Li-pathologists tsa limela li ithutile ka li-genome tsa lisampole tse ka bang 140 tsa likokoana-hloko - tsa nalane le tsa sejoale-joale - ho tsoa linaheng tse 37 lik'honthinenteng tse tšeletseng ho lekola kholo ea mefuta e fapaneng ea Li-infestans tsa Phytophthora, sesosa se ka sehloohong sa lefu la kamora nako ea limela tsa litapole le tamati. Phuputso, e phatlalalitsoeng ho Scientific Reports, e bonts'a hore lesika la nalane le bitsoang FAM-1 le fumanoe hoo e ka bang likarolo tse tharo ho tse nne tsa mehlala (73%) le lik'honthinenteng tsohle tse tšeletseng.
“FAM-1 e ne e atile haholo ho feta kamoo ho neng ho nahanoa pele, e namela ho tloha Europe ho ea Asia le Afrika litseleng tsa khoebo tsa kolone ea Borithane,” ho rialo mongoli Jean Ristaino, moprofesa oa mafu a limela Univesithing ea Naha ea North Carolina. “Lesika le boetse le fumanoe ka nako e fetang lilemo tse 140.”
FAM-1 e bakile ho phatloha ha litapole kamora nako United States ka 1843 mme lilemo tse peli hamorao ho Great Brithani le Ireland. E boetse e fumanoe mehlala ea nalane e tsoang Colombia-e fana ka maikutlo a hore e tsoa Amerika Boroa.
FAM-1 e bakile mafu a maholo le a fokolisang a lefu la morao-rao Europe, a siea tlala le ho falla. Ristaino e fana ka maikutlo a hore kokoana-hloko e fihlile Europe ka litapole tse tšoaelitsoeng likepeng tsa Amerika Boroa kapa ka kotloloho ho tsoa litapoleng tse nang le ts'oaetso tse tsoang United States. FAM-1 e pholohile lilemo tse ka bang 100 United States empa mofuta o mong o fapaneng oa kokoana-hloko e bitsoang US-1 oe fallisitse, Ristaino o re.
"US-1 ha se setloholo se tobileng sa FAM-1, empa ke lesika la bo-khaitseli," Ristaino o re. "Re fumane US-1 ho li-sampuli tse 27% thutong mme li fumanoe hamorao."
Mefuta e mabifi le ho feta ea kokoana-hloko e simolohileng Mexico US-1 haesale e hlasela US-1. Lijalo tsa tamati tsa mariha-li lengoa Mexico ebe li kenella Amerika - li na le kokoana-hloko, Ristaino o re.
Phuputso e boetse e fana ka maikutlo a hore pathogen e hasana pele ho litapole ebe hamorao e tlolela ka tamati. Ristaino o re ho ne ho ke ke ha etsahala hore ho hasane likokoana-hloko ka tamati e butsoitseng litsing tsa likepe.
Litlamorao tsa pathogen ha li felle feela ho felisoeng ha lijalo tsa litapole tsa Ireland lilemong tse 175 tse fetileng. Ristaino o re, limilione tse likete li sebelisoa selemo se seng le se seng ho leka ho laola likokoana-hloko. Litapole linaheng tse tsoelang pele li kotsing haholo hobane li-fungicides ha li fumanehe hangata ebile ha li na theko.