| out of anatolia: longitudinal gradients in genetic diversity support an eastern origin for a circum-mediterranean oak gallwasp andricus quercustozae. | many studies have addressed the latitudinal gradients in intraspecific genetic diversity of european taxa generated during postglacial range expansion from southern refugia. although asia minor is known to be a centre of diversity for many taxa, relatively few studies have considered its potential role as a pleistocene refugium or a potential source for more ancient westward range expansion into europe. here we address these issues for an oak gallwasp, andricus quercustozae (hymenoptera: cynipid ... | 2003 | 12859636 |