菊花BBX基因家族鉴定及UV-A处理下表达模式分析

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中图分类号： 8682.1+1 ；Q943 文献标识码：A 文章编号：1006-060X（2025）08-0080-11

Identification of the BBX Gene Family in Chrysanthemum and Analysis of the Expression Patterns Under UV-A Treatment

LONG Zhen-tao¹，XIANGLi-li²，ZHUFan1

（1.ColegeofpedAiulUsits;.lf HunanAgriculturalUniversity，Changsha4lO128，C）

Abstract：TheBBX（B-box）familyisagroupofincfingerproteintranscriptionfactors thatplaycrucialroles inplantightsignal transduction，photoperiodregulation，andsecondary metabolismregulation.The membersof theBBXgenefamily（CmBBXsin chrysanthemum（ChrysanthemummorifoliumRamat.）weresystematicallyidentifedfromthechrysanthemumgenomedatabase Mum GARDEN，followedbybioiformaticsaalysisandfunctionprediction.Atotalof35CmBBXswereidentifed.Theplogenetic analysisindicatedthatCmBBXscouldbeclasified intofivesub-families，which showeddifferencesintheconserveddomains. Predictioofcis-actingelementsinpromoterreginssowedthatthere werealargenumberoflight-resposiveelements inCmBBXs， andsome membershadMYB-bindingsites.UnderUV-Atreatment，theexpressionpatesoffourCmBBXs weresiilartothatofthe previouslyreported chrysanthemum anthocyaninregulatory geneCmMYB6.It is hypothesized that these CmBBXs maybe involvedin thelight-regulated anthocyaninmetabolism.

Key words： chrysanthemum; BBX gene family; identification; anthocyanin; expression

转录因子是一类具有特殊结构的蛋白质分子，其能够与下游基因启动子中的顺式作用元件或其他蛋白结合，进而调控下游基因的表达[1]。（剩余18310字）