Haufinyane tjena, Moprofesa Chunxiang You oa Univesithi ea Temo ea Shandong le basebetsi-'moho le eena ba ile ba hatisa sehlooho sa tlhahlobo se bitsoang "Taolo ea ho butsoa ha litholoana tse nang le nama: ho tloha ho lintlha tse ngotsoeng ho ea ho liphetoho tsa epigenetic" Lipatlisiso tsa Temo ea Lirapa.
"Tlhabollong ena, re buisana ka tsebo ea hajoale ea lintlha tsa mongolo tse laolang ho butsoa hammoho le matshwao a ethylene le tikoloho (leseli le mocheso) mofuteng oa tamati oa semela (Solanum lycopersicum) le litholoana tse ling tse nama. Re totobatsa likarolo tsa bohlokoa tsa taolo ea epigenetic, "bangoli ba re.
Ethylene e etsa hore ho be le mokhoa o hlophisitsoeng hantle oa pontšo o hokahanyang kholo ea limela le nts'etsopele le ho butsoa ha litholoana, 'me bopaki bo bongata bo fana ka maikutlo a hore ethylene, hammoho le lihomone tse ling tsa semela, li sebetsa le li-TF tse amanang le ho butsoa ho laola ho butsoa ha litholoana. Pampiri ena e hlahloba mekhoa ea limolek'hule ea li-TF tse laolang ho butsoa ha litholoana ka mekhoa e itšetlehileng ka ethylene le / kapa -e ikemetseng.
Ha re nka tamati e le mohlala, li-TF tse kang NACs, NOR, MOR-like1, HB-1, WRKY1, GRAS4/38, ARF2A/2B, le AREB li laola polelo ea ethylene le liphatsa tsa lefutso tse amanang le ho butsoa ka mokhoa o itšetlehileng ka ethylene, ka hona e laola ho butswa ha ditholwana. Ho bokella le ho senyeha ha chlorophyll nakong ea ho butsoa ha tamati ho laoloa ke mefuta e sa tšoaneng ea TF, ho akarelletsa le GLK1/2, ARFs, le TKN2/4, ka mokhoa o ikemetseng oa ethylene, 'me mokhoa ona o boetse o fetotsoe ke ho sebelisana ha li-hormone le matšoao a bobebe. . MADS-box TFs (RIN, FUL1/2, TGL1) le ethylene li na le potoloho ea taolo e laolang ho butsoa ha litholoana ethylene-mokgwa o itshetlehileng le o ikemetseng.
Liphuputso tsa morao-rao li bontšitse hore liphetoho tsa epigenetic le tsona li phetha karolo ea bohlokoa ho butsoeng ha litholoana. DNA methylation, histone methylation, le acetylation ke liphetoho tse kholo tsa epigenetic tse susumetsang ho butsoa ha litholoana, tseo har'a tsona DNA methylation le H3K27me3 histone methylation e leng matšoao a khatello ea epigenetic. N6methyladenosine (m6A) ke phetoho e atileng ka ho fetisisa ea mRNA ho eukaryotes, 'me lithuto tsa morao-rao li senotse tlhahiso ea maikutlo pakeng tsa m6Phetoho ea mRNA le DNA methylation e laolang ho butsoa ha litholoana tsa tamati.
Qetellong, bangoli ba hlahloba mohlala o sebetsang oa li-phytohormones, li-TF tse amanang le ho butsoa, le liphetoho tsa epigenetic bakeng sa taolo e matla ea ho butsoa ha litholoana tsa tamati, eo, joalo ka ha bangoli ba bolela, "e ka sebetsang e le tataiso ha ho ithutoa mekhoa e laolang ho butsoa ha mefuta e meng ea litholoana," le "ho tataisa maano a macha bakeng sa ho e qhekella ka katleho."
Mohloli: https://phys.org