Male crossing over and genetic sexing systems in the Australian sheep blowfly Lucilia cuprina.
Field-female killing (FK) systems based on deleterious mutations and Y-autosome translocations are being evaluated for genetic control of the Australian sheep blowfly, Lucilia cuprina. Experience during field trials has shown that mass-reared colonies of FK strains are subject to genetic deterioration, caused mainly by genetic recombination in males. A previous study found higher male recombination frequencies in two Y-linked translocation strains than in chromosomally normal males. However, the results of the present study indicate that breakage of the Y chromosome is neither sufficient nor necessary for increased levels of male recombination. The frequency of male recombination appears to be unrelated to the presence of specific chromosome rearrangements.
Foster
G G
GG
CSIRO Division of Entomology, Canberra, Australia.
Weller
G L
GL
Clarke
G M
GM
D000818:Animals; D001315:Australia; D003433:Crosses, Genetic; D003434:Crossing Over, Genetic; D004175:Diptera / Q000235:genetics*; D005260:Female; D005787:Gene Frequency; D008297:Male; D009154:Mutation; D011995:Recombination, Genetic; D012756:Sheep; D014178:Translocation, Genetic; D014998:Y Chromosome