F. Fernández-Mendoza, S. Domaschke, M. A. García, P. Jordan, M. P. Martín and C. Printzen 2011: Population structure of mycobionts and photobionts of the widespread lichen Cetraria aculeata. - Molecular Ecology20(6): 1208-1232. [RLL List # 222 / Rec.# 32642] Abstract: [Genetic structure of mycobionts and photobionts were compared based on three loci for each symbiont, and found that "genetic variance of the photobiont is best explained by differentiation between temperate and polar regions and that of the mycobiont by an interaction of climatic and geographical factors."]