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MULTIPLE GENETIC LINKAGES BETWEEN FEMALE PREFERENCE AND MALE SIGNAL IN RAPIDLY SPECIATING HAWAIIAN CRICKETS
Author(s) -
Wiley Chris,
Shaw Kerry L.
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.1558-5646.2010.01007.x
Subject(s) - biology , coevolution , evolutionary biology , pleiotropy , sexual selection , variation (astronomy) , mate choice , trait , preference , genetic variation , genetics , mating , gene , phenotype , statistics , physics , mathematics , astrophysics , computer science , programming language
Diverging sexual communication systems can lead to the evolution of new species that no longer recognize each other as potential mates. The coevolution of male and female components of sexual communication is facilitated by physical linkage between genes underlying signals and preferences. By crossing two closely related Hawaiian crickets ( Laupala kohalensis and Laupala paranigra ) with vastly different song pulse rates and female preferences, and assessing segregation of songs and preferences among second generation backcrosses, we show a strong genetic correlation between song and preference variation. Furthermore, multiple, but not all, quantitative trait loci underlying song variation also predict female preferences. This physical linkage or pleiotropy may have facilitated the striking diversification of pulse rates observed among Laupala species in conjunction with one of the most rapid species radiations so far recorded.