56F;57A;h1-h25B
56F;57A;h1-h25B
56F;57A
X/T(Y;2) male sterile
J.C. Hall.
Induced in mature sperm.
Elevated frequencies of prophase associations between second and Y chromosomes occur in proportion to the region of homology between the second and Y chromosomes. Transposition heterozygotes exhibit preferential Y-2 segregation, also in proportion to the region of homology between the second and Y chromosomes. Thus males have a general homology pairing system despite their lack of recombination.
All limits from polytene analysis (FBrf0022239)