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Genotoxicity evaluation of low doses of avermectin to hemocytes of silkworm (Bombyx mori) and response of gene expression to DNA damage

文献类型： 外文期刊

作者： Shen, WeiFeng 1 ; Zhao, XuePing 3 ; Wang, Qiang 3 ; Niu, BaoLong 2 ; Liu, Yan 2 ; He, LiHua 2 ; Weng, HongBiao 2 ; Meng, 1 ;

作者机构： 1.Zhejiang Univ, Coll Anim Sci, Hangzhou 310029, Zhejiang, Peoples R China

2.Zhejiang Acad Agr Sci, Sericultural Res Inst, Hangzhou 310021, Zhejiang, Peoples R China

3.Zhejiang Acad Agr Sci, Inst Qual & Stand Agroprod, Hangzhou 310021, Zhejiang, Peoples R China

关键词： Silkworm;Avermectin;DNA damage;Differentially expressed gene;Alkaline single-cell gel electrophoresis;Annealing control primer-based PCR

期刊名称：PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY （ 影响因子：3.963； 五年影响因子：4.454 ）

ISSN： 0048-3575

年卷期： 2011 年 101 卷 3 期

页码：

收录情况： SCI

摘要： DNA damage caused by low dosage of avermectin was evaluated in hemocytes of silkworm (Bombyx mod) using the alkaline single-cell gel electrophoresis (SCGE). The fourth instar larvae of silkworm were exposed to avermectin by oral feeding with mulberry leaves treated on the three different concentrations. The hemocytes were collected at day 1, 3, 5, 7, 9 for assessment of DNA damage with tail DNA percent. Results showed that there was positive correlation between avermectin concentration and DNA damage in three tested treatments. The maximum value of tail DNA percent was observed at the third day, followed by a gradual non-linear decline. For better understanding the results of SCGE at transcription level, differentially expressed genes (DEGs) were explored in hemocytes of silkworm exposed to avermectin (1.0 mu g/1) using annealing control primer (ACP)-based PCR. 15 DEGs were screened and sequenced, among which 10 genes were up-regulated, 5 genes were down-regulated. These genes were related with DNA damage or DNA damage repair of hemocytes. (C) 2011 Elsevier Inc. All rights reserved.

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