Evidence map›Paper›PMID 40855264›Full record

ArticleBMC plant biology2025

Benchmarking of low coverage sequencing workflows for precision genotyping in eggplant.

Virginia Baraja-Fonseca, Andrea Arrones, Santiago Vilanova, Mariola Plazas, Jaime Prohens, Aureliano Bombarely, Pietro Gramazio

Abstract read
In one paragraph

Article in BMC plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Water stress tolerance, genomic selection and identification of genomic regions in a MAGIC population of eggplant.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026
    Article
  4. Review
  5. Article
  6. Article
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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

7 authors.

Virginia Baraja-FonsecaInstituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Camino de Vera 14, Valencia, 46022, Spain. vbarfon@posgrado.upv.es.
Andrea ArronesInstituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Camino de Vera 14, Valencia, 46022, Spain.
Santiago VilanovaInstituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Camino de Vera 14, Valencia, 46022, Spain.
Mariola PlazasInstituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Camino de Vera 14, Valencia, 46022, Spain.
Jaime ProhensInstituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Camino de Vera 14, Valencia, 46022, Spain.
Aureliano BombarelyInstituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas - Universitat Politècnica de València, Camino de Vera 14, Valencia, 46022, Spain.
Pietro GramazioInstituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Camino de Vera 14, Valencia, 46022, Spain. piegra@upv.es.

Funding

MICIU/AEI/10.13039/ 501100011033 and European Union RYC2021-031999-I
6 · The paper itself

Abstract

backgroundLow-coverage whole-genome sequencing (lcWGS) presents a cost-effective solution for genotyping, particularly in applications requiring high marker density and reduced costs. In this study, we evaluated lcWGS for eggplant genotyping using eight founder accessions from the first eggplant MAGIC population (MEGGIC). We tested various sequencing coverages and minimum depth of coverage thresholds with two SNP callers, Freebayes and GATK. Reference SNP panels were used to estimate the percentage of common biallelic SNPs (i.e., true positives) relative to the low coverage datasets (accuracy) and the SNP panels themselves (sensitivity). Furthermore, the percentage of true positives with the same genotype across both datasets was calculated to assess genotypic concordance.

resultsSequencing coverages as low as 1X and 2X achieved high accuracy but lacked sufficient sensitivity and genotypic concordance. However, 3X sequencing reached approximately 10% less sensitivity than 5X while maintaining genotypic concordance above 90% at any depth of coverage threshold. Freebayes outperformed GATK in terms of sensitivity and genotypic concordance. Therefore, we used this software to conduct a pilot test with some MEGGIC lines from the fifth generation of selfing, comparing their datasets with a gold standard. Sequencing coverages as low as 1X identified a substantial number of true positives, with 3X significantly increasing the yield, particularly at moderate depth of coverage thresholds. Additionally, at least 30% of the true positives were consistently genotyped in all lines when using coverages greater than 2X, regardless of the depth of coverage threshold applied.

conclusionsThis study highlights the importance of using a gold standard to reduce false positives and demonstrates that lcWGS, with proper filtering, is a valuable alternative to high-coverage sequencing for eggplant genotyping, with potential applications to other crops.

Indexed as

Genotyping TechniquesSolanum melongenaWhole Genome SequencingBenchmarkingGenome, PlantGenotypeHigh-Throughput Nucleotide SequencingPolymorphism, Single NucleotideWorkflowBenchmarking analysisBioinformatic pipelineEggplant (Solanum melongena)GenotypingGold standard (GS)Low-coverage whole-genome sequencing (lcWGS)

Identifiers

PMID40855264
PMCPMC12379343

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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 Socratic graph.