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dc.contributor.authorScoville, Alison G.
dc.contributor.authorWha Lee, Young
dc.contributor.authorWillis, John H.
dc.contributor.authorKelly, John K.
dc.identifier.citationScoville, A., Lee, Y. W., Willis, J. H., & Kelly, J. K. (2009). Contribution of chromosomal polymorphisms to the G-matrix of Mimulus guttatus. The New Phytologist, 183(3), 803–815.
dc.descriptionThis is the peer reviewed version of the following article: Scoville, A., Lee, Y. W., Willis, J. H., & Kelly, J. K. (2009). Contribution of chromosomal polymorphisms to the G-matrix of Mimulus guttatus. The New Phytologist, 183(3), 803–815., which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.en_US
dc.description.abstractEvolution of genetic (co)variances (the G-matrix) fundamentally influences multitrait divergence. Here, we isolated the contribution of two chromosomal quantitative trait loci (QTLs), a meiotic drive locus and a polymorphic inversion, to the overall G-matrix for a suite of floral, phenological and male fitness traits in a population of Mimulus guttatus. This allowed us to predict the evolution of trait means and genetic (co)variances as a function of allele frequencies, and to evaluate theories about the maintenance of genetic variation in fitness. Individuals generated using a replicated F2 breeding design were grown under common conditions, genotyped and measured for trait values. Significant additive genetic variance existed for all traits, and most genetic covariances were significantly nonzero. Both QTLs contribute to the additive genetic (co)variances of multiple traits. Pleiotropy was not generally consistent, either between QTLs or with the genetic background. Shifts in allele frequencies at either QTL are predicted to result in substantial changes in the G-matrix. Both QTLs contribute substantially to the genetic variation in pollen viability. The Drive QTL, and perhaps also the inversion, demonstrates the contribution of balancing selection to the maintenance of genetic variation in fitness.en_US
dc.subjectGenetic constraintsen_US
dc.subjectMimulus guttatusen_US
dc.subjectQuantitative trait loci (QTLs)en_US
dc.titleContribution of chromosomal polymorphisms to the G-matrix of Mimulus guttatusen_US
kusw.kudepartmentEcology and Evolutionary Biologyen_US
kusw.oaversionScholarly/refereed, author accepted manuscripten_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US

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