Allozyme genetics in permanent translocation heterozygotes of the Oenothera biennis complex.

Biochemical Genetics
M LevyD A Levin

Abstract

Allozyme inheritance and transmission genetics of 11 enzyme systems were determined in the permanent translocation heterozygotes Oenothera biennis, Oe. strigosa, and Oe. parviflora. Electrophoretic variation was examined first among 164 strains of structural heterozygotes. Allelic configurations were then judged from inheritance patterns in reciprocal F1 hybrids between each of 22 ring-forming strains and tester strains of the related bivalent-formers, Oe. hookeri and Oe. grandiflora. Allozymes are inherited as codominant markers, and, as dictated by the genetic system, within a strain individual allelic variants are generally transmitted through only one germ line. Of the 20 loci resolved, only eight are polymorphic in any species, and, within species, generally only two alleles are present at each polymorphic locus. Despite the relatively meager allelic array, each of the 22 strains whose chromosome complexes were characterized is genotypically unique. Generally, within taxa, alpha (egg) and beta (sperm) complexes differ in allele frequency at several polymorphic loci. Such variability is correlated with differences in the phylogenetic origins of complexes and not with differences in segmental arrangement within a group of re...Continue Reading

Citations

Jan 1, 1982·Evolution; International Journal of Organic Evolution·Norman C Ellstrand, Donald A Levin
Sep 1, 1977·Evolution; International Journal of Organic Evolution·Morris Levy, P Louis Winternheimer
Nov 1, 1983·Evolution; International Journal of Organic Evolution·Richard P Wain
Sep 1, 1981·Evolution; International Journal of Organic Evolution·L D Gottlieb, N F Weeden
Jun 1, 1979·Evolution; International Journal of Organic Evolution·Donald A LevinNorman C Ellstrand
Sep 1, 1980·Evolution; International Journal of Organic Evolution·Norman C Ellstrand, Donald A Levin
Dec 1, 1979·Evolution; International Journal of Organic Evolution·L D Gottlieb, N F Weeden

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