Tempo and rates of diversification in the South American cichlid genus Apistogramma (Teleostei: Perciformes: Cichlidae)

Abstract : Evaluating biodiversity and understanding the processes involved in diversification are noticeable conservation issues in fishes subject to large, sometimes illegal, ornamental trade purposes. Here, the diversity and evolutionary history of the Neotropical dwarf cichlid genus Apistogramma from several South American countries are investigated. Mitochondrial and nuclear markers are used to infer phylogenetic relationships between 31 genetically identified species. The monophyly of Apistogramma is suggested, and Apis-togramma species are distributed into four clades, corresponding to three morphological lineages. Divergence times estimated with the Yule process and an uncorrelated lognor-mal clock dated the Apistogramma origin to the beginning of the Eocene (% 50 Myr) suggesting that diversification might be related to marine incursions. Our molecular dating also suggests that the Quaternary glacial cycles coincide with the phases leading to Apis-togramma speciation. These past events did not influence diversification rates in the spe-ciose genus Apistogramma, since diversification appeared low and constant through time. Further characterization of processes involved in recent Apistogramma diversity will be necessary.
Complete list of metadatas

Cited literature [104 references]  Display  Hide  Download

Contributor : Gestionnaire Hal-Upmc <>
Submitted on : Tuesday, September 26, 2017 - 3:16:32 PM
Last modification on : Thursday, October 24, 2019 - 9:54:26 AM
Long-term archiving on : Wednesday, December 27, 2017 - 1:21:03 PM


Publisher files allowed on an open archive


Distributed under a Creative Commons Attribution 4.0 International License



Christelle Tougard, Carmen García Dávila, Uwe Römer, Fabrice Duponchelle, Frédérique Cerqueira, et al.. Tempo and rates of diversification in the South American cichlid genus Apistogramma (Teleostei: Perciformes: Cichlidae). PLoS ONE, Public Library of Science, 2017, 12 (9), pp.e0182618. ⟨10.1371/journal.pone.0182618⟩. ⟨hal-01593655⟩



Record views


Files downloads