Evidence map›Paper›PMID 31776407›Full record

ArticleScientific reports2019

Palindromic sequence-targeted (PST) PCR: a rapid and efficient method for high-throughput gene characterization and genome walking.

Ruslan Kalendar, Alexandr V Shustov, Mervi M Seppänen, Alan H Schulman, Frederick L Stoddard

Abstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

20 citing papers in PubMed.

  1. Transgene Mapping in Animals: What to Choose?International journal of molecular sciences · 2025
    Review
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  3. An Assay for Variable Fragment Length Allele-Specific Genotyping.Methods in molecular biology (Clifton, N.J.) · 2025
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  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Genetic Diversity and Pathogenicity ofJournal of fungi (Basel, Switzerland) · 2021
    Article
  14. Isolation and Purification of DNA from Complicated Biological Samples.Methods in molecular biology (Clifton, N.J.) · 2021
    Article
  15. Article
  16. Article
  17. Article
  18. Simple innovative adaptor to improve genome walking with convenient PCR.Journal, genetic engineering & biotechnology · 2020
    Article
  19. Long Tandem Arrays ofInternational journal of molecular sciences · 2020
    Article
  20. Article
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

5 authors.

Ruslan KalendarDepartment of Agricultural Sciences, Viikki Plant Science Centre and Helsinki Sustainability Centre, University of Helsinki, P.O. Box 27 (Latokartanonkaari 5), FI-00014, Helsinki, Finland. ruslan.kalendar@helsinki.fi.ORCID http://orcid.org/0000-0003-3986-2460
Alexandr V ShustovNational Center for Biotechnology, Korgalzhin hwy 13/5, 010000, Astana, Kazakhstan.
Mervi M SeppänenDepartment of Agricultural Sciences, Viikki Plant Science Centre and Helsinki Sustainability Centre, University of Helsinki, P.O. Box 27 (Latokartanonkaari 5), FI-00014, Helsinki, Finland.
Alan H SchulmanInstitute of Biotechnology and Viikki Plant Science Centre, University of Helsinki, P.O. Box 65, FI-00014, Helsinki, Finland.ORCID http://orcid.org/0000-0002-4126-6177
Frederick L StoddardDepartment of Agricultural Sciences, Viikki Plant Science Centre and Helsinki Sustainability Centre, University of Helsinki, P.O. Box 27 (Latokartanonkaari 5), FI-00014, Helsinki, Finland.ORCID http://orcid.org/0000-0002-8097-5750

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Genome walking (GW) refers to the capture and sequencing of unknown regions in a long DNA molecule that are adjacent to a region with a known sequence. A novel PCR-based method, palindromic sequence-targeted PCR (PST-PCR), was developed. PST-PCR is based on a distinctive design of walking primers and special thermal cycling conditions. The walking primers (PST primers) match palindromic sequences (PST sites) that are randomly distributed in natural DNA. The PST primers have palindromic sequences at their 3'-ends. Upstream of the palindromes there is a degenerate sequence (8-12 nucleotides long); defined adapters are present at the 5'-termini. The thermal cycling profile has a linear amplification phase and an exponential amplification phase differing in annealing temperature. Changing the annealing temperature to switch the amplification phases at a defined cycle controls the balance between sensitivity and specificity. In contrast to traditional genome walking methods, PST-PCR is rapid (two to three hours to produce GW fragments) as it uses only one or two PCR rounds. Using PST-PCR, previously unknown regions (the promoter and intron 1) of the VRN1 gene of Timothy-grass (Phleum pratense L.) were captured for sequencing. In our experience, PST-PCR had higher throughput and greater convenience in comparison to other GW methods.

Indexed as

Genome, PlantInverted Repeat SequencesDNA PrimersHigh-Throughput Nucleotide SequencingIntronsPlant ProteinsPoaceaePolymerase Chain ReactionPromoter Regions, GeneticRepressor ProteinsSequence Analysis, DNATemperatureDNA PrimersPlant ProteinsRepressor Proteins

Identifiers

PMID31776407
PMCPMC6881309

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Registered trials

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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.