4-only nondisjunctional AD1 Progeny

Normal | 4-only | X-only | X and 4 Doubles

The text in parentheses below shows the chromosome content of the oocyte, followed by the phenotype of the progeny.  Remember, only genes for which the fly is mutant are listed, so all other markers are wildtype.

4-linked markers:

poliert (pol): The eye surface texture is glazed over and shiny (wildtype: compound eye has separate facets)

cubitus interruptus (ci): The cubitus vein on the wing has gaps or is missing (wildtype: vein is continuous)

eyeless, Russian allele (eyR): The eye is round instead of oval, and smaller.  Variable expression, eye can go from just smaller than normal to completely absent.

Nullo-4 Male (X Ø) y w; ci eyR     or     y w B; ci eyR

This male is y w / Ø; C(4)/Ø and is showing a very weak eyeless phenotype. Note that the eye is slightly smaller and more rounded (less oval) than the wildtype eye is.

One wing of the same male, showing a very weak cubitus interruptus phenotype, with a small extra loop of vein near the base, and only a couple spots of vein thinning without completely interrupting the vein (arrows).

Nullo-4 Female (X Ø) B; ci eyR

Closeup of a strong eyeless phenotype in a C(4)/Ø female.  Note that no ommatidia can be seen.

Slightly less strong eyeless phenotype in another C(4)/Ø female; note that two rows of ommatidia remain along the bottom, and the presence of the clear trench separating the eye from the surrounding cuticle along the bottom edge.

One wing from the same female, showing a very strong ci phenotype.

Diplo-4 Male (X 44) y w; pol     or     y w B; pol

The poliert mutant gives the eye surface shiny, sparkly appearance in this y w / Ø ; pol/pol male.  Note that the ommatidia (still present in the ci male above) are gone.  This male did retain a slight trench that separates the eye surface from the surrounding cuticle.

Diplo-4 Female (X 44) B; pol

The pol mutant causes the compound eye facets to lose their distinction.  It can be bumpy or smooth, and can vary across the eye.  The surface is glossy, and there is no clear trench between the surrounding cuticle and the eye region.