Genetic diversity of seeds prolamine in Carthamus tinctorius L.

The genetic diversity of prolamine among 53 safflower accessions from 32 countries were investigated by A-PAGE.A total of 15 prolamine bands were separated by electrophoresis.Each accession has 5 to 12 prolamine bands with a mean of 8.5,and there is one common band in all accessions.The results suggested that there was high genetic variability in prolamine of Carthamus tinctorius.It was one of the method to evaluate the genetic diversity of safflower.The mean genetic similarity(GS) coefficient was 0.752,ranging from 0.375 to 1.000.The cluster analysis showed that all accessions were clustered into 6 groups within the GS value of 0.752.The genetic relationships of most accessions based on prolamine were not associated with their geographical distribution.Seven accessions from China were separated into 3 groups,which inferred big genetic diversity of seed prolamine of Carthmus tinctorius accessions from China.