Title: Population genetics and biochemical systematics of marsh flies in the Sepedon fuscipennis group (diptera: sciomyzidae)
Abstract: An isozyme comparison of 23 loci among two subspecies of the Sepedon fuscipennis Loew group and a population ofS. fuscipennis “intermediate specimens” indicated that six loci were monomorphic in all three populations. The F-statistics showed moderate differentiation among the populations (FST-0.127) with high values for AK and 6-PGD only. Neís index (1978) of genetic identity for the three populations ranged from 0.923 to 0.990, indicating a high degree of similarity among all populations. Mean heterozygosity ranged from 0.135 to 0.201 with an average of 0.163 across the three populations. Our genetic data, as well as previously described morphological data, suggest that this is a single species showing geographic cline in several character states, rather than well-defined subspecies.
Publication Year: 1990
Publication Date: 1990-10-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 4
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