A phylogenetic analysis of Brycon and Henochilus (Characiformes, Characidae, Bryconinae) based on the mitochondrial gene 16S rRNA

Genetics and Molecular Biology

Silva Hilsdorf²  Claudio Oliveira¹  Flávio César Thadeo De Lima¹  Cristianne Kayoko Matsumoto² 

[1] ,Universidade de Mogi das Cruzes Núcleo Integrado de Biotecnologia Laboratório de Genética de Peixes e AqüiculturaMogi das Cruzes SP ,Brazil

关键词: phylogeny;    molecular systematics;    mitochondrial DNA;    fish evolution;    systematic;   

DOI  :  10.1590/S1415-47572008000200034

来源: SciELO

【 摘 要 】

The genus Brycon, the largest subunit of the Bryconinae, has 42 valid species distributed from southern Mexico to the La Plata River in Argentina. Henochilus is a monotypic genus, comprising a single species (H. wheatlandii) found in the upper Rio Doce basin. In the present study, partial sequences of the mitochondrial gene 16S were obtained for fifteen species of Brycon and for Henochilus wheatlandii. The results showed that the genus Brycon is paraphyletic, since Henochilus is the sister-group of B. ferox and B. insignis. The most basal species analyzed were the trans-Andean species B. henni, B. petrosus, and B. chagrensis.

【 授权许可】

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