XY FEMALES DO BETTER THAN THE XX IN THE AFRICAN PYGMY MOUSE, MUS MINUTOIDES

• Published in: Evolution Vol. 68; no. 7; pp. 2119 - 2127
• Main Authors: Saunders, Paul A., Perez, Julie, Rahmoun, Massilva, Ronce, Ophélie, Crochet, Pierre-André, Veyrunes, Frédéric
• Format: Journal Article
• Language: English
• Published: United States Blackwell Publishing Ltd 01.07.2014; Wiley Subscription Services, Inc; Oxford University Press
• Subjects: Animals; Breeding; Breeding performance; BRIEF COMMUNICATION; Chromosomes; Evolution; Evolution, Molecular; Evolutionary biology; Female; Female animals; Genes; Genotypes; life-history traits; Litter size; Male; Mammals; Mice - genetics; Mus minutoides; Mutation; P values; Reproduction; Rodents; sex chromosome evolution; Sex chromosomes; Sex Determination Processes - genetics; sex-determination system; sex-reversed females; Sexes; X chromosome; X Chromosome - genetics; Y Chromosome - genetics; sex-reversed females; life-history traits; sex chromosome evolution; Breeding performance; sex-determination system; X chromosome

All therian mammals have a similar XY/XX sex-determination system except for a dozen species. The African pygmy mouse, Mus minutoides, harbors an unconventional system in which all males are XY, and there are three types of females: the usual XX but also XX* and X*Y ones (the asterisk designates a s...