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The Journal of Heredity 1997:88(1):42-46
© 1997 The American Genetic Association 88:42-46

research-article

Inheritance of Pale Flower, Calyx Spotting, and Glandular Pubescence in Mimulus guttatus × M. platycalyx Progenies

J. Dole, and R. Kesseli

Department of Biology, Illinois State University, Normal, Illinois and the Department of Botany, University of California Davis, California
Department of Biology, University of Massachusetts Boston. Massachusetts

Abstract

Despite growing interest in the Mimulus guttatus complex as a model for evolutionary studies of wild herbaceous plants, few examples of major genes controlling morphological variation have been described. We examined the inheritance of several candidate traits in experimental crosses between the closely related species M. gultatus and M. platycalyx. A pale flower color morph was found to be controlled by a single recessive gene, designated p/p. Despite bimodal distribution in segregating populations, calyx spotting and glandular pubescence failed to consistently fit Mendelian ratios. However, analysis of the pattern of variation within F3 families indicated the presence of a single to few major genes or leading factors responsible for segregation variation for both traits. There was no evidence for linkage among loci controlling these traits.


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J. Dole and D. F. Weber
Detection of Quantitative Trait Loci Influencing Recombination Using Recombinant Inbred Lines
Genetics, December 1, 2007; 177(4): 2309 - 2319.
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