ENZYME VARIABILITY IN THE DROSOPHILA WILLISTONI GROUP. III. AMOUNTS OF VARIABILITY IN THE SUPERSPECIES, D. PAULISTORUM
Open Access
- 1 January 1972
- journal article
- research article
- Published by Oxford University Press (OUP) in Genetics
- Vol. 70 (1) , 87-112
- https://doi.org/10.1093/genetics/70.1.87
Abstract
The semispecies composing the superspecies, Drosophila paulistorum, have been analyzed for genetic variation at 17 enzyme loci. On the average a population of D. paulistorum is polymorphic for 55–67% of its loci and an average individual is heterozygous at 21% of its loci. The pattern of genetic variability found supports the hypothesis that allozyme variation is maintained in natural populations by some form of balancing selection. Evidence is presented which supports the hypothesis that glucose-metabolizing enzymes are less genetically variable than non-glucose-metabolizing enzymes. The known genetic relationships between the semispecies of D. paulistorum are discussed in the light of the frequencies of alleles at allozyme loci.Keywords
This publication has 9 references indexed in Scilit:
- Polymorphisms in Continental and Island Populations of Drosophila willistoniProceedings of the National Academy of Sciences, 1971
- A profile of Drosophila species' enzymes assayed by electrophoresis. I. Number of alleles, heterozygosities, and linkage disequilibrium in glucose-metabolizing systems and some other enzymesBiochemical Genetics, 1970
- A MOLECULAR APPROACH TO THE STUDY OF GENIC HETEROZYGOSITY IN NATURAL POPULATIONS IV. PATTERNS OF GENIC VARIATION IN CENTRAL, MARGINAL AND ISOLATED POPULATIONS OF DROSOPHILA PSEUDOOBSCURAGenetics, 1969
- The degree of polymorphisms in enzymes involved in energy production compared to that in nonspecific enzymes in two Drosophila ananassae populations.Proceedings of the National Academy of Sciences, 1968
- EXPERIMENTS ON THE INCIPIENT SPECIES OF THE DROSOPHILA PAULISTORUM COMPLEXGenetics, 1967
- A MOLECULAR APPROACH TO THE STUDY OF GENIC HETEROZYGOSITY IN NATURAL POPULATIONS. II. AMOUNT OF VARIATION AND DEGREE OF HETEROZYGOSITY IN NATURAL POPULATIONS OF DROSOPHILA PSEUDOOBSCURAGenetics, 1966
- DROSOPHILA PAULISTORUM, A CLUSTER OF SPECIES IN STATU NASCENDIProceedings of the National Academy of Sciences, 1959
- Genetic Conditions Which Promote or Retard the Formation of SpeciesCold Spring Harbor Symposia on Quantitative Biology, 1959
- Evolution of Genes and Genes in EvolutionCold Spring Harbor Symposia on Quantitative Biology, 1959