Breakpoint allele.
dpp expression in shv-class of dpp alleles has been examined: those broken distal to molecular coordinate 87 eliminate all aspects of internal dpp expression while leaving ectodermal expression unaffected. Late embryos fail to evaginate gastric caeca and fail to form secondary midgut constrictions, and the primary midgut constriction is posteriorly displaced.
Belongs to the shv-lnc class alleles. Fails to fully complement disk region mutants.
Allele class: shv-lnc