Internal deletion of the P-element.
At 18oC, less than 1% of homozygous embryos have a strong dorsal-open phenotype (large holes in the dorsal cuticle), 31% have an intermediate phenotype (the dorsal cuticle is noticeably reduced, and there is increased curvature in the abdominal segments, resulting in a "tail-up" phenotype) and 69% have a weak phenotype. The prevalence of the strong dorsal-open phenotype is increased at 29oC. put10/put51 adults are viable, and sometimes show defects in wing venation.
Heterozygotes with put10460 are lethal at high temperatures, at low temperatures individuals survive and exhibit ectopic wing venation in the region of the posterior cross vein. Escaper females produce ventralised embryos.
Selected as: ry- excision allele.
Three classes of put allele can be identified with respect to decreasing severity of wing venation phenotypes with put10 : Class I (put10460 = put62) > Class II (put51 = put88 = put135) > Class III (put10 = put24 = put97).