DNA barcoding of Podonomus (Chironomidae, Podonominae) enables stage association of a named species and reveals hidden diversity in Brazilian inselbergs

¹ Laboratório de Ecologia de Insetos Aquáticos (LEIA), Departamento de Hidrobiologia, Universidade Federal de São Carlos, São Carlos, Cx. Postal: 676, CEP 13565-905, SP, Brazil
² Departamento de Ecologia, Universidade Estadual Paulista, Avenida 24-A,1515, CEP13506-900, Rio Claro, SP, Brazil
³ Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, CCBS, Cidade Universitária, Caixa Postal 549, CEP 79070-900, Campo Grande, MS, Brazil

Received: 24 May 2012
Accepted: 14 November 2012

Abstract

Podonomus Philippi was recently found in Brazilian inselbergs. In this study, we used sequences from the barcode region of cytochrome c oxidase I (COI) to assess Podonomus molecular diversity from mountains in Southeastern Brazil. Our results revealed the adult female and the larvae of Podonomus pepinellii Roque and Trivinho-Strixino, 2004 and extended the known geographical distribution of the species. Moreover, we found high molecular divergence in two populations located in the Serra da Mantiqueira and Serra do Espinhaço mountain range when compared with the only species recorded to Brazil, indicating the possibility of two more species to be described.