PREPARATION METHOD FOR ANTI-PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME CLONED PIG
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United States of America Patent
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Sep 19, 2019
app pub date -
Dec 30, 2015
filing date -
Jan 8, 2015
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Abstract
The present invention provides a preparation method for an anti-porcine reproductive and respiratory syndrome cloned pig, comprising: transferring CRISPR/Cas9 targeting vectors and CD163 gene homologous recombination modification vectors into fibroblasts of a pig to obtain positive clone cells, a seventh exon of porcine endogenous CD163 gene being replaced with a eleventh exon of human CD163-L1 gene, so that the positive clone cells are incapable of mediating invasions of PRRSV; taking the positive cell as nuclear transfer donor cells and oocytes as nuclear transfer recipient cells to obtain a cloned embryo by adopting a somatic cell nuclear transfer technology; and impregenating a pig by transferring the cloned embryo into the uterus of the pig, to obtain a cloned pig.
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