The FRT cassette present in the progenitor DroncKO.FRT.Dronc.WT.GFP.APEX2.FRT.SunTag(Unk),Tag:HA,mCherry allele has been excised, allowing the SunTag(Unk), Tag:HA and mCherry chimeric tag sequence to be expressed under the control of endogenous Dronc regulatory sequences.
DroncKO.-FRT.SunTag(Unk),Tag:HA,mCherry/DroncKO transheterozygous clones specifically generated in adult intestinal stem cells/enteroblasts (esg-positive), leads to sings of hyperplasia in the posterior midgut, with increased number and size of esg-positive progenitors (ISCs and EBs), and increased number of enterocytes.
DroncKO.-FRT.SunTag(Unk),Tag:HA,mCherry/DroncKO transheterozygous clones specifically generated in adult enteroblasts (Su(H)-positive), leads to enlarged enteroblasts.
Adult posterior midgut clones specifically generated in esg-positive progenitors (ISCs and EBs), and which both express NdsRNA.UAS.cUa under the control of Scer\GAL4esg.PU and are DroncKO.-FRT.SunTag(Unk),Tag:HA,mCherry/DroncKO transheterozygous show increased proportion of progenitors.