首页|茉莉花萜类合成酶基因JsTPS的克隆及其表达分析

茉莉花萜类合成酶基因JsTPS的克隆及其表达分析

Cloning and Expression Analysis of Terpene Synthase Gene from Jasminum sambac

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以双瓣茉莉花[Jasminum sambac (L.) Ait]花瓣为材料,采用RT-PCR和RACE技术相结合的方法,克隆了萜类合成酶基因(JsTPS)的全长cDNA,该cDNA全长为1 884 bp,其中ORF为1 491 bp,编码496个氨基酸的蛋白,分子量56 989.7 D,与原核表达结果一致.序列分析结果表明,该基因编码的氨基酸序列与油橄榄(Olea europaea)的TPS2具有75%的同源性,同属于α-Farnesene synthase分支.采用荧光定量PCR技术检测JsTP在茉莉花开放过程中的表达量变化,结果表明,表达量在未开放时(18:00)最低,在半开放时(22:00)达到最高.
The full length cDNA of terpene synthase gene (JsTPS) was cloned by combination of RT-PCR and RACE from petals ofJasminum sambac.The results showed that full length cDNA contained 1 491 bp including an 1 884 bp ORF,encoding a 56 989.7 D protein with 496 amino acids whose molecular weight was consistent to that of product of the gene by prokaryotic expression;The result of alignment of amino acid showed that the gene had a homology of 75% to that of olive (Olea europaea),belonging to α-Famesene synthases;Quantities of the gene were detected by real-time PCR in process of opening of flower,the results showed that the expressing level of the gene was minimum at 18:00 when the flowers were not open,then had been increasing until at 22:00 when the expressing level reached to maximum and the flowers was opening.

Jasminum sambacterpene synthase genequantitative real-time PCRprokaryotic expression

俞滢、陈丹、孙君、吕恃衡、陈桂信、叶乃兴

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福建农林大学园艺学院/茶学福建省高等学校重点实验室,福州350002

福建省农业科学院茶叶研究所,福建福安355015

茉莉花 萜类合成酶 实时荧光定量PCR 原核表达

福建省自然科学基金福州市科技局市校合作项目福州市农业局2014年福州茉莉花茶产业提升项目

2016J011102013-G-1032014-3

2016

园艺学报
中国园艺学会 中国农业科学院蔬菜花卉研究所

园艺学报

CSTPCDCSCD北大核心
影响因子:1.127
ISSN:0513-353X
年,卷(期):2016.43(2)
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