Conflict on the sex chromosomes: cause, effect, and complexity
Cold Spring Harbor Perspectives in Biology
Cold Spring Harbor Laboratory Press
Intralocus sexual conflict and intragenomic conflict both affect sex chromosome evolution and can in extreme cases even cause the complete turnover of sex chromosomes. Additionally, established sex chromosomes often become the focus of heightened conflict. This creates a tangled relationship between sex chromosomes and conflict with respect to cause and effect. To further complicate matters, sexual and intragenomic conflict may exacerbate one another and thereby further fuel sex chromosome change. Different magnitudes and foci of conflict offer potential explanations for lineage-specific variation in sex chromosome evolution and answer long-standing questions as to why some sex chromosomes are remarkably stable, whereas others show rapid rates of evolutionary change.
J.E.M. is supported by the European Research Council (grant agreement 260233) and a short-term fellowship from the Wissenschaftskolleg zu Berlin. D.J.H. is supported by the University of Exeter, and N.W. by the University of Exeter and The Royal Society (Wolfson Award).
Published online 3 October 2014