Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At4g32770	Involved in the synthesis of both tocopherols and tocotrienols (vitamin E), which presumably protect photosynthetic complexes from oxidative stress.	Isolation of an Arabidopsis mutant lacking vitamin E and identification of a cyclase essential for all tocopherol biosynthesis.; 2002; DOI: 10.1073/pnas.182330899; PMID: 12213958; https://pubmed.ncbi.nlm.nih.gov/12213958/
Rice	Os02g0276500	Involved in the synthesis of both tocopherols and tocotrienols (vitamin E), which presumably protect photosynthetic complexes from oxidative stress.	The role of tocopherol cyclase in salt stress tolerance of rice (Oryza sativa).; 2011; DOI: 10.1007/s11427-011-4138-1; PMID: 21318489; https://pubmed.ncbi.nlm.nih.gov/21318489/