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ID:9066411
大小:1.31 MB
页数:9页
时间:2018-04-16
《红掌查尔酮异构酶基因的克隆与表达分析》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、园艺学报,2016,43(7):1402–1410.ActaHorticulturaeSinica1402doi:10.16420/j.issn.0513-353x.2015-0872;http://www.ahs.ac.cn红掌查尔酮异构酶基因的克隆与表达分析121,31,3111,*杨哲,刘克林,彭佳佳,秦扬,郑高言,明军,刘春123(中国农业科学院蔬菜花卉研究所,北京100081:北京市大东流苗圃,北京102211;宁夏大学农学院,银川750021)摘要:以红掌栽培品种‘Dakota’为材料,采用RA
2、CE技术克隆获得AnCHI基因的cDNA序列,分析花青素含量与该基因表达的关系,进一步完善红掌花青素合成途径。结果表明:AnCHI序列全长为1117bp,其中开放阅读框为777bp,编码258个氨基酸;AnCHI在不同时期红掌佛焰苞以及根、茎、叶、肉穗组织中均有表达,且在佛焰苞发育前期表达量明显高于后期,测得花青素含量与基因表达量变化基本一致;构建的pGEX-4T1-AnCHI重组表达载体在原核中正确表达。初步验证了AnCHI的表达可能对红掌佛焰苞花青素的合成有一定促进作用。关键词:红掌;AnCHI;花青素
3、;表达分析中图分类号:S682文献标志码:A文章编号:0513-353X(2016)07-1402-09CloningandExpressionAnalysisofChalconeIsomeraseGenefromAnthuriumandraeanum121,31,3111,*YANGZhe,LIUKe-lin,PENGJia-jia,QINYang,ZHENGGao-yan,MINGJun,andLIUChun12(InstituteofVegetablesandFlowers,ChineseAcadem
4、yofAgriculturalSciences,Beijing100081,China;Nurseryof3Dadongliu,Beijing102211,China;CollegeofAgricuture,NingxiaUniversity,Yinchuan750021,China)Abstract:AfulllengthcDNAofchalconeisomerase(CHI)wasamplifiedfromAnthuriumandraeanumL.‘Dakota’byusingRACEtechnolog
5、y.Therelationshipbetweenitsexpressionpatternsandanthocyanincontentweredissectedforthepurposeoffurtherimprovingtheanthocyaninbiosyntheticpathwayofanthurium.TheresultsshowedthattheAnCHIcDNAwas1117bpwitha777bpopenreadingframeinfull-lengthwhichencoding258amino
6、acids.AnCHIwasexpressedindifferentdevelopingperiodsofspathesaswellasinroots,stems,leavesandspadixesandtheexpressionlevelsofAnCHIintheearlystages(1–4)ofspathesweresignificantlyhigherthanthatinmaturestages(5–8).Thecontentofanthocyaninwaschangedconsistentlywi
7、ththegeneexpression,whiletherecombinantexpressionvectors—pGEX-4T1-AnCHIwascorrectlyexpressedinprokaryotes.TheresearchsuggestedthatAnCHImayplayanimportantroleinpromotingtheanthocyaninsynthesisofAnthuriumandraeanum.Keywords:Anthuriumandraeanum;AnCHI;anthocya
8、nin;expressionanalysis收稿日期:2016–02–01;修回日期:2016–07–07基金项目:北京市科技计划研发攻关项目(YLHH201200109);中国农业科学院与北京市大兴区科技合作项目;农业部园艺作物生物学与种质创制重点实验室项目*通信作者Authorforcorrespondence(E-mail:liuchun@caas.cn)杨哲,刘克林,彭佳佳,秦扬,郑高言,明军,刘春.红掌
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