|本期目录/Table of Contents|

[1]刘博婷,唐演儿,李琳,等.铁皮石斛酸性蔗糖转化酶基因家族鉴定及低温下表达分析[J].江苏农业科学,2022,50(24):33-42.
 Liu Boting,et al.Identification of acid sucrose invertase gene family in Dendrobium catenatum Lindl. and its expression analysis under low temperature[J].Jiangsu Agricultural Sciences,2022,50(24):33-42.
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铁皮石斛酸性蔗糖转化酶基因家族鉴定及低温下表达分析(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第50卷
期数:
2022年第24期
页码:
33-42
栏目:
生物技术
出版日期:
2022-12-20

文章信息/Info

Title:
Identification of acid sucrose invertase gene family in Dendrobium catenatum Lindl. and its expression analysis under low temperature
作者:
刘博婷12唐演儿1李琳1林一帆1李学诗1于白音13刘羽佳123
1.韶关学院英东生物与农业学院,广东韶关 512005; 2.广东省粵北食药资源利用与保护重点实验室(韶关学院),广东韶关 512005;3.韶关市石斛工程技术开发中心,广东韶关 512005
Author(s):
Liu Botinget al
关键词:
铁皮石斛酸性蔗糖转化酶基因家族生物信息学表达分析冷胁迫响应
Keywords:
-
分类号:
S567.23+9.01
DOI:
-
文献标志码:
A
摘要:
为了探究DcAI家族基因的生物学特性及其在逆境响应中的潜在功能,基于已公布的铁皮石斛基因组数据,对铁皮石斛DcAI基因家族进行鉴定和生物信息学分析,并用RNA-Seq(转录组测序)技术分析其在低温胁迫下的表达模式。结果表明,DcAI基因家族共有4个成员,其中液泡蔗糖转化酶编码基因和细胞壁蔗糖转化酶编码基因各2个,在数量上与其他物种间的差异较大,存在基因丢失现象。DcAIs具有相似的内含子/外显子结构,且不均匀地分布在染色体上,其蛋白质结构高度保守,具有酸性蔗糖转化酶特有的氨基酸保守基序。DcAIs启动子含有多种顺式作用元件,涉及光响应、胁迫响应、激素响应、发育调节等多种生理生化过程;DcAIs在铁皮石斛不同组织中的表达丰度不同,具有明显的组织表达特异性;DcAIs在低温胁迫下呈现不同的表达模式,以同工酶形式在不同组织中对低温胁迫采取不同的响应机制,推测DcAIs可能通过调节自身基因的表达以提高细胞内可溶性多糖含量,从而增强铁皮石斛对低温的耐受能力。研究结果可为DcAIs基因的利用及铁皮石斛优良种质的分子遗传改良提供参考借鉴。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2022-02-16
基金项目:广东省基础与应用基础研究基金(编号:2020A1515011438);国家自然科学基金(编号:32000266);国家级大学生创新创业训练计划(编号:202110576015);广东省普通高校工程技术中心建设项目(编号:2021GCZX011);韶关市科技计划(编号:200810224537583、210731084530203);韶关学院科研重点项目(编号:SZ2019ZK04)。
作者简介:刘博婷(1981—),女,广东英德人,硕士,讲师,主要从事植物分子分析与基因改良研究。E-mail:81020325@qq.com。
通信作者:刘羽佳,博士,讲师,主要从事植物逆境生理与分子生物学研究。E-mail:liuyuj1713@dingtalk.com。
更新日期/Last Update: 2022-12-20