Publications des scientifiques de l'IRD

Tougard C., Davila C. R. G., Romer U., Duponchelle Fabrice, Cerqueira F., Paradis Emmanuel, Guinand B., Chavez C. A., Salas V., Quérouil Sophie, Sirvas S., Renno Jean-François. (2017). Tempo and rates of diversification in the South American cichlid genus Apistogramma (Teleostei : Perciformes: Cichlidae). PLOS One, 12 (9), p. e0182618 [19 p.]. ISSN 1932-6203.

Titre du document
Tempo and rates of diversification in the South American cichlid genus Apistogramma (Teleostei : Perciformes: Cichlidae)
Année de publication
2017
Type de document
Article référencé dans le Web of Science WOS:000409282800006
Auteurs
Tougard C., Davila C. R. G., Romer U., Duponchelle Fabrice, Cerqueira F., Paradis Emmanuel, Guinand B., Chavez C. A., Salas V., Quérouil Sophie, Sirvas S., Renno Jean-François
Source
PLOS One, 2017, 12 (9), p. e0182618 [19 p.] ISSN 1932-6203
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 Apistogramma species are distributed into four clades, corresponding to three morphological lineages. Divergence times estimated with the Yule process and an uncorrelated lognormal clock dated the Apistogramma origin to the beginning of the Eocene (approximate to 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 Apistogramma speciation. These past events did not influence diversification rates in the speciose genus Apistogramma, since diversification appeared low and constant through time. Further characterization of processes involved in recent Apistogramma diversity will be necessary.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020] ; Limnologie biologique / Océanographie biologique [034] ; Ecologie, systèmes aquatiques [036] ; Géologie et formations superficielles [064]
Description Géographique
PEROU ; BRESIL ; VENEZUELA ; EQUATEUR ; BOLIVIE ; AMAZONIE, AMZONE
Localisation
Fonds IRD [F B010071000]
Identifiant IRD
fdi:010071000
Contact