Evidence map›Paper›PMID 22123974›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2011

High-efficiency homologous recombination in the oil-producing alga Nannochloropsis sp.

Oliver Kilian, Christina S E Benemann, Krishna K Niyogi, Bertrand Vick

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 119 papers.

0numbers the graph read from it
0cells of the map it votes in
119citing papers in PubMed
–field-weighted citation impact
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

119 citing papers in PubMed.

  1. Article
  2. Quantitative Evaluation of NR Locus-Targeted Nuclear Transformation inJournal of microbiology and biotechnology · 2026
    Article
  3. Article
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  6. Article
  7. Stimulating EPA Biosynthesis inJournal of microbiology and biotechnology · 2025
    Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Progress and challenges in CRISPR/Cas applications in microalgae.Journal of microbiology (Seoul, Korea) · 2025
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Marine drugs · 2024
    Review
  20. A synthetic biology approach for the treatment of pollutants with microalgae.Frontiers in bioengineering and biotechnology · 2024
    Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Oliver KilianAurora Algae, Inc, Hayward, CA 94545, USA.
Christina S E Benemann
Krishna K Niyogi
Bertrand Vick

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Algae have reemerged as potential next-generation feedstocks for biofuels, but strain improvement and progress in algal biology research have been limited by the lack of advanced molecular tools for most eukaryotic microalgae. Here we describe the development of an efficient transformation method for Nannochloropsis sp., a fast-growing, unicellular alga capable of accumulating large amounts of oil. Moreover, we provide additional evidence that Nannochloropsis is haploid, and we demonstrate that insertion of transformation constructs into the nuclear genome can occur by high-efficiency homologous recombination. As examples, we generated knockouts of the genes encoding nitrate reductase and nitrite reductase, resulting in strains that were unable to grow on nitrate and nitrate/nitrite, respectively. The application of homologous recombination in this industrially relevant alga has the potential to rapidly advance algal functional genomics and biotechnology.

Indexed as

Gene Transfer TechniquesBase SequenceBiofuelsDNA PrimersElectroporationGene Knockout TechniquesGenetic EngineeringHomologous RecombinationIndustrial MicrobiologyMicroalgaeMolecular Sequence DataNitrate ReductasesNitrite ReductasesSequence Analysis, DNAStramenopilesTransformation, GeneticBiofuelsDNA PrimersNitrate ReductasesNitrite Reductases

Identifiers

PMID22123974
PMCPMC3248512

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.