Cichlid fishes constitute one of the most species-rich families of vertebrates. In addition to
complex social behaviour and morphological versatility, they are characterised by extensive …

Fishes of the family Cichlidae are famous for their spectacular species flocks and therefore
constitute a model system for the study of the pathways of adaptive radiation. Their radiation …

Genetic adaptation and phenotypic plasticity are two ways in which organisms can adapt to
local environmental conditions. We examined genetic and plastic variation in gill and brain …

African cichlid fishes are known for their high rates of phenotypic evolution. A rapid rate of
diversification is apparent also in the diversity of their sex chromosomes. To date, sex …

Studies of cichlid evolution have highlighted the importance of visual pigment genes in the
spectacular radiation of the African rift lake cichlids. Recent work, however, has also …

The Haplochromini are by far the most species-rich cichlid fish tribe that originated along
with the so-called primary radiation of the Lake Tanganyika cichlid species flock, ie at the …

Large African barbs of the genus Labeobarbus constitute a hexaploid lineage (2n= 150).
This group is widely distributed in African freshwaters, and exhibits profound phenotypic …

The hypothesis of ecological divergence giving rise to premating isolation in the face of
gene flow is controversial. However, this may be an important mechanism to explain the …

Cichlid fishes are the most species-rich group of all teleost fishes. Their diversity is centered
in the East African Great Lakes where more than 2,000 species evolved within the past 10 …

If alternative phenotypes in polymorphic populations do not mate randomly, they can be
used as model systems to study adaptive diversification and possibly the early stages of …