生姜倍性对苗期低氮环境的生理响应和转录特性分析

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Abstract：Theploidygroupsofingermayexhibitdiferentevironmentaladaptability，buttherehasbeenlitleresearchon this aspectof ginger.Toclarifythedifferences inadaptabilitytolowntrate nitrogenamonggingerplantsofdiferentploidy at seedling stage，thispaperselectsmixoploidgingeranddiploidginger，andcarriesoutthediferenceanalysisofgrowthrelatedphysiologicalandtranscriptionalresponsesofdifferentploidygingeratseedlingstageunderlownitratenitrogenby sand culture method.Theresults show thatunder low nitrate nitrogen，the plant height，stem diameter，branch number，and weightperplantofmixedploid gingeratseedlingstageareallowerthanthoseofdiploidginger.Inadition，basedon transcriptome-based genesetenrichment analysis （GSEA）and weightedgeneco-expresion network analysis （WGCNA）， thehigherexpressionofphotosyntheticrelatedgenes indiploidgingerunderlownitrogen treatmentis theinternalreasonfor its higher individualbiomass compared tomixoploid ginger.Therefore，therearediferences inlownitrogenadaptability betweenmixed ploidand diploid ginger under low nitrogentreatment，with mixoploid ginger showing poorer adaptability. This finding provides a theoretical basis for rational application of nitrogen fertilizer to diffrent ploid ginger.

eywords：Ginger;nitrate nitrogen;ploidyanalysis; differentially expressed gene

生姜作为药食同源的重要经济作物，以根状茎作为无性繁殖材料进行栽培种植[]。（剩余11509字）