Cultural selection and genetic diversity in matrilineal whales.
Low diversities of mitochondrial DNA (mtDNA) have recently been found in four species of matrilineal whale. No satisfactory explanation for this apparent anomaly has been previously suggested. Culture seems to be an important part of the lives of matrilineal whales. The selection of matrilineally transmitted cultural traits, upon which neutral mtDNA alleles "hitchhike," has the potential to strongly reduce genetic variation. Thus, in contrast to other nonhuman mammals, culture may be an important evolutionary force for the matrilineal whales.
Whitehead
H
H
Department of Biology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4J1. hwhitehe@is.dal.ca
D000818:Animals; D001522:Behavior, Animal; D005075:Biological Evolution; D003198:Computer Simulation; D004272:DNA, Mitochondrial / Q000235:genetics*; D004289:Dolphins / Q000235:genetics / Q000502:physiology; D005260:Female; D014644:Genetic Variation; D008954:Models, Biological; D012641:Selection, Genetic; D014828:Vocalization, Animal; D014907:Whales / Q000235:genetics* / Q000502:physiology
D004272:DNA, Mitochondrial