Fig. 5

RNA in situ hybridization detected by CsAG1 antisense probe in standard (a) and stamenoid-tepal (b, c) Cymbidium sinense; dark regions marked by black arrows indicate strong signals; (d) is a negative control using the sense probe of CsAG1 in a standard flower; OT, outer tepal; IT, inner tepal; L, lip; St, stamen; mC, median carpel; lC, lateral carpel; bar = 100 μm