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Genetics. 1988 May;119(1):135-40. doi: 10.1093/genetics/119.1.135.

Restriction map variation at the adh locus of Drosophila melanogaster in inverted and noninverted chromosomes.

Genetics

M Aguade

Affiliations

  1. Department de Genetica, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain.

PMID: 17246423 PMCID: PMC1203332 DOI: 10.1093/genetics/119.1.135

Abstract

Restriction map variation among 39 Standard and 40 In(2L)t chromosomes extracted from a Spanish natural population of Drosophila melanogaster was investigated for a 2.7-kb region encompassing the Adh locus with ten four-cutter restriction enzymes. A total of 20 polymorphisms were detected, representing 15 restriction site polymorphisms, 4 length polymorphisms and the allozyme polymorphism. Variation at the DNA level was compared among St-Adh(F), St-Adh(S) and t-Adh(S) chromosomes. t-Adh(S) chromosomes show a higher level of variation than St-Adh(F) chromosomes. This suggests that In(2L)t arose before the fast/slow allozyme divergence in the evolutionary history of D. melanogaster.

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