The importance of molecular characters when morphological variability hinders diagnosability: Systematics of the moon jellyfish genus Aurelia (Cnidaria: Scyphozoa)
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.7717/peerj.11954 http://hdl.handle.net/11449/222414 |
Resumo: | Cryptic species have been detected across Metazoa, and while no apparent morphological features distinguish them, it should not impede taxonomists from formal descriptions. We accepted this challenge for the jellyfish genus Aurelia, which has a long and confusing taxonomic history. We demonstrate that morphological variability in Aurelia medusae overlaps across very distant geographic localities. Even though some morphological features seem responsible for most of the variation, regional geographic patterns of dissimilarities are lacking. This is further emphasized by morphological differences found when comparing lab-cultured Aurelia coerulea medusae with the diagnostic features in its recent redescription. Previous studies have also highlighted the difficulties in distinguishing Aurelia polyps and ephyrae, and their morphological plasticity. Therefore, mostly based on genetic data, we recognize 28 species of Aurelia, of which seven were already described, 10 are formally described herein, four are resurrected and seven remain undescribed. We present diagnostic genetic characters for all species and designate type materials for newly described and some resurrected species. Recognizing moon jellyfish diversity with formal names is vital for conservation efforts and other studies. This work clarifies the practical implications of molecular genetic data as diagnostic characters, and sheds light on the patterns and processes that generate crypsis. |
id |
UNSP_b7ee607955e48207581f7cd40ee16003 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/222414 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
The importance of molecular characters when morphological variability hinders diagnosability: Systematics of the moon jellyfish genus Aurelia (Cnidaria: Scyphozoa)Cryptic speciesDiagnosisDNA barcodingMedusaPhylogenySpecies delimitationSpecies descriptionSynapomorphyTaxonomyCryptic species have been detected across Metazoa, and while no apparent morphological features distinguish them, it should not impede taxonomists from formal descriptions. We accepted this challenge for the jellyfish genus Aurelia, which has a long and confusing taxonomic history. We demonstrate that morphological variability in Aurelia medusae overlaps across very distant geographic localities. Even though some morphological features seem responsible for most of the variation, regional geographic patterns of dissimilarities are lacking. This is further emphasized by morphological differences found when comparing lab-cultured Aurelia coerulea medusae with the diagnostic features in its recent redescription. Previous studies have also highlighted the difficulties in distinguishing Aurelia polyps and ephyrae, and their morphological plasticity. Therefore, mostly based on genetic data, we recognize 28 species of Aurelia, of which seven were already described, 10 are formally described herein, four are resurrected and seven remain undescribed. We present diagnostic genetic characters for all species and designate type materials for newly described and some resurrected species. Recognizing moon jellyfish diversity with formal names is vital for conservation efforts and other studies. This work clarifies the practical implications of molecular genetic data as diagnostic characters, and sheds light on the patterns and processes that generate crypsis.Departamento de Zoologia Instituto de Biociências Universidade de São Paulo, São PauloSchool of Environment and Science Coastal and Marine Research Centre Australian Rivers Institute Griffith UniversityInstituto Nacional de Investigación y Desarrollo Pesquero, Buenos AiresDepartamento de Ciências Biológicas Faculdade de Ciências e Letras Universidade Estadual Paulista, São PauloCollege of Fisheries and Ocean Sciences University of Alaska-FairbanksNational Systematics Laboratory National Oceanic and Atmospheric Administration Fisheries Service National Museum of Natural History Smithsonian InstitutionCentro de Biologia Marinha Universidade de São Paulo, São PauloDepartamento de Ciências Biológicas Faculdade de Ciências e Letras Universidade Estadual Paulista, São PauloUniversidade de São Paulo (USP)Griffith UniversityInstituto Nacional de Investigación y Desarrollo PesqueroUniversidade Estadual Paulista (UNESP)University of Alaska-FairbanksSmithsonian InstitutionLawley, Jonathan W.Gamero-Mora, EdgarMaronna, Maximiliano M.Chiaverano, Luciano M.Stampar, Sérgio N. [UNESP]Hopcroft, Russell R.Collins, Allen G.Morandini, André C.2022-04-28T19:44:37Z2022-04-28T19:44:37Z2021-09-09info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.7717/peerj.11954PeerJ, v. 9.2167-8359http://hdl.handle.net/11449/22241410.7717/peerj.119542-s2.0-85114892852Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPeerJinfo:eu-repo/semantics/openAccess2022-04-28T19:44:37Zoai:repositorio.unesp.br:11449/222414Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:17:56.142334Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The importance of molecular characters when morphological variability hinders diagnosability: Systematics of the moon jellyfish genus Aurelia (Cnidaria: Scyphozoa) |
title |
The importance of molecular characters when morphological variability hinders diagnosability: Systematics of the moon jellyfish genus Aurelia (Cnidaria: Scyphozoa) |
spellingShingle |
The importance of molecular characters when morphological variability hinders diagnosability: Systematics of the moon jellyfish genus Aurelia (Cnidaria: Scyphozoa) Lawley, Jonathan W. Cryptic species Diagnosis DNA barcoding Medusa Phylogeny Species delimitation Species description Synapomorphy Taxonomy |
title_short |
The importance of molecular characters when morphological variability hinders diagnosability: Systematics of the moon jellyfish genus Aurelia (Cnidaria: Scyphozoa) |
title_full |
The importance of molecular characters when morphological variability hinders diagnosability: Systematics of the moon jellyfish genus Aurelia (Cnidaria: Scyphozoa) |
title_fullStr |
The importance of molecular characters when morphological variability hinders diagnosability: Systematics of the moon jellyfish genus Aurelia (Cnidaria: Scyphozoa) |
title_full_unstemmed |
The importance of molecular characters when morphological variability hinders diagnosability: Systematics of the moon jellyfish genus Aurelia (Cnidaria: Scyphozoa) |
title_sort |
The importance of molecular characters when morphological variability hinders diagnosability: Systematics of the moon jellyfish genus Aurelia (Cnidaria: Scyphozoa) |
author |
Lawley, Jonathan W. |
author_facet |
Lawley, Jonathan W. Gamero-Mora, Edgar Maronna, Maximiliano M. Chiaverano, Luciano M. Stampar, Sérgio N. [UNESP] Hopcroft, Russell R. Collins, Allen G. Morandini, André C. |
author_role |
author |
author2 |
Gamero-Mora, Edgar Maronna, Maximiliano M. Chiaverano, Luciano M. Stampar, Sérgio N. [UNESP] Hopcroft, Russell R. Collins, Allen G. Morandini, André C. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Griffith University Instituto Nacional de Investigación y Desarrollo Pesquero Universidade Estadual Paulista (UNESP) University of Alaska-Fairbanks Smithsonian Institution |
dc.contributor.author.fl_str_mv |
Lawley, Jonathan W. Gamero-Mora, Edgar Maronna, Maximiliano M. Chiaverano, Luciano M. Stampar, Sérgio N. [UNESP] Hopcroft, Russell R. Collins, Allen G. Morandini, André C. |
dc.subject.por.fl_str_mv |
Cryptic species Diagnosis DNA barcoding Medusa Phylogeny Species delimitation Species description Synapomorphy Taxonomy |
topic |
Cryptic species Diagnosis DNA barcoding Medusa Phylogeny Species delimitation Species description Synapomorphy Taxonomy |
description |
Cryptic species have been detected across Metazoa, and while no apparent morphological features distinguish them, it should not impede taxonomists from formal descriptions. We accepted this challenge for the jellyfish genus Aurelia, which has a long and confusing taxonomic history. We demonstrate that morphological variability in Aurelia medusae overlaps across very distant geographic localities. Even though some morphological features seem responsible for most of the variation, regional geographic patterns of dissimilarities are lacking. This is further emphasized by morphological differences found when comparing lab-cultured Aurelia coerulea medusae with the diagnostic features in its recent redescription. Previous studies have also highlighted the difficulties in distinguishing Aurelia polyps and ephyrae, and their morphological plasticity. Therefore, mostly based on genetic data, we recognize 28 species of Aurelia, of which seven were already described, 10 are formally described herein, four are resurrected and seven remain undescribed. We present diagnostic genetic characters for all species and designate type materials for newly described and some resurrected species. Recognizing moon jellyfish diversity with formal names is vital for conservation efforts and other studies. This work clarifies the practical implications of molecular genetic data as diagnostic characters, and sheds light on the patterns and processes that generate crypsis. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-09-09 2022-04-28T19:44:37Z 2022-04-28T19:44:37Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.7717/peerj.11954 PeerJ, v. 9. 2167-8359 http://hdl.handle.net/11449/222414 10.7717/peerj.11954 2-s2.0-85114892852 |
url |
http://dx.doi.org/10.7717/peerj.11954 http://hdl.handle.net/11449/222414 |
identifier_str_mv |
PeerJ, v. 9. 2167-8359 10.7717/peerj.11954 2-s2.0-85114892852 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
PeerJ |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128788073021440 |