TY - JOUR T1 - Species status of hybridizing oaks JF - Nature (London) Y1 - 2000 A1 - Muir, G. A1 - Fleming, C.C. A1 - Schl SP - 1016 AB - 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. VL - 405 ER -