Evolution of the 87A and 87C heat-shock loci in Drosophila

Nature. 1981 Apr 23;290(5808):677-82. doi: 10.1038/290677a0.


Several species related to Drosophila melanogaster have two loci containing sequences which code for the major heat-shock protein of molecular weight 70,000 (hsp70). These sequences are arranged as two pairs of inverted repeats. The structure of the 87C locus in D. melanogaster seems to have arisen through DNA insertion. Hsp70-coding sequences at the two loci are not evolving independently. Gene conversion between hsp70 genes has apparently occurred both within and between loci.

MeSH terms

  • Animals
  • Base Sequence
  • Biological Evolution*
  • DNA Restriction Enzymes
  • Drosophila / genetics*
  • Gene Conversion
  • Heat-Shock Proteins
  • Hot Temperature*
  • Proteins / genetics*
  • Species Specificity


  • Heat-Shock Proteins
  • Proteins
  • DNA Restriction Enzymes