中国计量大学生命科学学院浙江省生物计量及检验检疫技术重点实验室;
目的:克隆褐飞虱钾通道蛋白KCTD3基因,并研究其序列特征和时空表达情况,以更好地了解褐飞虱KCTD3在褐飞虱生长发育中的作用,为防治褐飞虱提供理论依据。方法:通过PCR扩增褐飞虱KCTD3基因,运用生物信息学方法对褐飞虱KCTD3基因序列进行分析;之后采用荧光定量PCR(qPCR)检测KCTD3基因在褐飞虱不同生长发育时期(1~5龄若虫和1~9日龄雌成虫)和不同组织(胸部、卵巢、脂肪体、头部和肠道)中的表达情况。结果:褐飞虱KCTD3基因开放阅读框长度为2 139 bp,编码712个氨基酸残基,预测蛋白相对分子质量为78 200 u,等电点为7.6,包含有一个BTB保守结构域,无信号肽。系统进化树显示,褐飞虱KCTD3与半翅目茶翅蝽Halyomorpha halys和绿盲蝽Apolygus lucorum的KCTD3亲缘关系最近。qPCR结果显示,褐飞虱KCTD3在褐飞虱发育的所有阶段均有表达且在雌成虫中高水平表达,KCTD3在若虫时期表达量较为稳定,而在3日龄成虫中的表达量最高;组织表达分析表明,褐飞虱KCTD3在各组织中均有表达,且在卵巢中的表达量明显高于其他组织,在脂肪体中的表达量最低。结论:本研究成功克隆了褐飞虱KCTD3基因,明确了KCTD3的序列特征和时空表达模式,结果暗示KCTD3在褐飞虱的生长发育和生殖中起重要作用。
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基本信息:
DOI:
中图分类号:S435.112.3
引用信息:
[1]姬金亮,张瑞娟,李雅彬等.褐飞虱KCTD3基因克隆、序列分析及其时空表达研究[J].中国计量大学学报,2022,33(03):423-431.
基金信息:
国家自然科学基金项目(No.31871961,U21A20223,31501632);; 浙江省自然科学基金项目(No.LY22C140007);; 浙江省重点研发计划项目(No.2019C02015,2022C02047);; 浙江省属高校基本科研业务费专项资金项目(No.2020YW14)