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Molecular and morphological evidence that Phymactis papillosa from Argentina is, in fact, a new species of the genus Bunodosoma (Cnidaria: Actiniidae)

Published online by Cambridge University Press:  14 December 2011

Paula Braga Gomes ,
Renata Schama  and
Antônio Mateo Solé-Cava
Paula Braga Gomes
Affiliation:
Grupo de Pesquisa em Antozoários (GPA), Departamento de Biologia, Universidade Federal Rural de Pernambuco, R. Don Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE, 52.171-900, Brazil
Renata Schama
Affiliation:
Laboratório de Biodiversidade Molecular, Instituto de Biologia, CCS, Bloco A, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brazil
Antônio Mateo Solé-Cava*
Affiliation:
Laboratório de Biodiversidade Molecular, Instituto de Biologia, CCS, Bloco A, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brazil
*
Correspondence should be addressed to: A.M. Solé-Cava, Laboratório de Biodiversidade Molecular, Instituto de Biologia, CCS, Bloco A, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brazil email: sole@biologia.com.br
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Abstract

Phymactis papillosa is a rocky shore sea anemone that is commonly found in the Pacific Ocean, from the Gulf of California to Tierra del Fuego, and in the Mar del Plata region, Argentina. The genus Phymactis is closely related to Bunodosoma and, due to character plasticity, a number of misidentifications have occurred. Therefore, the presence of P. papillosa in Argentina has been doubted but the matter had not been investigated in detail. Here we analyse P. papillosa specimens from Argentina and compare them, using molecular and morphological markers, to specimens from the species' type locality. In a phylogenetic analysis using 19 allozyme markers and ribosomal internal transcribed spacers sequences of different sea anemone genera, including all West Atlantic Bunodosoma species, we have found that the specimens from Argentina were genetically divergent from P. papillosa from Chile and closely related to West Atlantic Bunodosoma species. The genetic and morphological analyses indicate that those specimens belong to a new species of the genus Bunodosoma, described here as B. zamponii sp. nov.

Keywords

allozymesribosomalinternal transcribed spacerphylogenyspecific statusActiniarianew species
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 92 , Issue 5 , August 2012 , pp. 895 - 910
Copyright
Copyright © Marine Biological Association of the United Kingdom 2011

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