Females homozygous for tuh1h produce adult offspring with significantly more bristles than homozygous tuh1g or tuh1g/tuh1h females. Increased bristle number occurs in the head, thorax and anterior and posterior abdomen. tuh1h is completely recessive to tuh1g. The phenotype is temperature sensitive, with the difference in bristle number between the offspring of tuh1h and tuh1g homozygous females being greatest at 18oC. tuh1h/Df(1)JC4 and tuh1h/Df(1)GA37 females produce offspring with high bristle number. Flies homozygous for tuh1h develop significantly faster than flies heterozygous or homozygous for tuh1g at 18oC, although there is no significant difference in developmental time at 25oC.
Abd-Biab9-tuh-3 females deficient for tuh1h produce offspring with head defects and normal genitalia, just like homozygotes for tuh1h.
Maternal effect gene.
tuh1h/tuh1h Abd-Biab7-SGA/Abd-Biab9-tuh-3 flies have a similar phenotype to Abd-Biab7-SGA heterozygotes.
phenotype with Abd-Biab9-tuh-3 : homeotic leg, tergite, or genital tissue in eye-antenna region (penetrance up to 90%). Semidominant (Kuhn and Packert, 1988a and 1988b).
Abd-Biab9-tuh-3, tuh1h has visible | dominant phenotype
Abd-Biab9-tuh-3, tuh1h has neoplasia | dominant phenotype
Abd-Biab9-tuh-3, tuh1h has visible | semidominant phenotype
Abd-Biab9-tuh-3, tuh1h has visible | heat sensitive phenotype
Abd-Biab9-tuh-3, tuh1h has embryonic head phenotype
Abd-Biab9-tuh-3, tuh1h has genitalia | ectopic phenotype
Abd-Biab9-tuh-3, tuh1h has head phenotype
Abd-Biab9-tuh-3, tuh1h has abdomen | ectopic phenotype
Abd-Biab9-tuh-3, tuh1h has eye phenotype
Abd-Biab9-tuh-3, tuh1h has adult head phenotype
Maternal effect gene. Abd-Biab9-tuh-3 acts as a semidominant allele in combination with tuh1h, causing growths of abdominal and/or genital tissue in the head.
Abd-Biab9-tuh-3 flies also homozygous for tuh1h show eye outgrowths and have a transformation of head structures to genitalia. This phenotype is temperature-sensitive, having increased penetrance at 25 rather than 18oC.