Polytene chromosomes normal.
Point mutation.
Mutations in the m9/m10 coding region.
macrochaeta & scutum
microchaeta & scutum
sense organ & wing
Heterozygotes have a mild bristle loss phenotype.
Clones fail to differentiate epidermis. Microchaetes are densely packed and adjacent to one another. Macrochaetes are present as dense tufts of abnormal bristles.
In clones in the wing, the phenotype depends on where the clone lies. In the anterior compartment all clones abutting the wing margin cause local overgrowth and pattern duplications. Those abutting the wing margin and restricted to dorsal or ventral surfaces cause overgrowth of both dorsal and ventral cells. Clones at the wing margin cause loss of sensory organs and mild scalloping of the margin.
More than expected 25% of embryos from groE73/+ mothers die, revealing the dominant maternal effect.
Weak neurogenic phenotype.
H21, groE73/gro[+] has visible phenotype, non-enhanceable by CtBP[+]/CtBP87De-10
H21, groE73/gro[+] has visible phenotype, non-suppressible by CtBP[+]/CtBP87De-10
H21, groE73/gro[+] has macrochaeta phenotype, non-enhanceable by CtBP[+]/CtBP87De-10
H21, groE73/gro[+] has macrochaeta phenotype, non-suppressible by CtBP[+]/CtBP87De-10
groE73/gro[+] is an enhancer of macrochaeta phenotype of Su(H)RC-9Xm
groE73/gro[+] is an enhancer of macrochaeta phenotype of H21
groE73/gro[+] is an enhancer of macrochaeta phenotype of HE31
groE73/gro[+] is an enhancer of ocellar bristle phenotype of HE31
groE73/gro[+] is an enhancer of embryonic/first instar larval cuticle phenotype of eve1
Can be rescued by a grounspecified transgene.
Preiss.
See Preiss et al., 1988, EMBO J. 7:3917--3927 .