lethal (with Cap-GEP2346)
anaphase & condensed nuclear chromosome
anaphase & condensed nuclear chromosome (with Df(2R)vg56)
Defects in sister chromatid separation are seen at anaphase during cycle 15 of embryogenesis in mutant embryos; bridging of one or two chromosome arms is seen. At anaphase, Cap-GK1/Df(2R)vg56 mutant postblastoderm embryos show failure of sister chromatid separation and bridging of chromosomes is seen.
Chromatin condenses nonuniformly in prophase and prometaphase in postblastoderm Cap-GK1 barrL305 double mutant embryos. By metaphase, chromosome condensation has reached wild-type levels. Chromatid separation defects are seen in anaphase when only the fourth chromosome is clearly seen to separate, and lagging chromosomes are seen in telophase. The double mutant postblastoderm embryos have an increased number of prometaphase figures compared to wild-type embryos, suggesting that the length of prometaphase may be increased in the mutant embryos.