Severe roughened eye phenotype. Sterile in males. The majority of onion stage cysts appear normal with 64 cells, with nuclei with decondensed chromatin and nebenkern of similar size. However these cells go on to attempt an extra division after meiosis II, sometimes assembling a monopolar spindle, resulting in cells with variable number and size of nuclei. Some cells attempt an extra cytokinesis. The extra division is not preceded by an extra S phase, nor by duplication of the centrioles. No normal germ cells were found in later stage rux cysts. Semisterile in females.
rux9 has phenotype, non-enhanceable by Cdk1unspecified
rux9 has phenotype, non-suppressible by Cdk1unspecified
Mobilization of the P-element can generate revertants that have lost the male sterility.