水稻苗期响应镉胁迫的转录组分析

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中图分类号：S511 文献标识码：A 文章编号：1006-060X（2025）12-0005-13

引用格式：文萱，刘腾飞，胡文彬，等.水稻苗期响应镉胁迫的转录组分析[J].湖南农业科学，2025（12）：5-17.DOI：10.16498/j.cnki.hnnykx.2025.012.002

Abstract：TheseedlingsoftheindicacultivarKasalath'withhighcadmiumaccumulation，theindicacultivar'R2292'withlow cadmium accumulation，and theirhybrids'KR-141'and'KR-267'wereused forthe hydroponic experimentsundercadmiustress. Transcriptomesequencingwasconductedtoinvestigatetheresponsemechanismsoftherootsandleavesofriceseedlingstocadmium stress.Theresultsrevealed 30diferentiallyexpressed genes（DEGs）intherotsandleavesofboth highcadmium-accumulating cultivars （Kasalath'andKR-141）andlowcadmium-accumulatingcultivars （R2292'andKR-267）.TeGOandKEGGenrichent analysesevealedthattwopathways，glutathionemetabolicprocessandtransmembranetransport，playedakeyroleintheesposeto cadmiumstressIndition，tegenesintefourmodles，MEtan，Ecyan，EbluendEgreen，erereeedbyeeigted geneco-expresionnetworkanalysis（WGCNA）andcompared withthe30DEGsand19sharedDEGswereidentified.Thesegenes serveas candidates for breeding rice cultivars with low cadmium accumulation.

Keywords：rice; cadmium stress; transcriptome analysis; differentially expressed gene

镉（Cd）是一种具有较高迁移率的有毒重金属，主要通过食物链在人体内富集，具有致癌、致畸等危害，严重威胁人类健康[1-3]。（剩余17104字）