陆地棉和海岛棉种间TCP转录因子比较分析

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关键词陆地棉;海岛棉;TCP转录因子；生物信息学；基因组鉴定；系统进化;组织表达

中图分类号S562文献标识码A

文章编号 0517-6611（2026）02-0001-12

doi：10.3969/j.issn.0517-6611.2026.02.001

Abstract[Objective]To compare the characteristics of TCP gene family members between G . hirsutum and G .barbadense.[Method]Bioinformatics methods were used to identify the TCP gene family of G hirsutum and G . barbadense in the whole genome，and to compare and analyze theirphysicoccalprotis，hosoelolzatiosysteaticvolutiondiseexpresioResult」9ndge dentified in G . hirsutumandG.barbadense，respectively，with31and34 pairsof homologous genes distributedon22and21chromosomes，respectively，all of which were hydrophilic proteins.59 pairs of homologous genes were identified between G.hirsutum and G . barbadense. The systematicevolutionaryrelationshipshowedthatitwasdividedintothreesubfamilies：CIN，CYC/TB1andPCF.TCPgenefamilyembersf the same subfamily in G .hirsutum and G . barbadense had similar gene structures.Gene tissue-specific expresson analysis revealed that the gene Ghir_D13G006190 was expressed in all tissues of G .hirsutum，while the homologous gene Gbar_D13Goo6O10 was not expressed in any tissue of G .barbadense，andbelongedtothePCFclassintheevolutionarytree.Ghir_A09Go090Owasonlyhighlyexpressedinpetalsof G .hirsutum，while the homologous gene had the highest expression levels in petals，anthers and styles of G . barbadense，and belongs to the CIN class in the evolutionary tree.Ghir_A12GO2376O was most highly expressed in leaves of G . hirsutum，while the homologous geneGbar_AGo88smosthighlyexpressedinstesofGbrbdese，ndothelongtoeFlassineevolutioarytr.is acting element analysis showed that the promoters of the TCP gene family of G . hirsutum and G . barbadense contain many regulatory elements relatedtoplantligpoeiologicalrsoseesosendsrsspse.oclusioisudrodsot theoretical basis for further exploring the functional diferences of TCP transcription factors between G . hirsutum and G . barbadense.

KeywordsGossrbdesetrasitoctofoais;ocntfvoi sue expression

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