The invention discloses a method for obtaining sheep with different
hair colors on the basis of
CRISPR / Cas9 and sgRNA of a targeted ASIP
gene. The invention provides sgRNA (ASIP-sgRNA) capable of achieving specific and
targeted modification of a sheep ASIP
gene, and the sgRNA (ASIP-sgRNA) is
RNA as shown from the third
nucleotide to the 22<nd>
nucleotide of 5'
tail end of a sequence 4 of a sequence
list or
RNA with the nucleotides from the third
nucleotide to the 22<nd> nucleotide of the 5'
tail end of the sequence 4 of the sequence
list. The ASIP-sgRNA particularly can be the
RNA as shown in the sequence 4 of the sequence
list. The invention further provides a method for obtaining sheep with changed
hair colors. The method comprises the following steps that co-
transfection of sgRNA capable of achieving specific and
targeted modification of the sheep ASIP
gene and Cas9mRNA on sheep cells is conducted, and therefore the sheep ASIP gene is deleted, and the sheep with the changed
hair colors are obtained. According to the method for obtaining the sheep with different hair colors on the basis of
CRISPR / Cas9 and sgRNA of the targeted ASIP gene, a
CRISPR / Cas9
genome-editing technology is combined with a
microinjection technology, and an effective technological means is provided for artificially changing the hair colors of the sheep.