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Systematic identification and characterization of genes in the regulation and biogenesis of photosynthetic machinery
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Abstract
Photosynthesis is central to food production and the Earth's biogeochemistry, yet the molecular basis for its regulation remains poorly understood. Here, using high-throughput genetics in the model eukaryotic alga Chlamydomonas reinhardtii , we identify with high confidence (false discovery rate [FDR] < 0.11) 70 poorly characterized genes required for photosynthesis. We then enable the functional characterization of these genes by providing a resource of proteomes of mutant strains, each lacking one of these genes. The data allow assignment of 34 genes to the biogenesis or regulation of one or more specific photosynthetic complexes. Further analysis uncovers biogenesis/regulatory roles for at least seven proteins, including five photosystem I mRNA maturation factors, the chloroplast translation factor MTF1, and the master regulator PMR1, which regulates chloroplast genes via nuclear-expressed factors. Our work provides a rich resource identifying regulatory and functional genes and placing them into pathways, thereby opening the door to a system-level understanding of photosynthesis.
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Metadata
- Authors
- Kafri, M., Patena, W., Martin, L., Wang, L., Gomer, G., Ergun, S. L., Sirkejyan, A. K., Goh, A., Wilson, A. T., Gavrilenko, S. E., Breker, M., Roichman, A., McWhite, C. D., Rabinowitz, J. D., Cross, F. R., Wühr, M., & Jonikas, M. C.
- Affiliations
- Princeton University (US)
- Howard Hughes Medical Institute (US)
- Rockefeller University (US)
- Corresponding author
- Jonikas, Martin C.
- ORCID
- Venue
- Cell
- Publisher
- Elsevier BV
- Published
- 2023-12
- Volume
- 186
- Issue
- 25
- Pages
- 5638-5655.e25
- ISSN
- 0092-8674 (ISSN-L)
- PMC
- PMC10760936
- OpenAlex
- W4389427712
- Cited by
- 33
- References
- 3
- Citations by year
- 2026: 9 · 2025: 14 · 2024: 10
- FWCI
- 2.94
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Cell (publishedVersion, cc-by)
- bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion, cc-by)
- Funders
- Princeton University
- Simons Foundation (55108535)
- Human Frontier Science Program
- National Institutes of Health (R35GM128813)
- European Molecular Biology Organization (ALTF 1006-2017)
- Howard Hughes Medical Institute
- National Science Foundation (MCB-1914989)
- Horowitz Foundation for Social Policy
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Photosynthetic Processes and Mechanisms
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Light effects on plants
- Keywords
- photosynthesis, photosynthesis regulation, Chlamydomonas reinhardtii, gene identification, MTF-1, PMR1, photosynthetic complexes
- MeSH terms
- Chloroplasts, Gene Expression Regulation, Mutation, Photosynthesis, Proteins, Ribosomes, RNA, Messenger, Chlamydomonas reinhardtii
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