Statistical genetics of an annual plant, Impatiens capensis. I. Genetic basis of quantitative variation.
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چکیده
منابع مشابه
Statistical genetics of an annual plant, Impatiens capensis. I. Genetic basis of quantitative variation.
Analysis of quantitative genetics in natural populations has been hindered by computational and methodological problems in statistical analysis. We developed and validated a jackknife procedure to test for existence of broad sense heritabilities and dominance or maternal effects influencing quantitative characters in Impatiens capensis. Early life cycle characters showed evidence of dominance a...
متن کاملStatistical genetics of an annual plant, Impatiens capensis. II. Natural selection.
Measurement of natural selection on correlated characters provides valuable information on fitness surfaces, patterns of directional, stabilizing, or disruptive selection, mechanisms of fitness variation operating in nature, and possible spatial variation in selective pressures. We examined effects of seed weight, germination date, plant size, early growth, and late growth on individual fitness...
متن کاملKin Selection in the Annual Plant Impatiens Capensis
-Kin selection occurs when phenotypic variation in a character or set of characters is heritable, spatially structured, and has differential fitness effects on neighboring individuals. Spatially structured, heritable variation has been found for many characters of the annual plant Impatiens capensis (the first wo criteria). By manipulating plant growth by apical removal, I show that Impatiens f...
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متن کاملChapter 18: Quantitative Genetics I – Important Concepts Continuous Variation
In the chapter on Mendel and Morgan, we saw how the transmission of genes from one generation to another follows a precise mathematical formula. The traits discussed in that chapter, however, were discrete traits—peas are either yellow or green, someone either has a disorder or does not have a disorder. But many behavioral traits are not like these clear-cut, have-it-or-don’t-have-it phenotypes...
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ژورنال
عنوان ژورنال: Genetics
سال: 1990
ISSN: 1943-2631
DOI: 10.1093/genetics/124.2.407