CRISPR/Cas9 System-Mediated Gene Editing in the Fujian Oysters (Crassostrea angulate) by Electroporation

The Fujian oyster (Crassostrea angulate) is an important marine bivalve mollusk with high economic value. Gene function research and gene editing techniques have broad application prospects in oyster. The clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated protein 9 (...

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Bibliographic Details
Published in:Frontiers in Marine Science
Main Authors: Kaidi Jin, Baolu Zhang, Qianqian Jin, Zhongqiang Cai, Lei Wei, Xiaomei Wang, Yanxin Zheng, Baoyu Huang, Meiwei Zhang, Yitao Qi, Yaqiong Liu, Xiaotong Wang
Format: Article in Journal/Newspaper
Language:English
Published: Frontiers Media S.A. 2021
Subjects:
CRISPR/Cas9
electroporation
Crassostrea angulate
gene editing
mollusk
Science
Q
General. Including nature conservation
geographical distribution
QH1-199.5
Pacific
Pacific oyster
Online Access:https://doi.org/10.3389/fmars.2021.763470
https://doaj.org/article/bee709975cc24123a45732e0cc303963
Description
Summary:The Fujian oyster (Crassostrea angulate) is an important marine bivalve mollusk with high economic value. Gene function research and gene editing techniques have broad application prospects in oyster. The clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated protein 9 (Cas9) system has been widely used for genome engineering in many species. CRISPR-mediated gene editing has also been used successfully in the Pacific oyster through direct delivery of the CRISPR/Cas9 components into oyster embryos by microinjection. However, the low throughput and operational difficulties associated with microinjection is one of the factors limiting the widespread application of CRISPR/Cas9 in oysters. In this study, we attempted to deliver the CRISPR/Cas9-system into the embryos of C. angulate by electroporation. An all-in-one CRISPR/Cas9 vector plasmid was used as CRISPR/Cas9 system in this study. Electroporation was carried out using both eggs and blastula larvae. A large number of larvae became malformed or die after electroporation. A single base substitution mutation was detected in the D-larvae developed from electroporated eggs. Our results demonstrate that the CRISPR/Cas9 system can be delivered into embryos of C. angulate for gene editing by electroporation, which provides a reference and will further contribute to the future application of electroporation in mollusks.

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