Molecular phylogeny and biogeographic history of the Neotropical tribe Glandulocaudini (Characiformes: Characidae: Stevardiinae)

Author(s)

Priscila Camelier ^[1] ; Naércio Aquino Menezes ^[2] ; Guilherme José Costa-Silva ; Claudio Oliveira ^[4]

Affiliation

^[1] Univ Sao Paulo, Museu Zool, Lab Ictiol, Av Nazare 481, BR-04263000 Sao Paulo, SP - Brazil

^[2] Universidade de São Paulo. Museu de Zoologia. Laboratório de Ictiologia - Brasil

^[4] Univ Estadual Paulista, Inst Biociencias, Dept Morfol, Lab Biol & Genet Peixes, BR-18618970 Botucatu, SP - Brazil

• Document type: Journal article
• Source: Neotropical Ichthyology; v. 16, n. 1 2018-03-26.

Abstract

ABSTRACT Although former studies on systematics and biogeography represent a progress on the knowledge of the tribe Glandulocaudini, none was grounded on molecular evidence. Thus, the first hypothesis of relationships for the tribe based on a multilocus analysis is presented, including all genera and most of the valid species. DNA sequences of Glandulocauda caerulea and Mimagoniates sylvicola were analyzed for the first time. A molecular clock analysis was used to estimate the origin of the Glandulocaudini and the approximate timing of cladogenetic events within the group. Glandulocaudini was recovered as monophyletic. No hypothesis recovered Glandulocauda as monophyletic, since G. melanopleura is sister to Lophiobrycon weitzmani while G. caerulea is closely related to Mimagoniates. The relationships within the latter genus were resolved. The molecular clock results indicate the origin of the Glandulocaudini during the Miocene with diversification in the group occurring from Neogene to Pleistocene. These results corroborated the hypothesis that its origin took place on the Brazilian crystalline shield with the subsequent occupation of the Atlantic Coastal drainages. Apparently, Pleistocene sea-level fluctuations might have shaped the distribution pattern of some species in Glandulocaudini. (AU)

• FAPESP's process: 12/00840-6 - Speciation and biogeography in the genera Glandulocauda Eigenmann and Mimagoniates Regan (Characiformes: Characidae: Glandulocaudinae)
• Grantee: Priscila Camelier de Assis Cardoso
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 11/50282-7 - An inventory of the Characiform fish fauna (Teleostei, Ostariophysi) from South America
• Grantee: Naercio Aquino Menezes
• Support Opportunities: BIOTA-FAPESP Program - Thematic Grants
• FAPESP's process: 14/26508-3 - Phylogeny of the hyperdiverse order Characiformes (Teleostei: Ostariophysi) using ultraconserved elements
• Grantee: Claudio de Oliveira
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 16/03966-1 - Comparative phylogeography of freshwater fishes from the Atlantic Forest: a multilocus analysis in representatives of the family Characidae (Teleostei: Characiformes)
• Grantee: Priscila Camelier de Assis Cardoso
• Support Opportunities: Scholarships in Brazil - Post-Doctoral