Stricto
The study site was located in the Brazilian Institute of Geography and Statistics (IBGE) Ecological Reserve, a protected area in the Federal District of Brazil. Soil samples were obtained from four different vegetation physiognomies: cerrado denso (dense tree layer ranging from 5 to 8 m in height) (15° 56' 43.1' S, 47° 51' 26.0' W), cerrado sensu stricto (continuous grass layer and a woody layer of trees and shrubs varying in cover between 10 and 60 %) (15° 57' 02.4' S, 47° 5' 32.1' W), campo sujo (open savanna with widely scattered small trees and shrubs) (15° 56' 54.6' S, 47° 52' 11.7' W), and gallery forest (forest formation along a watercourse) (15° 57' 06.0' S, 47° 53' 18.7' W). Fungal 18S rRNA genes were amplified with primers EF4F/Fung5R. The amplicons were purified using the QIAquick PCR Purification Kit (QIAGEN, Chatsworth, CA) and sequenced using the GS FLX+ Titanium system