part of continuous with expresses wg adult midgut adult hindgut adult gut adult midgut-hindgut hybrid zone 2018-05-30T10:43:44Z adult HZ adult midgut-hindgut boundary FBbt:00047207 HPZ anterior SCZ adult Wg ring midgut/hindgut imaginal ring Renamed from 'hindgut proliferation zone' as this region was shown not to contain stem cells and it is not considered part of the hindgut (Sawyer et al., 2017; Cohen et al., 2020) - https://orcid.org/0000-0002-1373-1705. Ring of small cells between the adult midgut and hindgut that express markers of both regions, as well as wingless (Sawyer et al., 2017). This boundary region does not contain stem cells, but regulates proliferation of nearby stem cells in the posteriormost part of the midgut and prevents cells from crossing between midgut and hindgut (Sawyer et al., 2017). fly_anatomy.ontology hindgut proliferation zone anterior spindle cell zone gut section