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|a eng
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|a Spreitzer, Maria Luise
|e verfasserin
|4 aut
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| 245 |
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|a Genetic and morphological population differentiation in the rock-dwelling and specialized shrimp-feeding cichlid fish species Altolamprologus compressiceps from Lake Tanganyika, East Africa
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|c 2012
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|a Text
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|a ohne Hilfsmittel zu benutzen
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|b nc
|2 rdacarrier
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|a Date Revised 30.03.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a With about 250 endemic species, Lake Tanganyika contains an extraordinarily diverse cichlid fish fauna, and thus represents an ideal model system for the study of pathways and processes of speciation. The Lamprologini form the most species-rich tribe in Lake Tanganyika comprising about 100 species in seven genera, most of which are endemic to the lake. They are territorial substrate-breeders and represent a monophyletic tribe. By combined analysis of population genetics and geometric morphometric markers, we assessed gene flow among three populations of the highly specialized shrimp-feeding rock-dweller Altolamprologus compressiceps, separated by geographic distance and ecological barriers. Five highly polymorphic microsatellite markers were analyzed in conjunction with 17 landmarks in order to compare genetic differences to body shape differences among populations. Both genetic and morphological analyses revealed significant differentiation among the three studied populations. A significant, but overall relatively low degree of genetic differentiation supports a very recent divergence. Phenotypic differentiation was primarily found in the head region of A. compressiceps. In agreement with findings in other cichlid species, similar adaptations to specialized feeding mechanisms can consequently lead to marginal shape changes in the trophic apparatus
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|a Journal Article
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|a Geometric morphometrics
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| 650 |
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|a Lamprologini
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| 650 |
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|a Microsatellites
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| 650 |
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|a Population differentiation
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|a Speciation
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|a Zambia
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|a Mautner, Selma
|e verfasserin
|4 aut
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|a Makasa, Lawrence
|e verfasserin
|4 aut
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| 700 |
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|a Sturmbauer, Christian
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Hydrobiologia
|d 1982
|g 682(2012), 1 vom: 03., Seite 143-154
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|g year:2012
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|g day:03
|g pages:143-154
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