It’s not what it looks like: molecular data fails to substantiate morphological differences in two sea hares (Mollusca, Heterobranchia, Aplysiidae) from southern Brazil

Species of sea hares have been recognized traditionally based on morphological traits, mainly the radula, external coloration, and reproductive anatomy. However, recent studies have shown substantial color variation in some sea slug species. Molecular data have been successfully used to differentiat...

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Autores principales: Saad, L.O., Cunha, C.M., Colpo, K.D., Valdés, Á.
Formato: JOUR
Materias:
16S
Aplysia
CO1
Morphological variation
anatomy
color
genetic analysis
molecular analysis
mollusc
morphology
morphotype
Brazil
Anaspidea
Aplysiidae
Heterobranchia
Mollusca
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_1438387X_v68_n4_p523_Saad
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_1438387X_v68_n4_p523_Saad
record_format dspace
spelling todo:paper_1438387X_v68_n4_p523_Saad2023-10-03T16:16:10Z It’s not what it looks like: molecular data fails to substantiate morphological differences in two sea hares (Mollusca, Heterobranchia, Aplysiidae) from southern Brazil Saad, L.O. Cunha, C.M. Colpo, K.D. Valdés, Á. 16S Aplysia CO1 Morphological variation anatomy color genetic analysis molecular analysis mollusc morphology morphotype Brazil Anaspidea Aplysia Aplysiidae Heterobranchia Mollusca Species of sea hares have been recognized traditionally based on morphological traits, mainly the radula, external coloration, and reproductive anatomy. However, recent studies have shown substantial color variation in some sea slug species. Molecular data have been successfully used to differentiate morphologically similar species of “opisthobranchs” and resolve questions on the taxonomic value of color. The objective of this paper is to use molecular data in an attempt to elucidate whether specimens of Aplysia brasiliana with distinct colorations and morphologies are actually the same species. To this end, DNA from 14 specimens of A. brasiliana was extracted, including five specimens identified as a distinct morphotype from typical A. brasiliana. Although the two morphotypes have consistent differences in their external morphology and radula, the molecular data confirmed that there are no significant genetic differences between them. This is another example of the need to re-evaluate taxonomic decisions based on morphology in light of molecular evidence. © 2014, Springer-Verlag Berlin Heidelberg and AWI. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_1438387X_v68_n4_p523_Saad
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 16S
Aplysia
CO1
Morphological variation
anatomy
color
genetic analysis
molecular analysis
mollusc
morphology
morphotype
Brazil
Anaspidea
Aplysia
Aplysiidae
Heterobranchia
Mollusca
spellingShingle 16S
Aplysia
CO1
Morphological variation
anatomy
color
genetic analysis
molecular analysis
mollusc
morphology
morphotype
Brazil
Anaspidea
Aplysia
Aplysiidae
Heterobranchia
Mollusca
Saad, L.O.
Cunha, C.M.
Colpo, K.D.
Valdés, Á.
It’s not what it looks like: molecular data fails to substantiate morphological differences in two sea hares (Mollusca, Heterobranchia, Aplysiidae) from southern Brazil
topic_facet 16S
Aplysia
CO1
Morphological variation
anatomy
color
genetic analysis
molecular analysis
mollusc
morphology
morphotype
Brazil
Anaspidea
Aplysia
Aplysiidae
Heterobranchia
Mollusca
description Species of sea hares have been recognized traditionally based on morphological traits, mainly the radula, external coloration, and reproductive anatomy. However, recent studies have shown substantial color variation in some sea slug species. Molecular data have been successfully used to differentiate morphologically similar species of “opisthobranchs” and resolve questions on the taxonomic value of color. The objective of this paper is to use molecular data in an attempt to elucidate whether specimens of Aplysia brasiliana with distinct colorations and morphologies are actually the same species. To this end, DNA from 14 specimens of A. brasiliana was extracted, including five specimens identified as a distinct morphotype from typical A. brasiliana. Although the two morphotypes have consistent differences in their external morphology and radula, the molecular data confirmed that there are no significant genetic differences between them. This is another example of the need to re-evaluate taxonomic decisions based on morphology in light of molecular evidence. © 2014, Springer-Verlag Berlin Heidelberg and AWI.
format JOUR
author Saad, L.O.
Cunha, C.M.
Colpo, K.D.
Valdés, Á.
author_facet Saad, L.O.
Cunha, C.M.
Colpo, K.D.
Valdés, Á.
author_sort Saad, L.O.
title It’s not what it looks like: molecular data fails to substantiate morphological differences in two sea hares (Mollusca, Heterobranchia, Aplysiidae) from southern Brazil
title_short It’s not what it looks like: molecular data fails to substantiate morphological differences in two sea hares (Mollusca, Heterobranchia, Aplysiidae) from southern Brazil
title_full It’s not what it looks like: molecular data fails to substantiate morphological differences in two sea hares (Mollusca, Heterobranchia, Aplysiidae) from southern Brazil
title_fullStr It’s not what it looks like: molecular data fails to substantiate morphological differences in two sea hares (Mollusca, Heterobranchia, Aplysiidae) from southern Brazil
title_full_unstemmed It’s not what it looks like: molecular data fails to substantiate morphological differences in two sea hares (Mollusca, Heterobranchia, Aplysiidae) from southern Brazil
title_sort it’s not what it looks like: molecular data fails to substantiate morphological differences in two sea hares (mollusca, heterobranchia, aplysiidae) from southern brazil
url http://hdl.handle.net/20.500.12110/paper_1438387X_v68_n4_p523_Saad
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