Eupatorium vaseyi – evidence for origin from E. sessilifolium/E. petaloideum

A bp polymorphism diagnostic for E. petaloideum vs. E. album is visible here in E. vaseyi – if E. album was a parent would expect to see A/T at this position. 

E. vaseyi – sample 2477

E. sessilifolium – sample 829

E. petaloideum – sample 2902

E. album – sample 2904

A/C polymorphism