Extensive MHC variability in cichlid fishes of Lake Malawi - PubMed (original) (raw)

. 1993 Jul 22;364(6435):330-4.

doi: 10.1038/364330a0.

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Extensive MHC variability in cichlid fishes of Lake Malawi

D Klein et al. Nature. 1993.

Abstract

Lake Malawi in East Africa harbours 500-1,000 endemic species of cichlid fishes, all presumably derived by adaptive radiation from a single founding population within the past two million years. The species of this 'flock' differ strikingly in their ecology and behaviour, moderately in their external morphology and very little in their molecular characteristics. Here we describe high sequence variability of class II major histocompatibility complex genes in a sample of species from Lake Malawi. The variability provides a set of molecular markers for studying adaptive radiation and should be useful for estimating the size of the population that founded the species flock.

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