Strong segmentation phenotype. The Malpighian tubules are normal in homozygous embryos, occasionally there are buds at the ureter. Kr29/Kr28 or Kr28/Kr1 transheterozygotes have a similar Malpighian tubule phenotype to Kr28 homozygotes.
strong allele Segments T1-3 and A1-5 deleted; A6 and sometimes A7 and 8 duplicated with reverse polarity.
Strong allele.