Age and spread of the haplochromine cichlid fishes in Africa

Koblmüller, Stephan; Schliewen, Ulrich K.; Duftner, Nina; Sefc, Kristina M.; Katongo, Cyprian; Sturmbauer, Christian

doi:10.1016/j.ympev.2008.05.045

Cited by 90 publications

(124 citation statements)

References 69 publications

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“…Generally, most species with high dispersal potential lack sharp geographical differentiation (Roman and Palumbi, 2004;Ritz et al, 2008), and the headwater taxa are potentially highly susceptible to river capture (Koblmüller et al, 2008). Therefore, for Sy.…”

Section: Resultsmentioning

confidence: 99%

Comparative phylogeography of the Yellow River schizothoracine fishes (Cyprinidae): Vicariance, expansion, and recent coalescence in response to the Quaternary environmental upheaval in the Tibetan Plateau

Duan

Zhao

Peng

et al. 2009

Molecular Phylogenetics and Evolution

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Section: Resultsmentioning

confidence: 99%

Comparative phylogeography of the Yellow River schizothoracine fishes (Cyprinidae): Vicariance, expansion, and recent coalescence in response to the Quaternary environmental upheaval in the Tibetan Plateau

Duan

Zhao

Peng

et al. 2009

Molecular Phylogenetics and Evolution

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“…(a) Gene flow patterns can be explained through landscape evolution The age of haplochromine cichlid diversification is a highly debated topic [8,35,36]. The lack of reliable fossil and geological calibration points and the high amount of reticulate signal within the haplochromines make it difficult to calculate robust age estimates.…”

Section: Discussionmentioning

confidence: 99%

Repeated trans-watershed hybridization among haplochromine cichlids (Cichlidae) was triggered by Neogene landscape evolution

et al. 2012

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The megadiverse haplochromine cichlid radiations of the East African lakes, famous examples of explosive speciation and adaptive radiation, are according to recent studies, introgressed by different riverine lineages. This study is based on the first comprehensive mitochondrial and nuclear DNA dataset from extensive sampling of riverine haplochromine cichlids. It includes species from the lower River Congo and Angolan (River Kwanza) drainages. Reconstruction of phylogenetic hypotheses revealed the paradox of clearly discordant phylogenetic signals. Closely related mtDNA haplotypes are distributed thousands of kilometres apart and across major African watersheds, whereas some neighbouring species carry drastically divergent mtDNA haplotypes. At shallow and deep phylogenetic layers, strong signals of hybridization are attributed to the complex Late Miocene/Early Pliocene palaeohistory of African rivers. Hybridization of multiple lineages across changing watersheds shaped each of the major haplochromine radiations in lakes Tanganyika, Victoria, Malawi and the Kalahari Palaeolakes, as well as a miniature species flock in the Congo basin (River Fwa). On the basis of our results, introgression occurred not only on a spatially restricted scale, but massively over almost the whole range of the haplochromine distribution. This provides an alternative view on the origin and exceptional high diversity of this enigmatic vertebrate group.

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“…Cichlid lineages basal to Tropheus (Salzburger et al 2005; Koblmüller et al 2008; Schwarzer et al 2012) are sexually dimorphic in body size and color, with colorful territorial males and non-territorial, less conspicuously colored females. Sexual color and size dimorphism and male-only territoriality are also widespread in the “modern haplochromines” (Seehausen et al 1998; Konings 2003; Genner and Turner 2005) to which the tribe Tropheini belongs phylogenetically (Salzburger et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Territorial competition and the evolutionary loss of sexual size dimorphism

Odreitz

Sefc

2015

Behav Ecol Sociobiol

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Non-sexual social selection can underlie the evolution of sexually monomorphic phenotypes. A causal relationship between territorial competition and sexual monomorphism predicts that male and female competitors should employ similar contest behavior and that contest outcome should depend on the same traits in males and females. We test this prediction in a sexually monomorphic cichlid fish of the genus Tropheus, in which males and females defend individual feeding territories. Lineages basal to Tropheus are sexually dimorphic and have non-territorial females, suggesting that a switch to female territoriality and loss of sexual dimorphism occurred in the Tropheus lineage. We compare rates of agonistic behavior and the effects of body size asymmetries on competitive success between male-male and female-female contests in an experimental setup. Body size asymmetry had the same effect in male and female contests, being negatively correlated with contest duration and positively correlated with the probability of winning. Male and female winners employed the same rates of frontal and lateral displays as well as charges against their opponents. Contest duration was longer in females. In tied contests, females displayed more than males. Our data suggest that intraspecific contest competition for territories selects for large body size in both sexes and support a link between the evolution of female territoriality and the loss of sexual size dimorphism in Tropheus.Electronic supplementary materialThe online version of this article (doi:10.1007/s00265-014-1870-0) contains supplementary material, which is available to authorized users.

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Age and spread of the haplochromine cichlid fishes in Africa

Cited by 90 publications

References 69 publications

Comparative phylogeography of the Yellow River schizothoracine fishes (Cyprinidae): Vicariance, expansion, and recent coalescence in response to the Quaternary environmental upheaval in the Tibetan Plateau

Comparative phylogeography of the Yellow River schizothoracine fishes (Cyprinidae): Vicariance, expansion, and recent coalescence in response to the Quaternary environmental upheaval in the Tibetan Plateau

Repeated trans-watershed hybridization among haplochromine cichlids (Cichlidae) was triggered by Neogene landscape evolution

Territorial competition and the evolutionary loss of sexual size dimorphism

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