Section 7
Chapter 6,510

Studies on male recombination in a southern greek drosophila melanogaster population effect of temperature and suppression of male recombination in reciprocal crosses

Yannopoulos, G.; Pelecanos, M.

Genetical Research 29(3): 231-238


Accession: 006509271

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A 2nd chromosome of D. melanogaster (symbol 31.1) isolated from a natural population of northwestern Peloponnesus [Greece] (8 km from the city of Patras) induced recombination in heterozygous males, both in the 2nd and 3rd chromosomes. The phenomenon is temperature-sensitive with higher male recombination at 29.degree. C than at 25 or 15.degree. C. The temperature-sensitive period is during the larval stage where premeiotic germ cell division occurs. Suppression of male recombination in both the 2nd and 3rd chromosomes occurred when 31.1/CyL4 females were used in the matings; and the suppression of male recombination is caused by a cytoplasmic factor of the CyL4/Pm stock.

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