Classic clover cline clues

Matthew Olson, Nicholas Levsen

Research output: Contribution to journalArticle

Abstract

Adaptive clines are striking examples of natural selection in action, yet few have been studied in depth. In this issue of Molecular Ecology, Kooyers & Olsen (2012) introduce modern analyses and thinking towards studies of a classical example of the rapid and repeated evolution of latitudinal and altitudinal clines in cyanogenesis in white clover, Trifolium repens L. Recognizing that adaptive clines represent trade-offs in the selective benefits of traits at different ends of a geographical transect, these researchers focus on whether evidence for selection can be found at regional (coarse) and local (fine) scales. After adjusting for population genetic patterns generated by demographic processes, Kooyers and Olsen provide evidence that the cyanogenesis cline is adaptive across a transect from Louisiana to Wisconsin, USA. Within local populations, divergent selection on coupling dominant and recessive alleles that underlie cyanogenesis is predicted to drive populations to gametic phas
Original languageEnglish
Pages (from-to)2315-2317
JournalMolecular Ecology
StatePublished - May 2012

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    Olson, M., & Levsen, N. (2012). Classic clover cline clues. Molecular Ecology, 2315-2317.