Unrooted Neighbour Joining cladogram of the ncp GS gene of all the diploid and polyploid taxa analyzed in this study. The tree contains 109 allelic haplotypes generated from 359 sequences with 155 substitution sites. Topology of the MP tree on the same data set is broadly comparable with that of the NJ tree. Bootstrap supports (> 50%) from NJ/MP analyses are shown next to the branches. Label of each terminal branch is written as "taxa abbreviation (population code-number of individuals/number of clones)". For taxa abbreviations, see Table 1. Diploid taxa are in black, polyploid taxa in different colours.