Science doi: 10.1126/science.1174705 ( 2009 ) Male cichlid fishes in East Africa's Lake Malawi have evolved striking coloration (top right) to compete for females. The objects of their affections, meanwhile, tend to sport inconspicuous brown scales (top left). An exception is the 'orange-blotch' trait, which is found almost exclusively in females (bottom left) and provides them with camouflage. When it does occur in males, it disrupts their patterning (bottom right), reducing their fitness. Thomas Kocher and his colleagues at the University of Maryland in College Park have found that this trait is caused by a mutation in the Pax7 gene, which is tightly linked to a new female-sex-determining gene. The close linkage between the mutated gene and the female sex determiner ensures that orange-blotch is expressed mainly in females. Such sexual conflicts can lead to the evolution of new sex-determining systems and many other traits, the team suggests.
Evolution: Boys against girls
Abstract
Science doi: 10.1126/science.1174705 ( 2009 ) Male cichlid fishes in East Africa's Lake Malawi have evolved striking coloration (top right) to compete for females. The objects of their affections, meanwhile, tend to sport inconspicuous brown scales (top left). An exception is the 'orange-blotch' trait, which is found almost exclusively in females (bottom left) and provides them with camouflage. When it does occur in males, it disrupts their patterning (bottom right), reducing...End of preview. The entire article is 1 page. To view the full-text, please rent this article to continue.
/lp/nature-publishing-group-npg/evolution-boys-against-girls-YSg0qevE0A
Welcome to DeepDyve! Rent Premier Research Articles and Save Up to 90%
Evolution: Boys against girls
More Info
More Like This Article
View All dataSource[]=actageo&dataSource[]=aspet&dataSource[]=aaos&dataSource[]=aacc&dataSource[]=aacr&dataSource[]=aea&dataSource[]=aip&dataSource[]=ajnr&dataSource[]=ams&dataSource[]=aps_physical&dataSource[]=appi_book&dataSource[]=appi_journal&dataSource[]=apha&dataSource[]=asip&dataSource[]=asm&dataSource[]=asn&dataSource[]=aspb&dataSource[]=avs&dataSource[]=annual_reviews&dataSource[]=arxiv&dataSource[]=acm&dataSource[]=berghahn&dataSource[]=cabi&dataSource[]=clinical_trials&dataSource[]=dailymed&dataSource[]=degruyter&dataSource[]=du_press&dataSource[]=esa&dataSource[]=eu_press&dataSource[]=elsevier&dataSource[]=emerald&dataSource[]=ejtr&dataSource[]=emea&dataSource[]=epo&dataSource[]=faseb&dataSource[]=gsa&dataSource[]=health_affairs&dataSource[]=hindawi&dataSource[]=imanager&dataSource[]=imedpub&dataSource[]=informa_healthcare&dataSource[]=informs&dataSource[]=iop&dataSource[]=iucr&dataSource[]=iospress&dataSource[]=jbjs&dataSource[]=leftcoast&dataSource[]=lu_press&dataSource[]=mesharpe&dataSource[]=mary_ann_liebert&dataSource[]=medline&dataSource[]=mit_press&dataSource[]=nature&dataSource[]=oxford&dataSource[]=pier_professional&dataSource[]=pnas&dataSource[]=portlandpress&dataSource[]=psyc_articles&dataSource[]=psyc_books&dataSource[]=psyc_critiques&dataSource[]=plos_journal&dataSource[]=pubmed_central&dataSource[]=rsna&dataSource[]=rockefeller&dataSource[]=rcn&dataSource[]=ria&dataSource[]=rsc&dataSource[]=sage&dataSource[]=spie&dataSource[]=springer_journal&dataSource[]=springer&dataSource[]=taylor_francis&dataSource[]=aps&dataSource[]=the_scientist&dataSource[]=uc_press&dataSource[]=uspto_abstract&dataSource[]=wiley&dataSource[]=pct
© 2012 DeepDyve, Inc. All rights reserved.
Terms of Service | Privacy Policy
