Polyphyly and cryptic diversity in the hydrozoan families Lafoeidae and Hebellidae (Cnidaria: Hydrozoa)
The taxonomy of the putative superfamily Lafoeoidea (Hydrozoa), which includes the families Hebellidae and Lafoeidae, has been widely disputed at all systematic levels, mainly because these are morphologically simple and plastic animals. We used the molecular marker 16S mRNA to address phylogenetic...
Published in: | Invertebrate Systematics |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
CSIRO Publishing
2011
|
Subjects: | |
Online Access: | http://hdl.handle.net/10773/10328 https://doi.org/10.1071/IS11045 |
id |
ftria:oai:ria.ua.pt:10773/10328 |
---|---|
record_format |
openpolar |
spelling |
ftria:oai:ria.ua.pt:10773/10328 2023-05-15T17:38:33+02:00 Polyphyly and cryptic diversity in the hydrozoan families Lafoeidae and Hebellidae (Cnidaria: Hydrozoa) Moura, Carlos J. Cunha, Marina R. Porteiro, Filipe M. Rogers, Alex D. 2011-02 http://hdl.handle.net/10773/10328 https://doi.org/10.1071/IS11045 eng eng CSIRO Publishing info:eu-repo/grantAgreement/EC/FP7/226354 info:eu-repo/grantAgreement/EC/FP7/213144 6PQ (UE) GOCECT-2005-511234-1 HERMES Training Through Research (IOC-UNESCO) Mycrosystems FCT SFRH/BD/31155/2006 1445-5226 http://hdl.handle.net/10773/10328 doi:10.1071/IS11045 restrictedAccess Hydrozoa Deep-sea biology Molecular taxonomy article 2011 ftria https://doi.org/10.1071/IS11045 2022-05-25T18:33:32Z The taxonomy of the putative superfamily Lafoeoidea (Hydrozoa), which includes the families Hebellidae and Lafoeidae, has been widely disputed at all systematic levels, mainly because these are morphologically simple and plastic animals. We used the molecular marker 16S mRNA to address phylogenetic relations of 'Lafoeoidea' hydroids mainly from shallow and deep waters of the north-east Atlantic and west Mediterranean. This study proves that the morphological simplicity of the 'Lafoeoidea' has led to several erroneous taxonomic assignments. We demonstrate that the superfamily 'Lafoeoidea' is not monophyletic and thus not valid; the families Hebellidae and Lafoeidae are polyphyletic. The 'Lafoeidae' subfamilies 'Lafoeinae' and 'Zygophylacinae' were recovered as monophyletic but quite distantly related and should be erected to the level of distinct families. The 16S haplotype data analysed in conjunction with morphological characters and distribution data were useful in differentiating morphologically undistinguishable, nominal and cryptic or pseudo-cryptic species, including undescribed taxa. Particularly within the 'Lafoeinae' group, unexpectedly high genetic biodiversity (including cryptic species) was encountered in the possibly not monophyletic genera Lafoea, Acryptolaria and Filellum. Cryptic diversity is also likely associated with the 'Zygophylacinae' nominal species Cryptolaria pectinata. The indications of genetic segregation by geographical distance of the 'Lafoeoidea' hydroids, particularly verified in deep waters, is probably a consequence of their reduced potential for large-scale dispersal, which likely interacts with the influence of the seabed topography, oceanographic circulation and adaptability to tolerate different abiotic conditions. Article in Journal/Newspaper North East Atlantic Repositório Institucional da Universidade de Aveiro (RIA) Invertebrate Systematics 25 5 454 |
institution |
Open Polar |
collection |
Repositório Institucional da Universidade de Aveiro (RIA) |
op_collection_id |
ftria |
language |
English |
topic |
Hydrozoa Deep-sea biology Molecular taxonomy |
spellingShingle |
Hydrozoa Deep-sea biology Molecular taxonomy Moura, Carlos J. Cunha, Marina R. Porteiro, Filipe M. Rogers, Alex D. Polyphyly and cryptic diversity in the hydrozoan families Lafoeidae and Hebellidae (Cnidaria: Hydrozoa) |
topic_facet |
Hydrozoa Deep-sea biology Molecular taxonomy |
description |
The taxonomy of the putative superfamily Lafoeoidea (Hydrozoa), which includes the families Hebellidae and Lafoeidae, has been widely disputed at all systematic levels, mainly because these are morphologically simple and plastic animals. We used the molecular marker 16S mRNA to address phylogenetic relations of 'Lafoeoidea' hydroids mainly from shallow and deep waters of the north-east Atlantic and west Mediterranean. This study proves that the morphological simplicity of the 'Lafoeoidea' has led to several erroneous taxonomic assignments. We demonstrate that the superfamily 'Lafoeoidea' is not monophyletic and thus not valid; the families Hebellidae and Lafoeidae are polyphyletic. The 'Lafoeidae' subfamilies 'Lafoeinae' and 'Zygophylacinae' were recovered as monophyletic but quite distantly related and should be erected to the level of distinct families. The 16S haplotype data analysed in conjunction with morphological characters and distribution data were useful in differentiating morphologically undistinguishable, nominal and cryptic or pseudo-cryptic species, including undescribed taxa. Particularly within the 'Lafoeinae' group, unexpectedly high genetic biodiversity (including cryptic species) was encountered in the possibly not monophyletic genera Lafoea, Acryptolaria and Filellum. Cryptic diversity is also likely associated with the 'Zygophylacinae' nominal species Cryptolaria pectinata. The indications of genetic segregation by geographical distance of the 'Lafoeoidea' hydroids, particularly verified in deep waters, is probably a consequence of their reduced potential for large-scale dispersal, which likely interacts with the influence of the seabed topography, oceanographic circulation and adaptability to tolerate different abiotic conditions. |
format |
Article in Journal/Newspaper |
author |
Moura, Carlos J. Cunha, Marina R. Porteiro, Filipe M. Rogers, Alex D. |
author_facet |
Moura, Carlos J. Cunha, Marina R. Porteiro, Filipe M. Rogers, Alex D. |
author_sort |
Moura, Carlos J. |
title |
Polyphyly and cryptic diversity in the hydrozoan families Lafoeidae and Hebellidae (Cnidaria: Hydrozoa) |
title_short |
Polyphyly and cryptic diversity in the hydrozoan families Lafoeidae and Hebellidae (Cnidaria: Hydrozoa) |
title_full |
Polyphyly and cryptic diversity in the hydrozoan families Lafoeidae and Hebellidae (Cnidaria: Hydrozoa) |
title_fullStr |
Polyphyly and cryptic diversity in the hydrozoan families Lafoeidae and Hebellidae (Cnidaria: Hydrozoa) |
title_full_unstemmed |
Polyphyly and cryptic diversity in the hydrozoan families Lafoeidae and Hebellidae (Cnidaria: Hydrozoa) |
title_sort |
polyphyly and cryptic diversity in the hydrozoan families lafoeidae and hebellidae (cnidaria: hydrozoa) |
publisher |
CSIRO Publishing |
publishDate |
2011 |
url |
http://hdl.handle.net/10773/10328 https://doi.org/10.1071/IS11045 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/226354 info:eu-repo/grantAgreement/EC/FP7/213144 6PQ (UE) GOCECT-2005-511234-1 HERMES Training Through Research (IOC-UNESCO) Mycrosystems FCT SFRH/BD/31155/2006 1445-5226 http://hdl.handle.net/10773/10328 doi:10.1071/IS11045 |
op_rights |
restrictedAccess |
op_doi |
https://doi.org/10.1071/IS11045 |
container_title |
Invertebrate Systematics |
container_volume |
25 |
container_issue |
5 |
container_start_page |
454 |
_version_ |
1766139037348790272 |