43D;44C;47C;54B
2Lt - 43D | 44C - 47C | 54B - 47C | 54B - 2Rt
43D;44C;47C;54B
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)