详细信息
牡丹查耳酮合酶基因Ps-CHS1的克隆及其组织特异性表达 被引量:22
Isolation and Tissue-specific Expression of Chalcone Synthase Gene Ps-CHS1 in Tree Peony
文献类型:期刊文献
中文题名:牡丹查耳酮合酶基因Ps-CHS1的克隆及其组织特异性表达
英文题名:Isolation and Tissue-specific Expression of Chalcone Synthase Gene Ps-CHS1 in Tree Peony
第一作者:周琳
机构:[1]中国林业科学研究院林业研究所,国家林业局林木培育重点实验室
年份:2010
期号:8
起止页码:1295-1302
中文期刊名:园艺学报
外文期刊名:Acta Horticulturae Sinica
收录:CSTPCD;;Scopus;北大核心:【北大核心2008】;CSCD:【CSCD2011_2012】;
基金:国家‘863’项目(2006AA100109);国家林业局‘948’项目(2006-4-C07)
语种:中文
中文关键词:牡丹;查耳酮合酶基因;相对荧光定量PCR;组织特异性表达
外文关键词:tree peony; Paeonia suffruticosa; chalcone synthase gene; relative real-time PCR; tissue-specific expression
分类号:S685.11
摘要:以牡丹(Paeonia suffruticosa)品种'彩绘'为试材,采用RT-PCR和RACE方法从花瓣中获得了一个牡丹查耳酮合酶(chalcone synthase,CHS)基因cDNA全长,命名为Ps-CHS1,GenBank登录号为GQ483511。序列分析结果表明,Ps-CHS1全长1475bp,包含82bp的5′非编码区、208bp的3′非编码区和一个长度为1185bp编码394个氨基酸的开放阅读框。氨基酸序列分析显示该基因编码的蛋白具有CHS家族保守存在的所有功能活性位点和特征多肽序列。序列比对和系统进化分析表明,Ps-CHS1与杨柳科、锦葵科、蔷薇科等植物的CHS亲缘关系较近,相似性达90%以上。相对荧光定量PCR分析表明,Ps-CHS1在花瓣中的表达量最高,其次是萼片,再次是叶片和雄蕊,在心皮中表达量最低。
In this work, a full-length cDNA sequence of chalcone synthase (CHS) gene was obtained from petals of Paeonia suffruticosa 'Caihui' using RT-PCR and RACE, named Ps-CHS1 (GenBank accession No. GQ483511) . Sequence analysis indicated that Ps-CHS1 is 1 475 bp in full length and contains a 5'-untranslated region (5'-UTR) of 82 bp, a 3'-UTR of 208 bp, and an opening reading frame (ORF) of 1 185 bp encoding a 394 predicted amino acids residues which possessed all the conserved active sites for the CHS function as well as the family signature. Sequence alignment and phylogenetic analysis revealed that Ps-CHS1 shared more than 90% homology with CHS from plants in Salicaceae, Malvaceae and Rosaceae. Relative real-time PCR analysis indicated that Ps-CHS1 showed the highest transcript abundance in petals, moderate levels in sepals, low levels in leaves and stamens and the lowest levels in carpels.
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