Abstract
Thehsp70, hsp83, hsrω, and thesmall heat shock protein genes were mapped on the polytene chromosomes of six species, representative of the geographical distribution of theDrosophila montium subgroup of themelanogaster species group. In addition, based on hybridization conditions, the putative locus of thehsp68 gene is given. In contrast to the situation in themelanogaster subgroup species, thehsp70 locus is single in themontium species. Thehsp83, hsrω and thesmall hsp loci are also single in themontium genomes studied here, a common feature of allDrosophila species. Among thehsp genes studied, thesmall hsp genes and thehsrω-homologous sequences exhibit a higher degree of divergence between themelanogaster and themontium subgroups. Our results support the idea that themontium subgroup species has a genome organization closer to that of the common ancestor compared with themelanogaster subgroup species.
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Edited by: E. Schmidt
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Drosopoulou, E., Konstantopoulou, I. & Scouras, Z.G. The heat shock genes in theDrosophila montium subgroup: Chromosomal localization and evolutionary implications. Chromosoma 105, 104–110 (1996). https://doi.org/10.1007/BF02509520
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DOI: https://doi.org/10.1007/BF02509520