Title: An Indexed, Mapped Mutant Library Enables Reverse Genetics Studies of Biological Processes in Chlamydomonas reinhardtii

Journal Article · · The Plant Cell
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [2];  [2];  [2];  [2];  [2]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4];  [2]; ORCiD logo [2]
  1. Carnegie Inst. for Science, Stanford, CA (United States). Dept. of Plant Biology; US Dept. of Energy, Office of Scientific and Technical Information (OSTI)
  2. Carnegie Inst. for Science, Stanford, CA (United States). Dept. of Plant Biology
  3. Univ. of Minnesota, Minneapolis, MN (United States). Dept. of Plant Biology
  4. Univ. of California, Los Angeles, CA (United States). Dept. of Chemistry and Biochemistry

The green alga Chlamydomonas reinhardtii is a leading unicellular model for dissecting biological processes in photosynthetic eukaryotes. However, its usefulness has been limited by difficulties in obtaining mutants in specific genes of interest. To allow generation of large numbers of mapped mutants, we developed high-throughput methods that (1) enable easy maintenance of tens of thousands of Chlamydomonas strains by propagation on agar media and by cryogenic storage, (2) identify mutagenic insertion sites and physical coordinates in these collections, and (3) validate the insertion sites in pools of mutants by obtaining >500 bp of flanking genomic sequences. We used these approaches to construct a stably maintained library of 1935 mapped mutants, representing disruptions in 1562 genes. We further characterized randomly selected mutants and found that 33 out of 44 insertion sites (75%) could be confirmed by PCR, and 17 out of 23 mutants (74%) contained a single insertion. To demonstrate the power of this library for elucidating biological processes, we analyzed the lipid content of mutants disrupted in genes encoding proteins of the algal lipid droplet proteome. This study revealed a central role of the long-chain acyl-CoA synthetase LCS2 in the production of triacylglycerol from de novo-synthesized fatty acids.

Research Organization:
Carnegie Inst. for Science, Stanford, CA (United States); Univ. of California, Los Angeles, CA (United States); Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Organization:
National Inst. of Health (NIH) (United States); National Science Foundation (NSF) (United States); USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Grant/Contract Number:
FC02-02ER63421
OSTI ID:
1418625
Journal Information:
The Plant Cell, Journal Name: The Plant Cell Journal Issue: 2 Vol. 28; ISSN 1040-4651
Publisher:
American Society of Plant BiologistsCopyright Statement
Country of Publication:
United States
Language:
English

References (2)


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Ciliary proteins Fap43 and Fap44 interact with each other and are essential for proper cilia and flagella beating journal April 2018
Identification of Chlamydomonas Central Core Centriolar Proteins Reveals a Role for Human WDR90 in Ciliogenesis journal August 2017
The photosystem I assembly apparatus consisting of Ycf3–Y3IP1 and Ycf4 modules journal June 2018
Deletion of BSG1 in Chlamydomonas reinhardtii leads to abnormal starch granule size and morphology journal February 2019
Early Evolution of the Mitogen-Activated Protein Kinase Family in the Plant Kingdom journal March 2019
Whole Genome Re-Sequencing Identifies a Quantitative Trait Locus Repressing Carbon Reserve Accumulation during Optimal Growth in Chlamydomonas reinhardtii journal May 2016
Thylakoid localized bestrophin-like proteins are essential for the CO 2 concentrating mechanism of Chlamydomonas reinhardtii journal August 2019
Proteome of the central apparatus of a ciliary axoneme journal May 2019
A Review of Living Collections with Special Emphasis on Sustainability and Its Impact on Research Across Multiple Disciplines journal February 2017
RABL2 interacts with the intraflagellar transport-B complex and CEP19 and participates in ciliary assembly journal June 2017
PACRG and FAP20 form the inner junction of axonemal doublet microtubules and regulate ciliary motility journal July 2019
FAP57/WDR65 targets assembly of a subset of inner arm dyneins and connects to regulatory hubs in cilia journal October 2019
Characterization of the transient fluorescence wave phenomenon that occurs during H2 production in Chlamydomonas reinhardtii journal August 2019
Lipid remodeling regulator 1 ( LRL 1) is differently involved in the phosphorus‐depletion response from PSR 1 in Chlamydomonas reinhardtii journal August 2019
Building a multipurpose insertional mutant library for forward and reverse genetics in Chlamydomonas journal May 2017
Characterization of Fatty Acid EXporters involved in fatty acid transport for oil accumulation in the green alga Chlamydomonas reinhardtii journal January 2019
Nitrogen-dependent coordination of cell cycle, quiescence and TAG accumulation in Chlamydomonas journal December 2019
Engineering photosynthesis: progress and perspectives journal January 2017
The dynamin-like protein Fzl promotes thylakoid fusion and resistance to light stress in Chlamydomonas reinhardtii journal March 2019
Chlamydomonas FAP265 is a tubulin polymerization promoting protein, essential for flagellar reassembly and hatching of daughter cells from the sporangium journal September 2017
Overcoming adversity through diversity: aquatic carbon concentrating mechanisms. journalarticle January 2017
Genetic Engineering: A Promising Tool to Engender Physiological, Biochemical, and Molecular Stress Resilience in Green Microalgae journal March 2016
Engineering the Chloroplast Genome of Oleaginous Marine Microalga Nannochloropsis oceanica journal April 2018
Marine and Freshwater Plants: Challenges and Expectations journal November 2019
Good News for Nuclear Transgene Expression in Chlamydomonas journal November 2019
The Potential for Microalgae as Bioreactors to Produce Pharmaceuticals journal June 2016
Identification of Reference and Biomarker Proteins in Chlamydomonas reinhardtii Cultured under Different Stress Conditions journal August 2017
Efficient Editing of the Nuclear APT Reporter Gene in Chlamydomonas reinhardtii via Expression of a CRISPR-Cas9 Module journal March 2019
Data from: An indexed, mapped mutant library enables reverse genetics studies of biological processes in Chlamydomonas reinhardtii dataset January 2016
Additional file 10 of Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study dataset January 2020
Additional file 11 of Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study dataset January 2020
Additional file 12 of Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study dataset January 2020
Additional file 13 of Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study dataset January 2020
Additional file 14 of Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study dataset January 2020
Additional file 15 of Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study dataset January 2020
Additional file 16 of Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study dataset January 2020
Additional file 17 of Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study dataset January 2020
Additional file 2 of Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study dataset January 2020
Additional file 4 of Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study dataset January 2020
Additional file 5 of Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study dataset January 2020
Additional file 6 of Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study dataset January 2020
Additional file 7 of Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study dataset January 2020
Additional file 8 of Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study dataset January 2020
Additional file 9 of Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study dataset January 2020
A bioactive peptide amidating enzyme is required for ciliogenesis journal May 2017
From molecular manipulation of domesticated Chlamydomonas reinhardtii to survival in nature journal November 2018
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Characterization of the GPR1/FUN34/YaaH protein family in the green microalga Chlamydomonas suggests their role as intracellular membrane acetate channels journal June 2019
Ciliary proteins Fap43 and Fap44 interact with each other and are essential for proper cilia and flagella beating journal April 2018
Advanced genetic tools enable synthetic biology in the oleaginous microalgae Nannochloropsis sp. journal March 2018
The photosystem I assembly apparatus consisting of Ycf3–Y3IP1 and Ycf4 modules journal June 2018
The cryo-EM structure of intraflagellar transport trains reveals how dynein is inactivated to ensure unidirectional anterograde movement in cilia journal October 2018
A genome-wide algal mutant library and functional screen identifies genes required for eukaryotic photosynthesis journal March 2019
Thermotaxis in Chlamydomonas is brought about by membrane excitation and controlled by redox conditions journal October 2018
Deletion of BSG1 in Chlamydomonas reinhardtii leads to abnormal starch granule size and morphology journal February 2019
Early Evolution of the Mitogen-Activated Protein Kinase Family in the Plant Kingdom journal March 2019
Skeletonema marinoi as a new genetic model for marine chain-forming diatoms journal April 2019
UV-B photoreceptor-mediated protection of the photosynthetic machinery in Chlamydomonas reinhardtii journal December 2016
Structure of a PSI–LHCI–cyt b 6 f supercomplex in Chlamydomonas reinhardtii promoting cyclic electron flow under anaerobic conditions journal September 2018
Intraflagellar transport protein RABL5/IFT22 recruits the BBSome to the basal body through the GTPase ARL6/BBS3 journal January 2020
Thylakoid localized bestrophin-like proteins are essential for the CO 2 concentrating mechanism of Chlamydomonas reinhardtii journal August 2019
Scaffold subunits support associated subunit assembly in the Chlamydomonas ciliary nexin–dynein regulatory complex journal October 2019
Algal photosynthesis converts nitric oxide into nitrous oxide journal January 2020
The labile interactions of cyclic electron flow effector proteins journal September 2018
Ten antenna proteins are associated with the core in the supramolecular organization of the photosystem I supercomplex in Chlamydomonas reinhardtii journal January 2019
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Structural organization of the C1a-e-c supercomplex within the ciliary central apparatus journal October 2019
FAP57/WDR65 targets assembly of a subset of inner arm dyneins and connects to regulatory hubs in cilia journal October 2019
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The algal pyrenoid: key unanswered questions journal May 2017
Characterization of the transient fluorescence wave phenomenon that occurs during H2 production in Chlamydomonas reinhardtii journal August 2019
Molecular Genetic Tools and Emerging Synthetic Biology Strategies to Increase Cellular Oil Content in Chlamydomonas reinhardtii journal January 2019
LIP4 Is Involved in Triacylglycerol Degradation in Chlamydomonas reinhardtii journal February 2019
Identifying RNA splicing factors using IFT genes in Chlamydomonas reinhardtii journal March 2018
Quantification of guanosine tetraphosphate and other nucleotides in plants and algae using stable isotope-labelled internal standards posted_content January 2020
A genome-wide algal mutant library reveals a global view of genes required for eukaryotic photosynthesis posted_content November 2018
Scaffold subunits support associated subunit assembly in the Chlamydomonas ciliary nexin-dynein regulatory complex posted_content June 2019
FAP57/WDR65 targets assembly of a subset of inner arm dyneins and connects to regulatory hubs in cilia posted_content July 2019
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Structural organization of the C1a-e-c supercomplex within the ciliary central apparatus posted_content September 2019
Novel insights into N-glycan fucosylation and core xylosylation in C. reinhardtii posted_content September 2019
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The Chlamydomonas CO 2 -concentrating mechanism and its potential for engineering photosynthesis in plants journal August 2017
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Hunting the main player enabling Chlamydomonas reinhardtii growth under fluctuating light journal April 2018
A giant type I polyketide synthase participates in zygospore maturation in Chlamydomonas reinhardtii journal June 2018
Lipid remodeling regulator 1 ( LRL 1) is differently involved in the phosphorus‐depletion response from PSR 1 in Chlamydomonas reinhardtii journal August 2019
TALE homeobox heterodimer GSM 1/ GSP 1 is a molecular switch that prevents unwarranted genetic recombination in Chlamydomonas journal September 2019
Multiple xylosyltransferases heterogeneously xylosylate protein N ‐linked glycans in Chlamydomonas reinhardtii journal January 2020
A robust protocol for efficient generation, and genomic characterization of insertional mutants of Chlamydomonas reinhardtii journal April 2017
Building a multipurpose insertional mutant library for forward and reverse genetics in Chlamydomonas journal May 2017
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Time-resolved transcriptome analysis and lipid pathway reconstruction of the oleaginous green microalga Monoraphidium neglectum reveal a model for triacylglycerol and lipid hyperaccumulation journal August 2017
Characterization of Fatty Acid EXporters involved in fatty acid transport for oil accumulation in the green alga Chlamydomonas reinhardtii journal January 2019
Nitrogen-dependent coordination of cell cycle, quiescence and TAG accumulation in Chlamydomonas journal December 2019
Novel insights into salinity-induced lipogenesis and carotenogenesis in the oleaginous astaxanthin-producing alga Chromochloris zofingiensis: a multi-omics study journal April 2020
The Chlamydomonas flagellar membrane glycoprotein FMG-1B is necessary for expression of force at the flagellar surface journal August 2019
Engineering photosynthesis: progress and perspectives journal January 2017
The dynamin-like protein Fzl promotes thylakoid fusion and resistance to light stress in Chlamydomonas reinhardtii journal March 2019
Identification and Characterization of a cis -Regulatory Element for Zygotic Gene Expression in Chlamydomonas reinhardtii journal March 2016
The algal pyrenoid: key unanswered questions. text January 2017
Identification and mapping of central pair proteins by proteomic analysis journal January 2020
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Genetic Engineering: A Promising Tool to Engender Physiological, Biochemical, and Molecular Stress Resilience in Green Microalgae journal March 2016
Engineering the Chloroplast Genome of Oleaginous Marine Microalga Nannochloropsis oceanica journal April 2018
Absolute Quantification of Major Photosynthetic Protein Complexes in Chlamydomonas reinhardtii Using Quantification Concatamers (QconCATs) journal August 2018
Novel Insights Into N-Glycan Fucosylation and Core Xylosylation in C. reinhardtii journal January 2020
Good News for Nuclear Transgene Expression in Chlamydomonas journal November 2019
The Potential for Microalgae as Bioreactors to Produce Pharmaceuticals journal June 2016
Efficient Editing of the Nuclear APT Reporter Gene in Chlamydomonas reinhardtii via Expression of a CRISPR-Cas9 Module journal March 2019
Novel approaches for generating and manipulating diploid strains of Chlamydomonas reinhardtii journal March 2019
Data from: An indexed, mapped mutant library enables reverse genetics studies of biological processes in Chlamydomonas reinhardtii dataset January 2016
A bioactive peptide amidating enzyme is required for ciliogenesis journal May 2017
From molecular manipulation of domesticated Chlamydomonas reinhardtii to survival in nature journal November 2018
The Mars1 kinase confers photoprotection through signaling in the chloroplast unfolded protein response journal October 2019