Resistant ntau yam yuav tso tawm tom qab xyoo no rau cov neeg cog qoob loo
Strawberry poob los ntawm Chaw Txom Nyem wilt tuaj yeem dhau los ua kev hem thawj tsawg dua tom qab cov kws tshawb fawb ntawm University of California, Davis, nrhiav pom cov noob uas tiv taus cov kab mob tuag hauv av.
Cov kev tshawb pom, luam tawm hauv phau ntawv ceev xwm txheej Theoretical thiab Applied Genetics, yog qhov ua tiav ntawm kev ua haujlwm ntau xyoo, thiab qhov kev tshawb pom yuav pab tiv thaiv cov kab mob ploj, hais tias Steve Knapp, tus thawj coj ntawm Strawberry Breeding Program ntawm UC Davis.
"Qhov peb tau ua tiav ntawm no yog qhov tseem ceeb thiab nws muaj txiaj ntsig rau kev lag luam thiab nws yuav tiv thaiv cov neeg cog qoob loo," Knapp tau hais.
Strawberries yog cov qoob loo tseem ceeb hauv California, qhov twg muaj li ntawm 1.8 billion phaus ntawm cov txiv hmab txiv ntoo muaj txiaj ntsig tau loj hlob txhua xyoo, ua rau kwv yees li 88% ntawm cov khoom tau sau hauv Tebchaws Meskas.
Nrhiav cov noob tuaj yeem tiv thaiv a Chaw Txom Nyem wilt pandemic.
Glenn Cole, tus kws yug tsiaj thiab tus thawj saib xyuas teb nrog Strawberry Breeding Program hais tias "Tus kab mob tau pib tshwm sim ntau dua thiab qis dua hauv lub xeev." “Thaum lub wilt nkag rau hauv, cov nroj tsuag tsuas yog poob. Koj muaj tag nrho tuag. "
Nrhiav kev tawm tsam
UC Davis cov kws tshawb fawb tau tshuaj xyuas ntau txhiab tsob txiv pos nphuab hauv Tsev Kawm Qib Siab Kev Ua Liaj Ua Teb thiab Ib Cheeb Tsam Kev Tshawb Fawb 'cov chaw zov me nyuam thiab coj cov qauv DNA. Tom qab ntawd lawv tau siv kev tshuaj ntsuam genetic kuaj thiab tsim DNA kuaj mob los txheeb xyuas cov noob uas tiv taus rau thawj haiv neeg ntawm Chaw Txom Nyem xav tau.
Cole tau hais tias "Cov noob tau ntab ncig hauv cov kab mob strawberry tau ntau txhiab xyoo," Cole tau hais, tab sis tsis muaj leej twg ua haujlwm los txheeb xyuas lawv.
Qhov kev txhim kho tshiab kawg no coj "strawberry mus rau xyoo pua 21st hais txog kev daws qhov teeb meem no," Knapp tau hais.
Tiv thaiv cov qoob loo yav tom ntej
Qhov kev ua haujlwm no txhais tau hais tias cov neeg yug tsiaj tuaj yeem qhia cov noob resistant mus rau yav tom ntej strawberry ntau yam. Lub caij nplooj zeeg no qhov kev pab cuam yuav tso tawm tshiab cultivars uas muaj cov Chaw Txom Nyem wilt kuj gene. Thiab cov cuab yeej kuaj DNA yuav pab cov neeg yug tsiaj teb rau cov tshiab Chaw Txom Nyem wilt variants uas txhim kho.
"Yuav muaj kev hem thawj tshiab thiab peb xav npaj rau lawv," Knapp tau hais. "Peb xav nkag siab tias qhov no ua haujlwm li cas hauv strawberries kom muaj kev hem thawj tshiab tshwm sim, peb tuaj yeem daws lawv sai li sai tau."
“Yog koj tsis muaj Chaw Txom Nyem kev tawm tsam, koj ua tiav, "Cole hais. "Tus kab mob tuaj yeem nyob ib puag ncig ntau dua li koj xav."
Chaw Txom Nyem wilt tsis yog ib txwm muaj teeb meem, tab sis thaum lub fumigant methyl bromide tau phased tawm hauv 2005, tej yam hloov. Cov kab mob yog nyob rau hauv cov av, thiab tsis muaj fumigant, piv txwv ntawm wilt nce, tshwj xeeb tshaj yog nyob rau hauv cov cheeb tsam uas cov qoob loo tsis tig.
Kev yug me nyuam tshiab
Knapp thiab Cole tau ceeb toom rau kev lag luam txog tam sim no strawberry ntau yam uas muaj kev tiv thaiv kom lawv tuaj yeem xaiv cov nroj tsuag nrog kev tiv thaiv ntxiv. Cov tshuaj tiv thaiv tshiab tawm tom qab xyoo no yuav tsim nyog rau ntau lub caij loj hlob.
"Nws yog ib qho loj," Cole hais. "Txhua yam yog nce ntxiv hauv kev cog qoob loo, tab sis nws yog qhov loj."
Cov kws tshawb fawb cog qoob loo tau cog cov txiv pos nphuab hauv UC Davis txij li xyoo 1930, thiab lawv tau tshaj tawm ntau tshaj 60 hom patented los ntawm kev pabcuam pejxeem.
Txhua txoj haujlwm tau tshwm sim ntawm UC Davis. Dominique Pincot, Mitchell Feldmann, Mishi Vachev, Marta Bjornson, Alan Rodriguez, Randi Famula thiab Gitta Coaker los ntawm Department of Plant Sciences, thiab Thomas Gordon los ntawm Department of Plant Pathology tau pab tshawb fawb, xws li Michael Hardigan thiab Peter Henry, leej twg. Tam sim no nyob rau ntawm US Department of Agriculture Agricultural Research Service, thiab Nicholas Cobo, uas nyob hauv University of La Frontera hauv Chile.
Cov kev tshawb fawb tau txais nyiaj los ntawm UC Davis thiab nyiaj pab los ntawm USDA National Institute of Food and Agriculture Specialty Crop Research Initiative.
Ib qhov chaw: https://www.ucdavis.edu