43E;44B;43B;54A
2Lt - 43B | 54A - 43E | 44B - 43B | 54A - 2Rt
43E;44B;43B;54A
bk1 << cn << bk2
Recovered as apparent cn double recombinant from test crosses of dysgenic-type males that were heterozygous for a maternally derived dp b cn bw second chromosome and paternally derived autosomes extracted from natural populations and capable of promoting male recombination.
All limits from polytene analysis (FBrf0037137)