ArticleScientific reports2025
Comparative plastome analysis of Schweinfurthia papilionacea and Schweinfurthia imbricata clarifying their taxonomic position in Lamiales.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 1 paper.
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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.
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Who cites it
1 citing paper in PubMed.
- Article
Corrections and comments
- Retraction · 2026-05-26Concerns/Issues about Methods · Investigation by Third Party · Objections by Author(s) · Results Not Reproducible · Unreliable Results and/or Conclusions · · See also: https://pubpeer.com/publications/C2BADA6870655E4C442CCD6EB868F9
- Retracted
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The taxonomic placement of Schweinfurthia has been debated, with traditional classifications placing it in Scrophulariaceae while molecular evidence suggests affinity to Plantaginaceae. We sequenced and analyzed complete chloroplast genomes of Schweinfurthia papilionacea ( 153,238 bp) and S. imbricata (153,206 bp) to resolve this taxonomic uncertainty. Both genomes exhibited typical quadripartite structure with large single-copy regions (LSC: 83,703 - 83,769 bp), small single-copy regions (SSC: 18,087 - 18,089 bp), and inverted repeat regions (IRa/IRb: 25,680 - 25,723 bp each). We identified 132 - 133 unique genes in each species, including 88 protein-coding genes, 36 - 37 tRNA genes, and 4 rRNA genes. Phylogenetic analysis using maximum likelihood and Bayesian inference methods with 42 taxa strongly supported (bootstrap support > 95%, posterior probability > 0.95) the placement of Schweinfurthia within Plantaginaceae, sister to the Antirrhineae tribe. Comparative genomic analysis revealed 98.7% sequence similarity between the two Schweinfurthia species and identified 10 variable sites. Codon usage analysis showed preference for A/T-ending codons (64.2% in S. papilionacea, 64.8% in S. imbricata). These comprehensive chloroplast genomic data provide definitive molecular evidence supporting the transfer of Schweinfurthia from Scrophulariaceae to Plantaginaceae, resolving a long-standing taxonomic controversy.
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