Walter Lab

  • Walter Lab
  • Research
    • The Unfolded Protein Response and IRE1 Signaling in Health and Disease
    • Organellar quality control, dynamics, and inheritance
    • RNA processing in the unfolded protein response
    • The integrated stress response and its role in cognition
    • ATF6-branch signaling through regulated proteolysis
  • Lab Members
    • Current
    • Alumni
  • Contact Us
  • Social
  • Publications
  • News & Notes

Systematic characterization of gene function in a photosynthetic organism

Vilarrasa-Blasi J, Fauser F, Onishi M, Ramundo S, Patena W, Millican M, Osaki J, Philp C, Nemeth M, Salomé PA, Li X, Wakao S, Kim RG, Kaye Y, Grossman AR, Niyogi KK, Merchant S, Cutler S, Walter P, Dinneny JR, Jonikas MC, Jinkerson RE. Systematic characterization of gene function in a photosynthetic organism. bioRxiv - preprint doi: https://doi.org/10.1101/2020.12.11.420950, 2020
( PMID : not available ) (PDF)

Abstract

Photosynthetic organisms are essential for human life, yet most of their genes remain functionally uncharacterized. Single-celled photosynthetic model systems have the potential to accelerate our ability to connect genes to functions. Here, using a barcoded mutant library of the model eukaryotic alga Chlamydomonas reinhardtii, we determined the phenotypes of more than 58,000 mutants under more than 121 different environmental growth conditions and chemical treatments. 78% of genes are represented by at least one mutant that showed a phenotype, providing clues to the functions of thousands of genes. Mutant phenotypic profiles allow us to place known and previously uncharacterized genes into functional pathways such as DNA repair, photosynthesis, the CO2-concentrating mechanism, and ciliogenesis. We illustrate the value of this resource by validating novel phenotypes and gene functions, including the discovery of three novel components of a defense pathway that counteracts actin cytoskeleton inhibitors released by other organisms. The data also inform phenotype discovery in land plants: mutants in Arabidopsis thaliana genes exhibit similar phenotypes to those we observed in their Chlamydomonas homologs. We anticipate that this resource will guide the functional characterization of genes across the tree of life.


Deprecated: genesis_footer_creds_text is deprecated since version 3.1.0! Use genesis_pre_get_option_footer_text instead. This filter is no longer supported. You can now modify your footer text using the Theme Settings. in /nas/content/live/wlabdemo/wp-includes/functions.php on line 5698

Copyright © 2022  Walter Lab | University of California, San Francisco | Howard Hughes Medical Institute