Fungal endophytic communities in needles of field-grown Pinus flexilis previously inferred to carry major gene resistance (R) to white pine blister rust (WPBR) or to lack it (S) were surveyed to identify unique microbes that may be recruited by WPBR-resistant genotypes. Resistant and susceptible trees were sampled in each of 11 P. flexilis populations for a total of 50 trees sampled. https://www.roneverhart.com/Stardust-XLF/