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Evolutionary history of the Lake Tanganyika cichlid tribe Lamprologini (Teleostei: Perciformes) derived from mitochondrial and nuclear DNA data

Content Provider	PubMed Central
Author	Christian, Sturmbauer Walter, Salzburger Nina, Duftner Schelly, Robert Stephan, Koblmüller
Copyright Year	2010
Abstract	Lake Tanganyika comprises a cichlid species flock with substrate-breeding and mouthbrooding lineages. While sexual selection via mate choice on male mating color is thought to boost speciation rates in mouthbrooding cichlids, this is not the case in substrate-breeding lamprologines, which mostly form stable pairs and lack sexual dichromatism. We present a comprehensive reconstruction of the evolution of the cichlid tribe Lamprologini, based upon mtDNA sequences and multilocus nuclear DNA (AFLP) markers. Twelve mtDNA clades were identified, seven of which were corroborated by the AFLP tree. The radiation is likely to have started about 5.3 MYA, contemporarily with that of the mouthbrooding C-lineage, and probably triggered by the onset of deep-water conditions in Lake Tanganyika. Neither the Congo- nor the Malagarazi River species form the most ancestral branch. Several conflicts in the mtDNA phylogeny with taxonomic assignments based upon color, eco-morphology and behavior could be resolved and complemented by the AFLP analysis. Introgressive hybridization upon secondary contact seems to be the most likely cause for paraphyly of taxa due to mtDNA capture in species involving brood-care helpers, while accidental hybridization best explains the para- or polyphyly of several gastropod shell breeders. Taxonomic error or paraphyly due to the survival of ancestral lineages appear responsible for inconsistencies in the genera Lamprologus and Neolamprologus.
Related Links	http://dx.doi.org/10.1016/j.ympev.2010.06.018
Ending Page	284
Page Count	19
Starting Page	266
File Format	PDF
ISSN	10557903
e-ISSN	10959513
Journal	Molecular Phylogenetics and Evolution
Issue Number	1
Volume Number	57
Language	English
Publisher	Academic Press
Publisher Date	2010-10-01
Access Restriction	Open
Rights Holder	Academic Press
Subject Keyword	Genetics Ecology, Evolution, Behavior and Systematics Molecular Biology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Genetics Molecular Biology Ecology, Evolution, Behavior and Systematics

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Evolutionary history of the Lake Tanganyika cichlid tribe Lamprologini (Teleostei: Perciformes) derived from mitochondrial and nuclear DNA data

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