Integrated transcriptomicsand physio-biochemical analysis revealed key genes affecting the seed germination of Leymus chinensis
文献类型： 外文期刊
作者： Yumei Feng;; Wenlong Gong;;Lemeng Liu;; Chunyu Tian;;Yanting Yang;;and Zinian Wu
关键词： Leymuschinensis;seedgermination;seedhulls;RNA-seq;transcriptionfactor
期刊名称： Frontiers in Plant Science
ISSN： 1664-462X
年卷期： 2025 年
页码：
收录情况： SCIE（2025版）
摘要： Leymuschinensis,alsoknownasalkaligrass,isaperennialrhizomatous herbaceousplantwithasignificantecologicalandeconomicvalue.However,itsindustrialdevelopmentishinderedbylowseedgerminationrates.Therefore,howtobreaktheseeddormancyandimprovethegerminationrateof L.chinensisseedshasbecomeahottopicnowadays.Inthisstudy,the increaseofgibberellin(GA)contentisoneofthemainfactorspromotingthe seedgerminationofL.chinensis.Furthermore,tofurtherexplorethemolecular mechanismsunderlyingseedgerminationregulation,RNAsequencing(RNA-seq)analysisofseedsatdifferentdevelopmentalstageswascarriedoutto explorethepotentialregulatoryfactorsofseedhullsaffectingtheseed germinationofL.chinensis.Atotalof21,564,21,010,and31,795differentially expressedgenes(DEGs)wereidentifiedin“H_CK_0vs.DH_CK_0”,“H_CK_2vs.DH_CK_2”,and“H_CK_7vs.DH_CK_7”,respectively.KyotoEncyclopediaof GenesandGenomes(KEGG)analysisshowedthattheDEGsweresignificantly enrichedinplanthormonesignaltransduction,starchandsucrosemetabolism,andmitogen-activatedproteinkinase(MAPK)signalingpathways.Withinthese pathways,weidentifiedseveralcandidategenespotentiallyinvolvedinseedhull-mediatedgerminationregulation,includingthoseencodinga-amylase(AMY1),b-amylase(BAM1),a-xylosidase(XYL1),b-glucosidase(BGLU10/45),auxin-responsiveprotein(IAA18),andtranscriptionfactors(WRKY,AP2/ERF,ABI2,bZIP,andNAC).Theseresultsprovidevaluablegeneticresourcesforstudying themolecularmechanismofL.chinensisseedgermination.
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