Figure 2. Detection of sgRNA:Cas9-mediated modifications of MSTN and FGF5 in lambs and tissues.
(a) Photographs of 30-day-old gene-modified lambs (Photo taken by X.W.). (b) PCR products of the targeted region of MSTN and FGF5 from founder goats co-microinjected with a mixture of Cas9 mRNA and sgRNAs. (c) Detection of sgRNA:Cas9-mediated on-target cleavage of MSTN and FGF5 by T7E1 cleavage assay. All PCR products from (b) were subjected to T7E1 cleavage assay. All the samples were digested by T7E1, suggesting that all founders carry MSTN and FGF5 mutations. (d) Sequencing results of modified MSTN and FGF5 loci detected in lambs.