Molecular systematics and patterns of morphological evolution in the Centropagidae (Copepoda: Calanoida) of Argentina

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Recent studies have shown the value of complementing standard taxonomy with genetic analyses to reveal cryptic diversity and to aid in the understanding of patterns of evolution. We surveyed variation in the COI mitochondrial gene in members of the three genera of centropagid copepods from the inlan...

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Autores principales: Adamowicz, S.J., Menu-Marque, S., Hebert, P.D.N., Purvis, A.
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 2007
Materias:
Atavism
Bayesian analysis
Character evolution
Crustacea
Limb evolution
Mitochondrial DNA
Oligomerization
Phylogeny
South America
Zooplankton
crustacean
genetic analysis
genetic variation
mitochondrial DNA
molecular analysis
morphology
phylogeny
taxonomy
Argentina
Boeckella
Boeckella poppei
Calanoida
Centropagidae
Copepoda
Parabroteas
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00244066_v90_n2_p279_Adamowicz
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paperaa:paper_00244066_v90_n2_p279_Adamowicz
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spelling paperaa:paper_00244066_v90_n2_p279_Adamowicz2023-06-12T16:44:58Z Molecular systematics and patterns of morphological evolution in the Centropagidae (Copepoda: Calanoida) of Argentina Biol. J. Linn. Soc. 2007;90(2):279-292 Adamowicz, S.J. Menu-Marque, S. Hebert, P.D.N. Purvis, A. Atavism Bayesian analysis Character evolution Crustacea Limb evolution Mitochondrial DNA Oligomerization Phylogeny South America Zooplankton crustacean genetic analysis genetic variation mitochondrial DNA molecular analysis morphology phylogeny taxonomy Argentina South America Boeckella Boeckella poppei Calanoida Centropagidae Copepoda Crustacea Parabroteas Recent studies have shown the value of complementing standard taxonomy with genetic analyses to reveal cryptic diversity and to aid in the understanding of patterns of evolution. We surveyed variation in the COI mitochondrial gene in members of the three genera of centropagid copepods from the inland waters in Argentina. In general, we found a close association between molecular and morphological systematics in this group. Similar to findings for marine calanoids, genetic distances within Boeckella species were modest (< 4%), while distances among morphospecies were much larger (> 11%). Parabroteas is currently monotypic, although we detected cryptic genetic diversity, with two lineages showing 5.5% divergence. In contrast, Karukinka was not a valid genus, apparently representing an interesting and atavistic offshoot of B. poppei, a result reinforcing the value of considering both morphological and molecular evidence. Moreover, we used combined genetic and morphological information, analysed with maximum likelihood methods, to evaluate the common assumption that evolution tends to proceed via the loss of structures in crustaceans. Although analysis of other taxa and character types is required to evaluate fully the reduction hypothesis, our results suggest that structures may be gained readily as well as lost. © 2007 The Linnean Society of London. Fil:Menu-Marque, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2007 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00244066_v90_n2_p279_Adamowicz
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Inglés
orig_language_str_mv eng
topic Atavism
Bayesian analysis
Character evolution
Crustacea
Limb evolution
Mitochondrial DNA
Oligomerization
Phylogeny
South America
Zooplankton
crustacean
genetic analysis
genetic variation
mitochondrial DNA
molecular analysis
morphology
phylogeny
taxonomy
Argentina
South America
Boeckella
Boeckella poppei
Calanoida
Centropagidae
Copepoda
Crustacea
Parabroteas
spellingShingle Atavism
Bayesian analysis
Character evolution
Crustacea
Limb evolution
Mitochondrial DNA
Oligomerization
Phylogeny
South America
Zooplankton
crustacean
genetic analysis
genetic variation
mitochondrial DNA
molecular analysis
morphology
phylogeny
taxonomy
Argentina
South America
Boeckella
Boeckella poppei
Calanoida
Centropagidae
Copepoda
Crustacea
Parabroteas
Adamowicz, S.J.
Menu-Marque, S.
Hebert, P.D.N.
Purvis, A.
Molecular systematics and patterns of morphological evolution in the Centropagidae (Copepoda: Calanoida) of Argentina
topic_facet Atavism
Bayesian analysis
Character evolution
Crustacea
Limb evolution
Mitochondrial DNA
Oligomerization
Phylogeny
South America
Zooplankton
crustacean
genetic analysis
genetic variation
mitochondrial DNA
molecular analysis
morphology
phylogeny
taxonomy
Argentina
South America
Boeckella
Boeckella poppei
Calanoida
Centropagidae
Copepoda
Crustacea
Parabroteas
description Recent studies have shown the value of complementing standard taxonomy with genetic analyses to reveal cryptic diversity and to aid in the understanding of patterns of evolution. We surveyed variation in the COI mitochondrial gene in members of the three genera of centropagid copepods from the inland waters in Argentina. In general, we found a close association between molecular and morphological systematics in this group. Similar to findings for marine calanoids, genetic distances within Boeckella species were modest (< 4%), while distances among morphospecies were much larger (> 11%). Parabroteas is currently monotypic, although we detected cryptic genetic diversity, with two lineages showing 5.5% divergence. In contrast, Karukinka was not a valid genus, apparently representing an interesting and atavistic offshoot of B. poppei, a result reinforcing the value of considering both morphological and molecular evidence. Moreover, we used combined genetic and morphological information, analysed with maximum likelihood methods, to evaluate the common assumption that evolution tends to proceed via the loss of structures in crustaceans. Although analysis of other taxa and character types is required to evaluate fully the reduction hypothesis, our results suggest that structures may be gained readily as well as lost. © 2007 The Linnean Society of London.
format Artículo
Artículo
publishedVersion
author Adamowicz, S.J.
Menu-Marque, S.
Hebert, P.D.N.
Purvis, A.
author_facet Adamowicz, S.J.
Menu-Marque, S.
Hebert, P.D.N.
Purvis, A.
author_sort Adamowicz, S.J.
title Molecular systematics and patterns of morphological evolution in the Centropagidae (Copepoda: Calanoida) of Argentina
title_short Molecular systematics and patterns of morphological evolution in the Centropagidae (Copepoda: Calanoida) of Argentina
title_full Molecular systematics and patterns of morphological evolution in the Centropagidae (Copepoda: Calanoida) of Argentina
title_fullStr Molecular systematics and patterns of morphological evolution in the Centropagidae (Copepoda: Calanoida) of Argentina
title_full_unstemmed Molecular systematics and patterns of morphological evolution in the Centropagidae (Copepoda: Calanoida) of Argentina
title_sort molecular systematics and patterns of morphological evolution in the centropagidae (copepoda: calanoida) of argentina
publishDate 2007
url http://hdl.handle.net/20.500.12110/paper_00244066_v90_n2_p279_Adamowicz
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AT purvisa molecularsystematicsandpatternsofmorphologicalevolutioninthecentropagidaecopepodacalanoidaofargentina
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