@article {132, title = {Species status of hybridizing oaks}, journal = {Nature (London)}, volume = {405}, year = {2000}, month = {2000}, pages = {1016}, abstract = {The two widespread species of oak tree in Europe, Quercus robur L. and Q. petraea (Matt.) Liebl., hybridize extensively, calling their taxonomic status into question. Here we use microsatellite DNA, a highly informative genetic marker, to show that Q. robur and Q. petraea are discrete taxonomic units despite this intensive hybridization. Furthermore, individual oaks can be assigned to separate species.}, author = {Muir, G. and Fleming, C.C. and Schl} }