41A;43A;h1-h25B
41A;43A;h1-h25B
41;43A;h1-h25
41A;43E
bk1 << mle << bk2
X/T(Y;2) male fertile
L. Sandler.
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)