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Position: Home > Articles > Selection of reference genes in Phenacoccus solenopsis( Hemiptera:Pseudococcidae) under heat stress Acta Entomologica Sinica 2014,57 (10) 1146-1154

热胁迫下棉花粉蚧内参基因的筛选

作  者:
陈芳;陆永跃
单  位:
华南农业大学昆虫学系
关键词:
棉花粉蚧;温度;热胁迫;内参基因;表达稳定性;实时荧光定量PCR
摘  要:
【目的】筛选出热胁迫下棉花粉蚧Phenacoccus solenopsis的实时定量PCR最适内参基因。【方法】本研究应用实时荧光定量PCR技术测定了棉花粉蚧2龄若虫、3龄若虫和雌成虫α-tub,β-tub,rpl32,GAPDH,SDHA和TBP共6个候选内参基因在7个不同温度处理(恒温18℃和32℃,以及37℃,39℃,41℃,43℃和45℃热激处理1 h并在26℃恢复1 h)下mRNA表达水平的稳定性;应用ge Norm,Bestkeeper,Normfinder和Ref Finder软件分析6个基因表达的稳定性。【结果】在不同高温胁迫下2龄若虫6个候选内参基因的稳定值M由小到大依次为α-tub(0.579)
译  名:
Selection of reference genes in Phenacoccus solenopsis( Hemiptera:Pseudococcidae) under heat stress
作  者:
CHEN Fang;LU Yong-Yue;Department of Entomology, South China Agricultural University;
关键词:
Phenacoccus solenopsis;;temperature;;heat stress;;reference genes;;expression stability;;real-time fluorescence quantitative PCR(RT-q PCR)
摘  要:
【Aim 】 To select the suitable reference genes in Phenacoccus solenopsis after exposure to different temperature stress by using quantitative real-time PCR( RT-q PCR). 【Methods】In this study,we investigated the mRNA expression stability of six candidate reference genes( α-tub,GAPDH,rpl32,β-tub,SDHA and TBP) in different developmental stages( 2nd instar nymph,3rd instar nymph and female adult) of P. solenopsis under seven different temperature regimes( constant temperature 18℃ and32℃,and temporary heat shock( 1 h) at 37℃,39℃,41℃,43℃ and 45℃ and then recovery at 26℃for 1 h) by RT-q PCR method. Three software-based approaches( ge Norm,Bestkeeper and Normfinder)and one web-based comprehensive tool( Ref Finder) were used to analyze and rank the tested genes,and evaluate the expression stability of these genes. 【Results】In the 2nd instar nymphs,the M values of six reference genes stability in the ascending order were α-tub( 0. 579) < GAPDH( 0. 654) < TBP( 0. 663)< β-tub( 0. 668) < rpl32( 0. 675) < SDHA( 0. 755),and the SD values were TBP( 0. 31) < α-tub( 0. 37) < rpl32( 0. 38) < SDHA( 0. 52) < β-tub( 0. 53) < GAPDH( 0. 57). In the 3rd instar nymphs,the M values in the ascending order were α-tub( 0. 542) < β-tub( 0. 596) < TBP( 0. 618) < GAPDH( 0. 655) < SDHA( 0. 668) < rpl32( 0. 749),while the SD values were α-tub( 0. 29) < β-tub( 0. 40)

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