|本期目录/Table of Contents|

[1]李浩霞,尹跃,杨斌,等.枸杞果胶酯酶基因LbPME克隆及表达分析[J].江苏农业科学,2021,49(18):33-38.
 Li Haoxia,et al.Cloning and expression analysis of pectin methylesterase gene (LyPME) in wolfberry (Lycium barbarum Linn.) fruit[J].Jiangsu Agricultural Sciences,2021,49(18):33-38.
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枸杞果胶酯酶基因LbPME克隆及表达分析(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第49卷
期数:
2021年第18期
页码:
33-38
栏目:
生物技术
出版日期:
2021-09-20

文章信息/Info

Title:
Cloning and expression analysis of pectin methylesterase gene (LyPME) in wolfberry (Lycium barbarum Linn.) fruit
作者:
李浩霞1 尹跃2 杨斌2 安巍2 赵建华2
1.宁夏农林科学院荒漠化治理研究所,宁夏银川 750002; 2.宁夏农林科学院枸杞科学研究所/国家枸杞工程技术研究中心,宁夏银川 750002
Author(s):
Li Haoxiaet al
关键词:
枸杞果胶酯酶基因克隆表达
Keywords:
-
分类号:
S188
DOI:
-
文献标志码:
A
摘要:
以宁夏枸杞(Lycium barbarum L.)’宁杞1号’果实为材料,利用RT-PCR技术,克隆出LbPME的全长序列为1 152 bp,包含完整的开放阅读框(ORF),编码有384个氨基酸,蛋白质分子量为42.63 ku,理论等电点9.20;LbPME编码的蛋白包含2个可能的N-糖基化结合位点(Asn46和Asn183),4个底物结合位点(Thr166、Gln201、Arg301和Trp303)和2个酶活性位点(Asp224和Asp245)。分析发现,该蛋白由多个呈右手螺旋的β折叠肽链组成,且含有1个中空三角柱状的PME经典结构;LbPME与茄科的烟草的同源性达到90.86%。利用实时荧光定量技术,发现不同组织中LbPME均有表达,且在茎中最高而叶中最低,两者存在显著差异;随着果实的发育,LbPME表达量呈现出先升后降趋势,在青果期表达量最高,随后显著降低,在成熟期维持较低水平。本研究结果为进一步探讨枸杞LbPME的功能奠定了基础。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2021-01-05
基金项目:国家自然科学基金(编号:32060359);宁夏自治区科技创新领军人才项目(编号:KJT2017004);宁夏自治区农业科技自主创新专项(编号:NKYJ-18-16)。
作者简介:李浩霞(1977―),女,甘肃景泰人,副研究员,主要从事旱作农业及栽培生理研究。E-mail:lihaoxia0943@163.com。
通信作者:赵建华,博士,副研究员,主要从事枸杞种质遗传改良与分子生物学研究。E-mail:zhaojianhua0943@163.com。
更新日期/Last Update: 2021-09-20