Population genetics of the burrowing mayflyDolania americana:geographic variation and the presence of a cryptic species
- 1 January 1991
- journal article
- research article
- Published by Taylor & Francis in Aquatic Insects
- Vol. 13 (1), 17-27
- https://doi.org/10.1080/01650429109361419
Abstract
The genetic structure of Dolania populations in South Carolina, Alabama, and Florida was examined using starch gel electrophoresis. All study populations except Alabama consisted entirely of D. americana Edmunds and Traver. Electrophoresis revealed that the Alabama site contained both D. americana and an undescribed species (D. sp. nov.), with the latter taxon predominating. Individuals of the two taxa had nearly fixed allelic differences at two loci (Est 4 and Gda). The extent of genetic differentiation between populations of the two taxa in the same river or between adjacent river systems was significantly greater than between D. americana populations separated by large geographic distances. Populations of both species were characterized by relatively normal levels of polymorphic loci (average = 23%) but unusually low levels of heterozygosity (average = 0.03). Genetic variation between the Florida and South Carolina populations of D. americana was statistically significant. There was also some indication of slight genetic differentiation among populations of D. americana within the Blackwater River in Florida. No significant genetic variation was observed between cohorts of D. americana at a given site.Keywords
This publication has 17 references indexed in Scilit:
- Seasonal synchronization of emergence in Dolania americana (Ephemeroptera: Behningiidae)Canadian Journal of Zoology, 1987
- Morphological and enzyme electrophoretic studies on the relationships of the European Epeorus species (Ephemeroptera, Heptageniidae)Systematic Entomology, 1986
- Large Mammals are Genetically Less Variable?Evolution, 1985
- Difficulties With the Interpretation of Patterns of Genetic Variation in the Eusocial HymenopteraEvolution, 1985
- Gene Diversity in HymenopteraEvolution, 1985
- Eusociality and Genetic Variability: A Re-EvaluationEvolution, 1985
- Intraspecific Genetic Variation and Haplodiploidy, Eusociality, and Polygyny in the HymenopteraEvolution, 1983
- Population Synchrony in Mayflies: A Predator Satiation HypothesisEvolution, 1982
- Gene Flow in House Mice: Introduction of a New Allele Into Free-Living PopulationsEvolution, 1981
- Adult life and emergence of Dolania americana in Northwestern Florida (Ephemeroptera: Behningiidae)International Review of Hydrobiology, 1977