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Silkworm eggs: An ideal model for studying the biological effects of low energy Ar~+ ion interaction in animals

机译:蚕卵:研究动物中低能Ar〜+离子相互作用的生物学效应的理想模型

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The object of the current work was to study low energy Ar~+ ion beam interactions with silkworm eggs and thus provide further understanding of the mechanisms involved in ion bombardment-induced direct gene transfer into silkworm eggs. In this paper, using low-energy Ar~+ ion beam bombardment combined with piggyBac transposon, we developed a novel method to induce gene transfer in silkworm. Using bombardment conditions optimized for egg-incubation (25 keV with ion fluences of 800×2.6×10~(15) ions/ cm~2 in dry state under vacuum), vector pBac{3×P3-EGFPaf} and helper plasmid pHA3pig were successfully transferred into the silkworm eggs. Our results obtained from by PCR assay and genomic Southern blotting analysis of the Gl generations provide evidence that low-energy ion beam can generate some craters that play a role in acting as pathways of exogenous DNA molecules into silkworm eggs.
机译:当前工作的目的是研究低能Ar〜+离子束与蚕卵的相互作用,从而进一步了解离子轰击诱导的基因直接转移到蚕卵中的机制。本文利用低能Ar〜+离子轰击结合piggyBac转座子,开发了一种诱导家蚕基因转移的新方法。使用针对鸡蛋孵化优化的轰击条件(真空条件下在干燥状态下为25 keV,离子通量为800×2.6×10〜(15)离子/ cm〜2的离子通量),载体pBac {3×P3-EGFPaf}和辅助质粒pHA3pig成功地将蚕卵调入。我们通过G1代的PCR测定和基因组Southern印迹分析获得的结果提供了证据,表明低能离子束可以产生一些弹坑,这些弹坑充当外源DNA分子进入蚕卵的途径。

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