کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4419511 1618941 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Epigenetic alterations and decreasing insecticide sensitivity of the Asian tiger mosquito Aedes albopictus
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Epigenetic alterations and decreasing insecticide sensitivity of the Asian tiger mosquito Aedes albopictus
چکیده انگلیسی


• There is a low level of global DNA methylation in the Asian tiger mosquito Aedes albopictus.
• Genistein and vinclozolin induce alterations of global DNA methylation levels in A. albopictus.
• Epigenetic changes in A. albopictus correlate with reduced insecticide sensitivity until F2.

A range of environmental factors, including chemicals, can affect epigenetic processes in organisms leading to variations in phenotype. Thus, epigenetics displays an important environmentally responsive element. The transgenerational impact of environmental stressors on DNA methylation and phenotype was the focus of this study.The influence of two known DNA methylation-changing agents, the phytoestrogen genistein and the fungicide vinclozolin, on the overall DNA methylation level in the Asian tiger mosquito Aedes albopictus was investigated. The experiment comprised four generations in a full life-cycle design with an exposed parental generation and three consecutive non-exposed offspring generations.Application of the methylation agents to the parental generation of the study led to an alteration of the global DNA methylation level of the exposed individuals and those in two subsequent generations. The phenotypic variability of the offspring generations was assessed by examining their insecticide sensitivity. Here, a significant decrease in sensitivity (p<0.01) towards the model insecticide imidacloprid revealed alterations of the mosquito's phenotype in two subsequent generations.Thus, the evaluation of A. albopictus from an epigenetic perspective can contribute important information to the study of the high adaptability of this invasive disease vector to new environments, and its underlying mechanisms.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecotoxicology and Environmental Safety - Volume 122, December 2015, Pages 45–53
نویسندگان
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