright colourful patterns and outstanding long and coiled appendices. Amblyosyllis is a monophyletic genus easy to identify due to its distinct diagnostic features; however, the species and their boundaries are, in most cases, not well defined. Herein, we provide an extensive sample of Amblyosyllis material (115 specimens) from several world geographic areas. We have studied the morphological features of each specimen and photographed them alive. Two mitochondrial DNA markers (COI and 16S) and one nuclear gene fragment (28S, D1 region) were sequenced. We performed phylogenetic analyses based on each DNA partition, as well as the combined data sets, obtaining congruent results. Species delimitation methods such as distance analyses, statistical parsimony networks and multi-rate Poisson tree processes were also applied. The combined results obtained from different methodologies and data sets are used to differentiate between, at least, 19 lineages compatible with the separately evolving meta-populations species concept. Four of these lineages are identified as nominal species, including the type species of Amblyosyllis, A. rhombeata. For three other lineages previously synonymized names are recovered, and seven lineages are described as new species. All of these species are described and supported by appropriate iconography. We recognize several morphological characters useful to identify species of Amblyosyllis, which in some cases should also be combined with molecular methods for species delineation. The genetic divergence in the genus is high, contrary to the morphological homogeneity observed. Two species show a wide geographical distribution, while the rest have a more restricted distribution. There are several examples of species with overlapping distribution patterns.
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spelling Species delimitation in Amblyosyllis (Annelida, Syllidae)Amblyosyllis is a worldwide distributed group of annelids mainly found in coastal environments. It is well known among the polychaete specialists mostly because of its notable beauty, showing bright colourful patterns and outstanding long and coiled appendices. Amblyosyllis is a monophyletic genus easy to identify due to its distinct diagnostic features; however, the species and their boundaries are, in most cases, not well defined. Herein, we provide an extensive sample of Amblyosyllis material (115 specimens) from several world geographic areas. We have studied the morphological features of each specimen and photographed them alive. Two mitochondrial DNA markers (COI and 16S) and one nuclear gene fragment (28S, D1 region) were sequenced. We performed phylogenetic analyses based on each DNA partition, as well as the combined data sets, obtaining congruent results. Species delimitation methods such as distance analyses, statistical parsimony networks and multi-rate Poisson tree processes were also applied. The combined results obtained from different methodologies and data sets are used to differentiate between, at least, 19 lineages compatible with the separately evolving meta-populations species concept. Four of these lineages are identified as nominal species, including the type species of Amblyosyllis, A. rhombeata. For three other lineages previously synonymized names are recovered, and seven lineages are described as new species. All of these species are described and supported by appropriate iconography. We recognize several morphological characters useful to identify species of Amblyosyllis, which in some cases should also be combined with molecular methods for species delineation. The genetic divergence in the genus is high, contrary to the morphological homogeneity observed. Two species show a wide geographical distribution, while the rest have a more restricted distribution. There are several examples of species with overlapping distribution patterns.MINECO/FEDER, UE CGL2015-63593-P ForBio Research School Research Council of Norway 248799 Norwegian Taxonomy Initiative 70184215 70184228 Ramon y Cajal program - Spanish MINECO RYC-2016-20799 Agencia Estatal de Investigacion, Comunidad Autonoma de las Islas Baleares European Social Fund Kungliga Fysiografiskasallskapet Nilsson-Ehle donationernaPublic Library of ScienceSapientiaAguado, María TeresaCapa, MaríaLago-Barcia, DomingoGil, JoãoPleijel, FredrikNygren, Arne2019-05-20T12:49:57Z2019-042019-04-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/12524eng1932-620310.1371/journal.pone.0214211info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:24:30Zoai:sapientia.ualg.pt:10400.1/12524Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:03:51.768987Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Species delimitation in Amblyosyllis (Annelida, Syllidae)
title Species delimitation in Amblyosyllis (Annelida, Syllidae)
spellingShingle Species delimitation in Amblyosyllis (Annelida, Syllidae)
Aguado, María Teresa
title_short Species delimitation in Amblyosyllis (Annelida, Syllidae)
title_full Species delimitation in Amblyosyllis (Annelida, Syllidae)
title_fullStr Species delimitation in Amblyosyllis (Annelida, Syllidae)
title_full_unstemmed Species delimitation in Amblyosyllis (Annelida, Syllidae)
title_sort Species delimitation in Amblyosyllis (Annelida, Syllidae)
author Aguado, María Teresa
author_facet Aguado, María Teresa
Capa, María
Lago-Barcia, Domingo
Gil, João
Pleijel, Fredrik
Nygren, Arne
author_role author
author2 Capa, María
Lago-Barcia, Domingo
Gil, João
Pleijel, Fredrik
Nygren, Arne
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Sapientia
dc.contributor.author.fl_str_mv Aguado, María Teresa
Capa, María
Lago-Barcia, Domingo
Gil, João
Pleijel, Fredrik
Nygren, Arne
description Amblyosyllis is a worldwide distributed group of annelids mainly found in coastal environments. It is well known among the polychaete specialists mostly because of its notable beauty, showing bright colourful patterns and outstanding long and coiled appendices. Amblyosyllis is a monophyletic genus easy to identify due to its distinct diagnostic features; however, the species and their boundaries are, in most cases, not well defined. Herein, we provide an extensive sample of Amblyosyllis material (115 specimens) from several world geographic areas. We have studied the morphological features of each specimen and photographed them alive. Two mitochondrial DNA markers (COI and 16S) and one nuclear gene fragment (28S, D1 region) were sequenced. We performed phylogenetic analyses based on each DNA partition, as well as the combined data sets, obtaining congruent results. Species delimitation methods such as distance analyses, statistical parsimony networks and multi-rate Poisson tree processes were also applied. The combined results obtained from different methodologies and data sets are used to differentiate between, at least, 19 lineages compatible with the separately evolving meta-populations species concept. Four of these lineages are identified as nominal species, including the type species of Amblyosyllis, A. rhombeata. For three other lineages previously synonymized names are recovered, and seven lineages are described as new species. All of these species are described and supported by appropriate iconography. We recognize several morphological characters useful to identify species of Amblyosyllis, which in some cases should also be combined with molecular methods for species delineation. The genetic divergence in the genus is high, contrary to the morphological homogeneity observed. Two species show a wide geographical distribution, while the rest have a more restricted distribution. There are several examples of species with overlapping distribution patterns.
publishDate 2019
dc.date.none.fl_str_mv 2019-05-20T12:49:57Z
2019-04
2019-04-01T00:00:00Z
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10.1371/journal.pone.0214211
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