Temperature-dependent kinetic variation among phosphoglucose isomerase allozymes from the wing-polymorphic water strider, Limnoporus canaliculatus.

Phosphoglucose Isomerase Variability in Sympatric Populations of Mediterranean Species

Genetic variability at the phosphoglucose isomerase (PGI) locus was compared in Mediterranean sympatric populations of Patella aspera, P. coerulea and P. lusitan~ca. P. aspera and P. coerulea show PG1 patterns much alike, while P. lusitanica exhibits a more anodal general zone of mobility of its PG1 allozymes. The differentiation of P. lusitanica pattern may be tentatively interpreted as the re...

Genetic and Environmental Determinants of Wing Polymorphism in the Waterstrider Limnoporus Canaliculatus.

Structural and functional differentiation of two clinally distributed glucosephosphate isomerase allelic isozymes from the teleost Fundulus heteroclitus.

The teleost Fundulus heteroclitus (L.) possesses two loci, Gpi-A and Gpi-B, for the glycolytic enzyme, glucose-phosphate isomerase (GPI; D-glucose-6-phosphate ketol-isomerase; E.C. 5.3.1.9). The Gpi-B locus is polymorphic in Fundulus, with two common alleles, Gpi-Bb and Gpi-Bc, distributed in a clinal manner in populations along the east coast of North America. Since this clinal distribution is...

Adaptation at Specific Loci. III. Field Behavior and Survivorship Differences among Colias Pgi Genotypes Are Predictable from IN VITRO Biochemistry.

Previous work on the phosphoglucose isomerase (PGI) polymorphism of Colias butterflies led to predictions concerning aspects of differential survivorship and fecundity among the polymorphic genotypes in the wild. Explicit assumptions underlying these predictions were that functional differences among genotypes at the in vitro biochemical level reflected roughly corresponding differences in vivo...

Adaptation at Specific Loci. VI. Divergence vs. Parallelism of Polymorphic Allozymes in Molecular Function and Fitness-Component Effects Among CO&H Species (Lepidoptera, Pieridae)

In lowland Cobs butterflies, genotypes of the enzyme phosphoglucose isomerase (PGI) show major differences in molecular function, from which genotypic differences in organismal performance and fitness components in the wild are accurately predictable. The alpine species Colias meadii seems to share electromorph alleles with lowland congeners at PGI and phosphoglucomutase (PGM). However, high-re...