National Natural Science Foundation of China(grant no.30670146);National Infrastructure of Natural Resources for Scienceand Technology(grant no.2005DKA21403)
supported by the National Natural Science Foundation of China(Grant No.30670146);the National Infrastructure of Natural Resources for Science and Technology(Grant No.2005DKA21403)
In the present study, the karyotypes of 34 populations belonging to 11 species and one variety of Heracleum from the Hengduan Mountains in China were examined. Chromosome numbers and the karyotypes of three species (...