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Custom Genome-wide CRISPR Libraries in Precision Animal Breeding

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Genome-wide CRISPR library is a high-throughput gene screening method established based on CRISPR technology. It involves functional screening, enrichment, and deep sequencing analysis to identify genes associated with a specific phenotype. BioVenic customizes genome-wide CRISPR libraries for precision breeding of farmed animals, providing large-scale screening tools for molecular breeding and promoting the feasibility of efficient and multi-dimensional screening. Our services range from high-throughput sgRNA library construction to virus packaging, cell transfection, high-throughput sequencing, and data analysis, catering to various scientific research needs.

Comparison of Genome-wide CRISPR Libraries

According to specific research needs, we offer customize services for genome-wide CRISPR libraries.

Libraries Application Mechanism Features
CRISPR-KO Library
  • Effectively distinguish genome-wide essential genes from non-essential genes.
Non-homologous end joining (NHEJ) repairs DNA double-strand breaks and introduces frameshift mutations in order to achieve knockout.
  • False negatives in positive selection screens can result when a gene is required for survival at a certain level but exhibits a partially suppressed phenotype.
  • Toxicity from cutting.
CRISPRa Library
  • Gain-of-function screens for coding genes.
  • Regulatory function screens for non-coding regions.
dCas9 is co-expressed with transcriptional activators to effectively increase the expression level of the entire gene.
  • Effectively reveal the functions of low-level expressed genes and the pathways of gene activation regulation.
  • False negatives may occur when the target gene is not efficiently overexpressed or when multiple genes are upregulated on bidirectional promoters.
CRISPRi Library
  • Loss-of-function screens for coding genes.
  • Regulatory function screens for non-coding regions.
dCas9, a transcriptional repressor, was co-transfected into cells with gRNA targeting the upstream regulatory region of the gene in order to achieve gene knockdown.
  • Effectively distinguish genome-wide essential genes from non-essential genes.
  • Offers the possibility to titrate the amount of gene expression.

Service Details of Custom Genome-wide CRISPR Libraries

  • Library Design and Production

BioVenic adopts an advanced high-throughput gRNA automated design system to initially design all potential gRNAs and subsequent gRNA screening using a combination of chip-based high-throughput quantitative synthesis and PCR amplification. Our services include assembly of the sgRNA pool into the knockout tool plasmid vector. We perform NGS detection on the vector library, and ultimately accomplishe the construction of the overall library. We customize and construct a high-quality and high-fitness whole-genome library for you.

BioVenic offers a systematic series of services for the preparation and delivery of viral vectors for animal genome editing. We can provide a comprehensive range of customized recombinant viruses, including adenoviruses, adeno-associated viruses, and lentiviruses. BioVenic utilizes a third-generation packaging system and refines it with the optimal particle ratio. For the construction of the entire genome of farmed animals and other genome editing operations, it has high levels of safety, titer, and quality.

  • Functional Verification of Screened Genetic Samples

BioVenic offers analysis and verification services for screening data from whole-genome libraries. Using CRISPR technology, a single gene knockout project is conducted on the candidate targets obtained through screening to verify the gene function and minimize the interference of false positive results on the overall research progress.

Fig.1 CRISPR gRNA Customization Process (BioVenic Authorized)

Why Choose Us?

Applications of LAMP and RT-LAMP in Veterinary Diagnostics

Focus on the construction of genome-wide libraries of farmed animals to fill the market gap.

Applications of LAMP and RT-LAMP in Veterinary Diagnostics

High editing efficiency CRISPR library reduces the difficulty of screening and overall research costs.

Applications of LAMP and RT-LAMP in Veterinary Diagnostics

Strict QC of delivery results through accuracy, coverage and uniformity.

Applications of LAMP and RT-LAMP in Veterinary Diagnostics

Professional data analysis and result verification are carried out for the screening results.

BioVenic specializes in customizing genome-wide CRISPR libraries for precision breeding research in livestock, poultry, aquaculture species, and other animals. The libraries assist us in comprehending the molecular mechanisms linked to significant traits, including growth and production, reproduction, disease resistance, and overall health. If you are conducting research on precision animal breeding and have related needs, please contact us to learn more about customizing genome-wide libraries.

Reference

  1. Sanson, Kendall R., et al. "Optimized libraries for CRISPR-Cas9 genetic screens with multiple modalities." Nature communications 9.1 (2018): 5416.
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