The evolutionary dynamics of complex polymorphisms.

摘要: The theory of balanced polymorphism which has been elaborated by population geneticists, notably Sewall Wright and R. A. Fisher, in the main concerned with effects single loci. As generally goes apace experiment, this accent on locus polymorphisms due to plethora observational evidence relating simple cases. It is sufficient note vast effort made Dobzhansky his co-workers their elucidation inversion third chromosome Drosophila pseudoobscura. In recent years, however, a few cases have come light involving more than one Mendelian unit. Among these are inversions different chromosomes found D. robustca studied Levitan (1955 1958), shell color Cepaea nemoralis reported Lamotte (1951) Cain Sheppard (1952), complex mimicry pattern certain butterflies (Sheppard, 1959) two grasshopper Moraba scurra analyzed White (1957) Lewontin (1960). study natural selection must take into account only inter-allelic such as additivity dominance. multi-locus polymorphisms,