41D2-41E1;42B1-42B3
41D2-41E1;42B1-42B3
bk1 << EcR << l(2)42Bd << bk2
Lethal in combination with Ab(2;?)2.5-58S12.
The Df(2R)nap1 chromosome does not act as a dominant suppressor of telomeric silencing (assayed using the effect of the chromosome on the eye colour phenotype of flies carrying "P{wvar}KR3-2", a stable "brown-red" variant of the P{3'WP-2,wvar}2Lt insertion).
Heterozygosity for Df(2R)nap1 results in 4.0% X chromosome nondisjunction and 1.6% fourth chromosome nondisjunction in In(1)FM7/X ; svspa-pol females.
Intermediate second site non-complementing phenotype with zipEbr and zipmhc-c6.1 : malformed phenotype penetrance 25-75%.
All limits from polytene analysis (FBrf0075275)