Chomera choyenera kulimidwa ndi chokoma komanso chokolola zambiri, komanso chosamva matenda ndi tizirombo. Koma ngati majini ogwirizanawo ali motalikirana kwambiri ndi chromosome, ena mwa mikhalidwe yabwinoyi akhoza kutayika posankha. Pofuna kuwonetsetsa kuti zabwino zonse zimafalikira palimodzi, ofufuza a ku Karlsruhe Institute of Technology (KIT) adagwiritsa ntchito lumo la molekyulu ya CRISPR/Cas kutembenuza ndi kulepheretsa ma chromosome khumi ndi anayi a Arabidopsis, malipoti. Tsamba la Phys.org. Makhalidwe omwe ali mu gawo ili la chromosome amakhala "osawoneka" ku kusinthana kwa majini ndipo motero amatha kupatsirana mosasintha.
Kusintha kokhazikika, kuyika kapena kupondereza majini muzomera ndizotheka kugwiritsa ntchito lumo la CRISPR/Cas. Njirayi ingagwiritsidwe ntchito kuwonjezera kukana kwa mbewu ku tizirombo, matenda kapena zotsatira za chilengedwe Lachitatu.
"M'zaka zaposachedwapa, kwa nthawi yoyamba, takhala tikugwiritsa ntchito CRISPR / Cas osati kusintha ma gene, komanso kusintha ma chromosomes," akutero Prof. Holger Puchta, yemwe wakhala akuphunzira masikisi a jini ndi gulu lake. ku China Botanical Institute kwa zaka 30.
Tsopano ofufuza atha kupewa kusintha kwa majini, zomwe nthawi zambiri zimakhala mbali ya cholowa, koma zimatha kusokoneza mgwirizano pakati pa makhalidwe. Mpaka pano, ngati chibadwa cha zomera chikafalitsidwa pamodzi, majini a mikhalidwe imeneyo anayenera kukhala pamodzi pa chromosome imodzi. Ngati majini oterowo ali motalikirana, nthawi zambiri amasiyana panthawi ya cholowa, kotero kuti khalidwe lothandiza likhoza kutayika posankha.
Pofufuza, asayansi anatsatira chitsanzo cha chilengedwe. "Inversions - mtundu wosawoneka bwino - nthawi zambiri zimachitika pang'onopang'ono muzomera zakuthengo komanso zolimidwa. Taphunzira kuchokera ku chilengedwe, kugwiritsa ntchito ndi kukulitsa chidziwitso chathu cha njira zachilengedwe", akutero Puchta.
Mothandizana ndi Prof. Andreas Huben wa Institute for Plant Genetics and Cultivated Plant Research. Leibniz (IPK) Puchta ndi gulu lake adatembenuza magawo asanu ndi anayi mwa magawo khumi a ma chromosome mu chamoyo chachitsanzo, Arabidopsis thaliana. Kumapeto kwa ma chromosome m’pamene majiniwo anakhalabe ndi ndondomeko yake yoyambirira. "Ndi tiziduswa timeneti, chromosome imatha kuperekedwa ku m'badwo wotsatira monga momwe ma chromosome ena osatayika," akutero Puchta.
Kuti mbewu zaulimi zikhale zogwira mtima, ndikofunikira kuphatikiza mikhalidwe yabwino momwe mungathere pachomera chimodzi. “N’zoona kuti obereketsa zomera amafuna kuti mankhwala awo azikhala okoma, okhala ndi mavitamini ochuluka monga momwe angathere, komanso kuti asadwale matenda. Ndi njira yathu, titha kufewetsa izi mtsogolomu, "adatero Puchta.