|本期目录/Table of Contents|

[1]李可,金辉,陈卓,等.中国南瓜MLO基因的鉴定与表达分析[J].江苏农业科学,2023,51(6):32-39.
 Li Ke,et al.Identification and description analysis of MLO family genes in pumpkin (Cucurbita moschata)[J].Jiangsu Agricultural Sciences,2023,51(6):32-39.
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中国南瓜MLO基因的鉴定与表达分析(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第51卷
期数:
2023年第6期
页码:
32-39
栏目:
生物技术
出版日期:
2023-03-20

文章信息/Info

Title:
Identification and description analysis of MLO family genes in pumpkin (Cucurbita moschata)
作者:
李可12 金辉1 陈卓1 赵明明2 胡新燕2 李卫华2 陈晓光2
1.中国热带农业科学院南亚热带作物研究所,广东湛江 524091; 2.江苏徐淮地区徐州农业科学研究所,江苏徐州221000
Author(s):
Li Keet al
关键词:
中国南瓜MLO基因生物信息学白粉病抗性
Keywords:
-
分类号:
S642.103
DOI:
-
文献标志码:
A
摘要:
MLO蛋白是植物特有的一类蛋白家族,其部分成员是植物感染白粉病的必要因子,其功能的缺失突变可诱导植物对白粉病病菌产生广谱且持久的抗性。为了揭示中国南瓜MLO基因的结构特点、系统发育关系及其功能特点,以已知的中国南瓜基因组信息为基础,采用生物信息学方法对中国南瓜的MLO基因进行鉴定分析。结果表明,中国南瓜基因组中含有20个MLO(CmoMLO)基因,分布在14条染色体上。中国南瓜CmoMLO基因大小从 2 965 bp 到9 967 bp不等,这些基因所编码的蛋白质氨基酸序列长度从324到1 264个不等。对应的等电点为6.26~963,分子权重为36 403.18~140 267.57 ku,外显子个数为6~22个。20个CmoMLO基因编码的蛋白质氨基酸序列含有2~8个不等的跨膜区。系统进化分析显示,20个中国南瓜CmoMLO蛋白被分为6个分枝,其中CmoMLO4、CmoMLO8、CmoMLO13、CmoMLO18、CmoMLO19这5个被划分到第Ⅴ分支。通过抗感材料接种后不同时期取样,分析位于第Ⅴ分枝的MLO基因的表达量差异,结果表明,CmoMLO4、CmoMLO13和CmoMLO19可能是参与白粉病病菌侵染中国南瓜的重要相关基因,且接种后24 h是MLO基因参与白粉病侵染的关键时期。本研究结果可为后期中国南瓜抗白粉病材料的创制与挖掘提供参考。
Abstract:
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相似文献/References:

[1]田永贤,陈敏,王其刚,等.植物抗白粉病MLO基因研究进展[J].江苏农业科学,2020,48(1):44.
 Tian Yongxian,et al.Research progress of MLO gene with powdery mildew resistance in plants[J].Jiangsu Agricultural Sciences,2020,48(6):44.

备注/Memo

备注/Memo:
收稿日期:2022-04-11
基金项目:海南省自然科学基金(编号:318QN283)。
作者简介:李可(1989—),女,河南中牟人,硕士,助理研究员,主要从事蔬菜遗传育种研究。E-mail:keli2009@163.com。
通信作者:金辉,博士,研究员,主要从事蔬菜遗传育种研究工作。E-mail:jh3635315@sina.com。
更新日期/Last Update: 2023-03-20