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时间:2017-12-07
《七星瓢虫滞育关联基因的转录组学分析》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、环境昆虫学报JournalofEnvironmentalEntomology,March2016,38(2):238-248ISSN1674-0858doi:10.3969/j.issn.1674-0858.2016.02.3七星瓢虫滞育关联基因的转录组学分析1,22221!2*齐晓阳,任小云,安涛,陈红印,黄建,张礼生(1.福建农林大学植物保护学院,农业部闽台作物有害生物综合治理重点实验室,福州350002;2.中国农业科学院植物保护研究所,中美生物防治实验室,北京100081)摘要:对七星瓢虫正常发育、滞育以及滞育解除的雌成虫进行RN
2、A测序,并对筛选出来的滞育相关基因进行KEGG通路富集分析,从分子水平解析七星瓢虫滞育发机理。本研究以正常发育产卵、滞育30d以及滞育贮存30d后解除产卵的七星瓢虫雌成虫为研究对象,分别抽提RNA,合成cDNA,构建cDNA文库,文库检测合格后在IllumminaHiseq2500测序仪上进行双向测序。根据测序结果,共获取unigene82820个。采用两两比较法对正常发育组和滞育组、滞育组和滞育解除组进行差异表达分析,分别获得差异表达基因3501个和1427个。深入分析两组比对结果,将在滞育组上调且滞育解除组下调的unigene定义为滞
3、育关联基因,共有443个基因为滞育关联基因。应用KEGGKAAS在线pathway比对分析工具对滞育关联基因进行通路富集分析,结果发现这些基因主要集中在碳水化合物代谢、脂质代谢以及信号转导等途径中。关键词:七星瓢虫;滞育;转录组测序;滞育关联基因;KEGG分析、碳水化合物代谢中图分类号:Q963;S476文献标志码:A文章编号:1674-0858(2016)02-0238-11Transcriptomeanalysisofdiapause-associatedgenesofCoccinellaseptempunctataL.1,22221
4、*2*QIXiao-Yang,RENXiao-Yun,ANTao,CHENHong-Yin,HUANGJian,ZHANGLi-Sheng(1.KeyLaboratoryofIntegratedPestManagementforFujian-TaiwanCrops,MinistryofAgriculture,CollegeofPlantProtection,FujianAgricultureandForestryUniversity,Fuzhou350002,China;2.InstituteofPlantProtection,Chine
5、seAcademyofAgriculturalSciences,Sino-AmericanBiologicalControlLaboratory,USDA-ARS,Beijing100081,China)Abstract:TounderstandthediapausemechanismofCoccinellaseptempunctataL.atmolecularlevel,transcriptomesequencingwascarriedoutforfemaleadultsinthreedifferentstates,i.e.,non-d
6、iapause(ND),diapause(D)anddiapauseterminated(DT),andKEGGpathwayenrichmentanalysiswasperformedontheup-regulatedexpressedgenes.Inresearch,totalRNAwasrespectivelyextractedfromthefemaleadultswithnormaldevelopmentafteroviposition,diapause30days,anddiapause-terminatedafterdiapa
7、use30days,andcDNAsamplesweresynthesizedtogeneratecDNAlibraries.Afterqualityinspection,twopairsequencingwasperformedwiththeIlluminaHiSeq2500system.Totalof82820unigeneswereyieledaccordingtosequencingresults.WhenNDandDwerecompared,3501differentiallyexpressedgenes(DEGs)werere
8、vealed,and1427DEGsweredetectedbetweenDandDT.TheDEGswhichwashighlyexpressedinthediapausestagecomp
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