>tr|A0A6F8Z9D1|A0A6F8Z9D1_9ROSI Cytochrome b6 OS=Betula chichibuensis GN=petB MSKVYDWFEERLEIQAIADDITSKYVPPHVNIFYCLGGITLTCFLVQVATGFAMTFYYRP TVTEAFASVQYIMTEANFGWLIRSVHRWSASMMVLMMILHVFRVYLTGGFKKPRELTWVT GVVLAVLTASFGVTGYSLPRDQIGYWAVKIVTGVPEAIPVIGSPLVELLRGSASVGQSTL TRFYSLHTFVLPLLTAVFMLMHFPMIRKQGISGPL