1. Fewer S‐alleles are maintained in plant populations with sporophytic as opposed to gametophytic self‐incompatibility. Issue 1 (13th August 2012) Authors: Busch, Jeremiah W.; Witthuhn, Tyler; Joseph, Michael Journal: Plant species biology Issue: Volume 29:Issue 1(2014:Jan.) Page Start: 34 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗