Abstract
Genetic factors controlling recombination frequencies in the second and the third chromosomes of males with constructed genomes of autosomes and Y-chromosome from several strains of D. ananassae were investigated. Recombination frequencies were highly variable depending on the genomes of the male. The highest recombination value in the interval of ml-ru on the third chromosome was 42.8%, which was close to the value in the female, 45.4%. The presence of major genetic factors in the autosomes was diagnosed, and some factors in the Y-chromosome were concurrently revealed, especially in that derived from the Tonga “dark” form. It is most worthy of note that highest recombination in the second chromosome was observed in the male constructed of Tonga autosomes, Y from cosmopolitan form, and X and cytoplasm from the marker strain.
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