CD Biosynsis offers a comprehensive suite of Chlamydomonas reinhardtii Genome Editing Services, empowering researchers to manipulate the genetics of this premier model photosynthetic organism with unprecedented precision. Known as the "green yeast," Chlamydomonas reinhardtii is essential for studying photosynthesis, flagellar biology, and lipid metabolism. Our platform is specifically engineered to overcome the unique challenges of the algal genome, such as its high GC-content and robust gene silencing mechanisms. By utilizing DNA-free Ribonucleoprotein (RNP) delivery and optimized algal vectors, we provide reliable solutions for gene functional analysis and the development of high-performance algal strains for biofuel and recombinant protein production.
Get a QuoteModern algal biotechnology requires precise genomic control to redirect metabolic flux and improve photosynthetic efficiency. Our Chlamydomonas editing platform integrates multiple CRISPR-based modalities to address diverse research needs. From complete gene disruption to subtle single-nucleotide tuning, we ensure high on-target efficiency and minimal off-target effects. Whether your project focuses on nuclear genome engineering or specialized chloroplast modifications, our integrated workflow provides the genetic stability and phenotypic consistency required for reproducible scientific discovery.
Optimized CRISPR-Cas9 and Cas12a platforms utilizing RNP delivery to bypass gene silencing and achieve high-efficiency nuclear or chloroplast editing.
Permanent disruption of target genes via NHEJ-mediated indels or large fragment deletions to study essential photosynthetic and flagellar functions.
Site-specific integration of reporters, affinity tags, or metabolic cassettes into validated safe harbor loci for stable transgene expression.
Tunable and reversible transcriptional silencing (knockdown) ideal for studying essential genes and balancing metabolic pathways.
DSB-free single-nucleotide conversion (C>T or A>G) for precise protein engineering and herbicide resistance modeling.
Our systematic pipeline is designed to handle the 64% GC-bias of the algal genome and ensure monoclonal purity.
1. Computational Design
2. Tool Preparation & Transformation
3. Selection & Screening
4. Validation & Characterization
Selection of target loci and gRNA design optimized for high GC-content. Sequence optimization for transgenes to match the algal codon bias.
Synthesis of gRNAs and assembly of RNP complexes. Transformation via electroporation or biolistic delivery.
Genotype: Definitive verification of the edit via Sanger or Next-Generation Sequencing (NGS).
Phenotype: Functional analysis including chlorophyll fluorescence, lipid profiling, or flagellar motility assays.
Delivery: Provision of verified algal strains and comprehensive project reports.
DNA-Free RNP Platform
Utilizing pre-assembled Cas9-gRNA complexes to prevent transgene silencing and minimize off-target integration events common in Chlamydomonas.
GC-Rich Expertise
Advanced bioinformatic tools and nuclease variants specifically selected for the unique high-GC environment of the algal nucleus.
Stable Monoclonality
Rigorous selective plating and HTS screening ensure that all delivered strains are monoclonal and genetically stable across generations.
Compartment Targeting
Strategic engineering options for both the nuclear and chloroplast genomes, allowing for optimal pathway localization and PTM control.
1. Why is Chlamydomonas editing considered more difficult than other model organisms?
Challenges include its high GC-content (64%), which limits gRNA selection, and a very efficient DNA silencing mechanism that often turns off integrated Cas9 genes. We overcome these by using RNPs and optimized codon bias.
2. What is the advantage of Base Editing for algal research?
Base Editing allows for single-nucleotide changes without causing double-strand breaks. This is ideal for studying amino acid residues in photosynthetic proteins or creating herbicide resistance markers without the risk of random indels.
3. Can you perform multiplex editing in a single project?
Yes, we can deliver multiple gRNAs simultaneously to target redundant gene families or multiple enzymes within a single metabolic pathway, such as lipid or starch synthesis.
4. How is homoplasmy achieved in chloroplast editing?
Since Chlamydomonas has a single large chloroplast with many genome copies, we perform several rounds of selective plating to ensure that all copies of the chloroplast genome contain the desired edit.
5. What transformation methods do you use?
We primarily use optimized electroporation for RNP delivery into the nucleus and biolistic micro-projectile bombardment (Gene Gun) for chloroplast transformation.
6. Do you provide help with phenotype analysis?
Yes, we offer comprehensive characterization services including GC-MS for lipid profiling, HPLC for pigments, and PAM fluorometry for measuring photosynthetic efficiency.
7. Is it possible to study essential genes with CRISPR?
Absolutely. We recommend using CRISPRi for essential genes. This allows for tunable repression (knockdown) rather than complete disruption (knockout), allowing the cell to survive for phenotypic study.
8. What is the typical turnaround time for a knockout strain?
A standard Chlamydomonas knockout project typically takes between 12 to 16 weeks, including gRNA validation, transformation, and thorough genomic verification.
CRISPR-Cas9 technology represents a transformative advancement in gene editing techniques. The main function of the system is to precisely cut DNA sequences by combining guide RNA (gRNA) with the Cas9 protein. This technology became a mainstream genome editing tool quickly after its 2012 introduction because of its efficient, simple and low-cost nature.
The CRISPR gene editing system with its Cas9 version stands as a vital instrument for current biological research. CRISPR technology enables gene knockout (KO) through permanent gene expression blockage achieved by sequence disruption. Various scientific domains including disease modeling and drug screening employ this technology to study gene functions. CRISPR KO technology demonstrates high efficiency and precision but requires confirmation and verification post-implementation because unsatisfactory editing may produce off-target effects or incomplete gene knockouts which impact experimental result reliability. For precise and efficient Gene Editing Services - CD Biosynsis, Biosynsis offers comprehensive solutions tailored to your research needs.
The CRISPR-Cas9 knockout cell line was developed using CRISPR/Cas9 gene editing to allow scientists to remove genes accurately for research on gene function and disease models and pharmaceutical discovery. Genetic research considers this technology essential due to its high efficiency together with simple operation and broad usability.
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CD Biosynsis is a leading customer-focused biotechnology company dedicated to providing high-quality products, comprehensive service packages, and tailored solutions to support and facilitate the applications of synthetic biology in a wide range of areas.