Inbreeding and the genetic variance in floral traits of Mimulus guttatus
نویسندگان
چکیده
منابع مشابه
Deleterious mutations and the genetic variance of male fitness components in Mimulus guttatus.
Deleterious mutations are relevant to a broad range of questions in genetics and evolutionary biology. I present an application of the "biometric method" for estimating mutational parameters for male fitness characters of the yellow monkeyflower, Mimulus guttatus. The biometric method rests on two critical assumptions. The first is that experimental inbreeding changes genotype frequencies witho...
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Inbreeding in plants typically reduces individual fitness but may also alter ecological interactions. This study examined the effect of inbreeding in the mixed-mating annual Mimulus guttatus on visitation by pollinators (Bombus impatiens) in greenhouse experiments. Previous studies of M. guttatus have shown that inbreeding reduced corolla size, flower number, and pollen quantity and quality. Us...
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Inbreeding in plants causes various declines in fitness estimates across many species and may also affect adaptive phenotypic plasticity, as observed in tolerance to herbivory. Although there are a growing number of studies looking at this effect, there are still not enough to make general conclusions about the relationship between homozygosity and tolerance or resistance. In this work, we exam...
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The influence of genetic interactions (epistasis) on the genetic variance of quantitative traits is a major unresolved problem relevant to medical, agricultural, and evolutionary genetics. The additive genetic component is typically a high proportion of the total genetic variance in quantitative traits, despite that underlying genes must interact to determine phenotype. This study estimates dir...
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ژورنال
عنوان ژورنال: Heredity
سال: 2003
ISSN: 0018-067X,1365-2540
DOI: 10.1038/sj.hdy.6800181