ation ▁for ▁sugar c ane : ▁one ▁for ▁Sac char um ▁offic inar um ▁by ▁Pap u ans ▁in ▁New ▁Guinea ▁and ▁another ▁for ▁Sac char um ▁sin ense ▁by ▁Aust ron es ians ▁in ▁Taiwan ▁and ▁southern ▁China . ▁Pap u ans ▁and ▁Aust ron es ians ▁originally ▁primarily ▁used ▁sugar c ane ▁as ▁food ▁for ▁domestic ated ▁p igs . ▁The ▁spread ▁of ▁both ▁S . ▁offic inar um ▁and ▁S . ▁sin ense ▁is ▁closely ▁linked ▁to ▁the ▁migr ations ▁of ▁the ▁Aust ron esian ▁pe op les . ▁Sac char um ▁bar ber i ▁was ▁only ▁cultiv ated ▁in ▁India ▁after ▁the ▁introduction ▁of ▁S . ▁offic inar um . ▁ ▁Sac char um ▁offic inar um ▁was ▁first ▁domestic ated ▁in ▁New ▁Guinea ▁and ▁the ▁islands ▁east ▁of ▁the ▁Wal lace ▁Line ▁by ▁Pap u ans , ▁where ▁it ▁is ▁the ▁modern ▁center ▁of ▁divers ity . ▁Begin ning ▁around ▁ 6 , 0 0 0 ▁B P ▁they ▁were ▁select ively ▁b red ▁from ▁the ▁native ▁Sac char um ▁robust um . ▁From ▁New ▁Guinea ▁it ▁spread ▁west wards ▁to ▁mar itime ▁S out heast ▁Asia ▁after ▁contact ▁with ▁Aust ron es ians , ▁where ▁it ▁hy brid ized ▁with ▁Sac char um ▁sp ont ane um . ▁ ▁The ▁second ▁domestic ation ▁center ▁is ▁main land ▁southern ▁China ▁and ▁Taiwan ▁where ▁S . ▁sin ense ▁was ▁a ▁primary ▁cult igen ▁of ▁the ▁Aust ron esian ▁pe op les . ▁W ords ▁for ▁sugar c ane ▁exist