Ontology highlight
ABSTRACT:
SUBMITTER: Ser JR
PROVIDER: S-EPMC3176681 | biostudies-literature | 2010 Feb
REPOSITORIES: biostudies-literature
Evolution; international journal of organic evolution 20091023 2
Several models have been proposed to suggest how the evolution of sex-determining mechanisms might contribute to speciation. Here, we describe the inheritance of sex in 19 fish species from the rapidly evolving flock of cichlids in Lake Malawi, Africa. We found that many of these species have a male heterogametic (XY) system on linkage group 7. Some species also segregate for a female heterogametic (ZW) system on linkage group 5 that is coincident with a dominant orange-blotch (OB) color pattern ...[more]