The quantitative genetics of floral characters in Mimulus guttatus
نویسندگان
چکیده
منابع مشابه
Pollen limitation and natural selection on floral characters in the yellow monkeyflower, Mimulus guttatus.
In flowering plants, pollen limitation has been proposed to intensify selection on floral characters important in pollinator attraction, but may also select for traits that increase seed set through autonomous selfing. Here, a factorial design (+/- pollen addition, +/- pollinator removal) was used to investigate how the pollination environment affects selection on floral morphology via female f...
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Insect herbivory is a major driving force of plant evolution. Phenotypic plasticity and developmental variation provide a means for plants to cope with variable herbivory. We characterized the genetics of developmental variation and phenotypic plasticity in trichome density, a putative defensive trait of Mimulus guttatus (yellow monkeyflower). Our results are evaluated in relation to the optima...
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iii ACKNOWLEDGEMENTS I would like to express my deepest gratitude to the following people, without whom this thesis never would have been possible.-To the BCCER for your financial support, which greatly helped in acquiring greenhouse supplies and fuel for driving up and down Honey Run.-To my advisor and friend Dr. Chris Ivey, for hours of engaging scientific discussion and entertaining all of m...
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Mimulus guttatus and M. nasutus are an evolutionary and ecological model sister species pair differentiated by ecology, mating system, and partial reproductive isolation. Despite extensive research on this system, the history of divergence and differentiation in this sister pair is unclear. We present and analyze a population genomic data set which shows that M. nasutus budded from a central Ca...
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The mating system of a population profoundly influences its evolution. Inbreeding alters the balance of evolutionary forces that determine the amount of genetic variation within a population. It redistributes that variation among individuals, altering heritabilities and genetic correlations. Inbreeding even changes the basic relationships between these genetic statistics and response to selecti...
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ژورنال
عنوان ژورنال: Heredity
سال: 1994
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.1994.40