title: Sexually antagonistic zygotic drive: a new form of genetic conflict between the sex chromosomes.
abstract: Sisters and brothers are completely unrelated with respect to the sex chromosomes they inherit from their heterogametic parent. This has the potential to result in a previously unappreciated form of genetic conflict between the sex chromosomes, called sexually antagonistic zygotic drive (SA-ZD). SA-ZD can arise whenever brothers and sisters compete over limited resources or there is brother-sister mating coupled with inbreeding depression. Although theory predicts that SA-ZD should be common and influence important evolutionary processes, there is little empirical evidence for its existence. Here we discuss the current understanding of SA-ZD, why it would be expected to elude empirical detection when present, and how it relates to other forms of genetic conflict.
authors.affiliation: Department of Evolutionary Biology, Uppsala University, 752 36 Uppsala, Sweden IFM Biology, Linköping University, 581 83 Linköping, Sweden.
authors.forename: Urban
authors.initials: U
authors.lastname: Friberg
authors.affiliation: Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, California 93111.
authors.forename: William R
authors.initials: WR
authors.lastname: Rice
mesh_terms: D005075:Biological Evolution; D003220:Conflict, Psychological; D003241:Consanguinity; D005260:Female; D006801:Humans; D008297:Male; D008957:Models, Genetic; D012730:Sex Chromosomes / Q000235:genetics*; D012801:Sibling Relations