Method for gene editing in soybean by using Cas12i

Abstract

The invention provides a method for carrying out gene editing in soybean by using Cas12i, the method comprises a step of carrying out gene editing in soybean by using Cas12i and gRNA, the gRNA comprises a skeleton region combined with Cas12i and a guide series hybridized with a target sequence, and the gRNA targets a GmFAD2-1A gene and a GmFAD2-1B gene of soybean; the amino acid sequence of the Cas12i is as shown in SEQ ID No. 1, and the guide sequence, hybridized with the target sequence, in the gRNA is as shown in SEQ ID No. 2.

Description

technical field [0001] The invention belongs to the field of biotechnology, and in particular relates to a method for gene editing in soybeans, in particular to a method for using Cas12i to perform gene editing in soybeans. Background technique [0002] Soybean is the main source of oil and protein for human beings, one of the most important economic crops in the world, and the main source of human vegetable oil and vegetable protein. With the improvement of living standard and improvement of diet structure, people's demand for high-quality soybean oil is increasing day by day, and cultivating high-quality soybean has become one of the important goals of soybean breeding. [0003] The CRISPR / Cas9 system is the most commonly used type II CRISPR system, which recognizes the PAM motif of 3’-NGG and performs blunt-end cleavage of the target sequence. The site-directed editing of the target gene is achieved through the mediation of the guide RNA and the cleavage of the Cas9 prot...

AI Technical Summary

Problems solved by technology

When the inventors studied the editing activity of the enzyme in dicotyledonous plants (such as Arabidopsis, soybean, etc.), they found that the editing efficiency of the enzyme in dicotyledonous plants was low, and even some sites could not show editing activity

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