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Phylogenetic relationships within Hypostomus (Siluriformes : Loricariidae) and related genera based on mitochondrial D-loop sequences

Phylogenetic relationships within Hypostomus (Siluriformes : Loricariidae) and related genera based on mitochondrial D-loop sequences

Authors :
Pierre-Yves Le Bail
Juan I. Montoya-Burgos
Claude Weber
Station commune de Recherches en Ichtyophysiologie, Biodiversité et Environnement (SCRIBE)
Institut National de la Recherche Agronomique (INRA)
ProdInra, Migration
Source :
Revue Suisse de Zoologie, Revue Suisse de Zoologie, Muséum d'histoire naturelle, 2002, 109 (2), pp.369-382
Publication Year :
2002
Publisher :
HAL CCSD, 2002.

Abstract

The complete D-loop sequence was obtained from 23 Hypostomus and 12 other species belonging to eight genera, from which seven are closely related to Hypostomus. The phylogenetic analysis of these sequences indicates that the genus Hypostomus is polyphyletic due to the exclusion of H. emarginatus and H. squalinus from the main Hypostomus clade. Moreover, this main Hypostomus clade includes all Cochliodon species examined here, indicating that Cochliodon can be considered as a subjective junior synonym of Hypostomus. This conclusion is also supported by the placement of Hypostomus fonchii within the Cochliodon clade, implying that the synapomorphic characters diagnosing Cochliodon are unfounded. Based on these results, a new vision of Hypostomus is proposed. Furthermore, our results confirm the previously reported polyphyly of Ancistrinae and question the monophyletic status of Hemiancistrus.

Details

Language :
English
ISSN :
0035418X
Database :
OpenAIRE
Journal :
Revue Suisse de Zoologie, Revue Suisse de Zoologie, Muséum d'histoire naturelle, 2002, 109 (2), pp.369-382
Accession number :
edsair.doi.dedup.....f7571f5cfaa99c348c4d19f7b9cbc9ee