meiosis & nuclear chromosome
fsl2/fsl2 homozygotes and fsl2/Df(3L)BK10 hemizygotes do not substantially differ in terms of severity of phenotype compared to fsl1/fsl1 homozygotes and fsl1/Df(3L)BK10 hemizygotes, displaying a common defect in chromosome segregation.
Isolated in a cytological screen of a collection of male sterile mutants.