萊茵衣藻PEPC基因轉(zhuǎn)化與表達(dá)分析
[Abstract]:In order to obtain stable phenotypic engineering algae and realize the strategy of genetic engineering to accelerate the development of microalgae biofuel industry, In this study, the endogenous phosphoenolpyruvate carboxylase gene was transferred to Chlamydomonas Rhine cells by homologous recombination. Based on the pHyg3 plasmid, the recombinant vectors of ppc1 and ppc2 were constructed and transformed into Chlamydomonas rhamnoides CC400 and CC406 by glass bead method. The strain was screened with hygromycin-resistant solid medium to obtain the target fragment. The results showed that the target fragment could exist stably on the genome in transformed algal cells. When the homologous fragment length is 0.5 kb, the relatively long fragment is not conducive to integration into the genome. The transformed fragment could be amplified from the genome of the transformed algae plant, indicating that the target fragment was integrated into the genome in the form of non-homologous recombination. After the transformed algal cells were subcultured for many times, the transformed foreign fragments could still be detected. This study provides an effective method for the study of transgenic engineering and homologous recombination strategy of microalgae cells.
【作者單位】: 上海海洋大學(xué)水產(chǎn)與生命學(xué)院;上海辰山植物園中國科學(xué)院上海辰山植物科學(xué)研究中心上海市資源植物功能基因組學(xué)重點(diǎn)實(shí)驗(yàn)室;
【基金】:國家自然科學(xué)基金項(xiàng)目(31201975,31172389)資助
【分類號】:Q943.2
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