Insertion of a transposable element into the same genomic region as the insertion in rt1.
adult abdomen (with rtP)
Deficient or thin muscles are sometimes seen in the abdominal segments of homozygous larvae.
The bodies of first instar larvae are rotated around the long axis, forcing the animals to move in a clockwise circle as they crawl. The larval cuticle presents a perfect segmental alignment of landmarks but the adult abdominal cuticle segments appear staggered relative to each other. Embryos show a variable but fully penetrant mutant phenotype. Common phenotypes include the lack of some muscles or the presence of very elongated thin ones. Most affected muscles are the lateral muscles 4, 5, 8, 23 and 24. Dorsal muscles are less commonly missing.
Abdomen twisted, as is rt. Viability erratic, usually about 50% wild type. Male fertile; female not tested. RK2.
rt2 is a non-enhancer of lethal | early third instar larval stage phenotype of Dg323
rt2 has muscle attachment site | third instar larval stage phenotype, enhanceable by tw1
rt2/rtP has embryonic/larval muscle system | third instar larval stage phenotype, enhanceable by tw1
rt2/rtP has muscle attachment site | third instar larval stage phenotype, enhanceable by tw1
rt2/rtP has sarcomere | third instar larval stage phenotype, enhanceable by tw1
rt2 has embryonic/larval muscle system | third instar larval stage phenotype, enhanceable by tw1
rt2/rtP has adult abdomen phenotype, non-enhanceable by Scer\GAL4Act5C.PI/twUAS.Tag:HA
rt2/rtP has adult abdomen phenotype, non-enhanceable by twRNAi.UAS/Scer\GAL4Act5C.PI
rt2 is a non-enhancer of embryonic/larval muscle system | early third instar larval stage phenotype of Dg323
rt2 is a non-enhancer of muscle attachment site | early third instar larval stage phenotype of Dg323
rt2 is a non-enhancer of sarcomere | early third instar larval stage phenotype of Dg323
Double homozygous Dg323;rt2 larvae show changes in sarcomere size and muscle attachment defects, identical to those seen Dg323 homozygous animals.
A greater number of muscle attachment defects are observed in tw1; rt2 mutant third instar larvae compared to rt2 mutants. Sarcomeres are larger than in wildtype animals.
A greater number of muscle attachment defects are observed in tw1; rt2/rtP mutant third instar larvae compared to rt2/rtP mutants. Sarcomeres are larger than in wildtype animals.
Expression of the twScer\UAS.T:Ivir\HA1 transgene, under the control of Scer\GAL4Act5C.PI, does not enhance the abdominal phenotype of rtP/rt2 mutants. This phenotype is also not affected by tw RNAi, achieved by expression of twdsRNA.Scer\UAS under the control of Scer\GAL4Act5C.PI.
Bridges, 14th Dec. 1925.