Evidence map›Paper›PMID 19805272›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2009

Tracking the roots of cellulase hyperproduction by the fungus Trichoderma reesei using massively parallel DNA sequencing.

Stéphane Le Crom, Wendy Schackwitz, Len Pennacchio, Jon K Magnuson, David E Culley, James R Collett, Joel Martin, Irina S Druzhinina, Hugues Mathis, Frédéric Monot and 7 more

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed
10.5field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

88 citing papers in PubMed, 216 citations in OpenAlex.

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  9. Promoters and Synthetic Promoters in Trichoderma reesei.Methods in molecular biology (Clifton, N.J.) · 2024
    Article
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  15. The F-box protein geneProceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  16. Article
  17. Genetic Transformation of Trichoderma spp.Methods in molecular biology (Clifton, N.J.) · 2021
    Article
  18. Article
  19. Engineering ofBiotechnology for biofuels · 2020
    Article
  20. Article

28 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors at 6 institutions in 3 countries.

Stéphane Le CromInstitut National de la Santé et de la Recherche Médicale, U784, 46 rue d'Ulm, 75230 Paris Cedex 05, France.
Wendy Schackwitz
Len Pennacchio
Jon K Magnuson
David E Culley
James R Collett
Joel Martin
Irina S Druzhinina
Hugues Mathis
Frédéric Monot
Bernhard Seiboth
Barbara Cherry
Michael Rey
Randy Berka
Christian P Kubicek
Scott E Baker
Antoine Margeot
Joint Genome Institute · USIFP Énergies nouvelles · FRNovozymes (United States) · USPacific Northwest National Laboratory · USTU Wien · ATÉcole Normale Supérieure - PSL · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Trichoderma reesei (teleomorph Hypocrea jecorina) is the main industrial source of cellulases and hemicellulases harnessed for the hydrolysis of biomass to simple sugars, which can then be converted to biofuels such as ethanol and other chemicals. The highly productive strains in use today were generated by classical mutagenesis. To learn how cellulase production was improved by these techniques, we performed massively parallel sequencing to identify mutations in the genomes of two hyperproducing strains (NG14, and its direct improved descendant, RUT C30). We detected a surprisingly high number of mutagenic events: 223 single nucleotides variants, 15 small deletions or insertions, and 18 larger deletions, leading to the loss of more than 100 kb of genomic DNA. From these events, we report previously undocumented non-synonymous mutations in 43 genes that are mainly involved in nuclear transport, mRNA stability, transcription, secretion/vacuolar targeting, and metabolism. This homogeneity of functional categories suggests that multiple changes are necessary to improve cellulase production and not simply a few clear-cut mutagenic events. Phenotype microarrays show that some of these mutations result in strong changes in the carbon assimilation pattern of the two mutants with respect to the wild-type strain QM6a. Our analysis provides genome-wide insights into the changes induced by classical mutagenesis in a filamentous fungus and suggests areas for the generation of enhanced T. reesei strains for industrial applications such as biofuel production.

Indexed as

Base CompositionCellulaseDNA, FungalFungal ProteinsGenes, FungalGenome, FungalMutationPolymorphism, Single NucleotideSequence Analysis, DNASpecies SpecificityTrichodermaCellulaseDNA, FungalFungal Proteins

Identifiers

PMID19805272
PMCPMC2752593
OpenAlexW2127297472

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.