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A JOINT INDEX FOR THE INTENSITY OF SEX‐SPECIFIC SELECTION
Author(s) -
Innocenti Paolo,
Morrow Edward H.
Publication year - 2010
Publication title -
evolution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.84
H-Index - 199
eISSN - 1558-5646
pISSN - 0014-3820
DOI - 10.1111/j.1558-5646.2010.01021.x
Subject(s) - biology , sexual dimorphism , trait , selection (genetic algorithm) , extant taxon , evolutionary biology , sexual selection , metric (unit) , index (typography) , directional selection , zoology , genetic variation , genetics , machine learning , computer science , operations management , world wide web , gene , economics , programming language
A growing body of experimental and field data shows that selective pressures often differ between males and females. Surprisingly, to date, little attempt has been made to formalize a metric expressing the relative behavior of directional selection in the two sexes. We propose an index that describes the extent to which concordant or antagonistic selection is operating between the sexes for a given trait. This joint index could prove especially useful for the study of intralocus sexual conflict and the evolution of sexual dimorphism, providing a common scale to directly compare different traits within or among taxonomic levels, and allowing an assessment on how common sexually antagonistic selection might be in extant populations.