POPP, MAGNUS. Systematic Botany, Evolutionary Biology Centre, Uppsala University, Norbyvagen 18D, SE-75236 Uppsala, Sweden. - Polyploid evolution in Silene.
Although polyploidy is a fairly rare phenomenon in Silene
(Caryophyllaceae), most of the North American and some Central Asian
taxa are found to be polyploid. The origin(s) and evolution of some of
these polyploid Silene are investigated using rDNA (ITS1, 5.8S, ITS2),
intron sequences from the second largest subunits (RPA2, RPB2, and
RPD2) in the RNA polymerase gene family, and cpDNA (rps16). The
utility of the different data sets are also discussed.
Key words: Caryophyllaceae, polyploidy, Silene