. ▁This ▁has ▁led ▁them ▁to ▁expand ▁the ▁collection , ▁with ▁additional ▁materials ▁including ▁ ▁stra ins ▁from ▁gen ome ▁programs ▁and ▁mut ant ▁collections ▁for ▁organ isms ▁such ▁as ▁Ne uro sp ora ▁cr assa , ▁As per g ill us ▁n id ul ans , ▁C rypt oc oc cus ▁ne o form ans , ▁and ▁Cand ida ▁alb icans . ▁ ▁As ▁a ▁gen etic ▁repository , ▁the ▁F G SC ▁has ▁always ▁endeav ored ▁to ▁represent ▁the ▁divers ity ▁of ▁gen etic ▁materials ▁available . ▁To ▁that ▁end , ▁they ▁hold ▁large ▁numbers ▁of ▁stra ins ▁of ▁a ▁few ▁different ▁species . ▁ ▁More ▁specifically , ▁stra ins ▁from ▁ 7 6 ▁different ▁species ▁representing ▁ 2 3 ▁different ▁gener a . ▁Of ▁these , ▁there ▁are ▁more ▁than ▁ten ▁stra ins ▁for ▁only ▁nin ete en ▁different ▁species . ▁ ▁These ▁stra ins ▁have ▁been ▁depos ited ▁by ▁ 3 1 0 ▁different ▁individuals , ▁ 6 4 ▁of ▁whom ▁have ▁depos ited ▁only ▁one ▁stra in . ▁The ▁F G SC ▁also ▁holds ▁a ▁number ▁of ▁non - access ioned ▁stra ins ▁including ▁the ▁wild - type ▁stra in ▁collection ▁of ▁Dr . ▁David ▁Per kins ▁as ▁well ▁as ▁Ne uro sp ora ▁stra ins ▁from ▁a ▁number ▁of ▁other ▁research ers ▁who ▁have ▁retired . ▁These ▁are ▁held ▁with ▁the ▁understanding ▁that ▁they ▁will ▁keep ▁them ▁as ▁long ▁as ▁space ▁is ▁available . ▁They ▁are ▁not ▁cur ated ▁and ▁are ▁available ▁on ▁an ▁as - is