Genetic differences among natural and laboratory-reared populations of the olive-fruit fly dacus oleae (diptera: tephritidae)
1980
TSAKAS, S.C. | ZOUROS, E.
Twelve wild populations of the olive-fruit fly Dacus oleae from around the Mediterranean basin and two laboratory populations were examined for their electrophoretic profiles at two esterase loci. The genetic distances among wild and laboratory populations were consistently greater than the distances among wild populations. There was a pattern in this genetic differentiation, in that the most common allele decreased in frequency during culture in the laboratory, thus causing an increase of heterozygosity in laboratory populations. The findings are discussed in the light of assessing the genetic quality of mass-laboratory (or factory) cultures of economically important insects.
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