# Phylogenetic insights derived from six Xanthomonas draft genome sequences associated with bacterial spot disease of tomato and pepper in Turkey

**Authors:** Amandeep Kaur, Jeffrey B. Jones, Erica M. Goss, Yesim Aysan, Marcus M. Dillon

PMC · DOI: 10.1099/acmi.0.001144.v3 · Access Microbiology · 2026-02-27

## TL;DR

This paper reports on six Xanthomonas strains causing bacterial spot disease in Turkey and uses genome data to understand their phylogenetic relationships and genetic diversity.

## Contribution

The study provides new genomic insights into Xanthomonas strains in Turkey and their classification into species.

## Key findings

- Three strains were identified as Xanthomonas perforans, two as Xanthomonas euvesicatoria, and one as Xanthomonas campestris.
- Phylogenomic analysis and type III secreted effector content were characterized for these strains.
- The data offer insights into the genetic diversity and epidemiology of bacterial spot disease in Turkey.

## Abstract

Xanthomonas spp. are increasingly recognized as a global threat to agriculture, impacting a broad range of economically important crops. We report the whole-genome sequences of six Xanthomonas strains isolated from tomato and pepper plants in Turkey that were experiencing symptoms of bacterial spot disease. Phylogenomic analysis with representative Xanthomonas genomes from each species revealed that three of these strains belonged to Xanthomonas perforans, two to Xanthomonas euvesicatoria and one to Xanthomonas campestris. We then analysed the phylogenomic relatedness of these strains with other strains from these respective species and characterized their type III secreted effector content. These genomic data represent a valuable resource for understanding the genetic diversity and local epidemiology of bacterial spot disease in Turkey.

## Linked entities

- **Species:** Xanthomonas perforans (taxon 442694), Xanthomonas euvesicatoria (taxon 456327), Xanthomonas campestris (taxon 339)

## Full-text entities

- **Diseases:** Bacterial (MESH:D001424), brussels (MESH:C537121), Bacterial spot (MESH:D008796), black rot (MESH:D005535)
- **Chemicals:** glycerol (MESH:D005990), King (-), DMSO (MESH:D004121), ethanol (MESH:D000431), copper (MESH:D003300)
- **Species:** Stenotrophomonas maltophilia (species) [taxon 40324], Xanthomonas campestris pv. campestris (no rank) [taxon 340], Arabidopsis thaliana (mouse-ear cress, species) [taxon 3702], Solanum lycopersicum (tomato, species) [taxon 4081], Brassica oleracea var. botrytis (cauliflower, varietas) [taxon 3715], Xanthomonas campestris pv. raphani (no rank) [taxon 359385], Brassica oleracea var. italica (asparagus broccoli, varietas) [taxon 36774], Xanthomonas vesicatoria (species) [taxon 56460], Xanthomonas perforans (species) [taxon 442694], Saccharomyces cerevisiae (baker's yeast, species) [taxon 4932], Xanthomonas campestris (species) [taxon 339], Brassica oleracea (wild cabbage, species) [taxon 3712], Xanthomonas euvesicatoria (species) [taxon 456327], Meleagris gallopavo (common turkey, species) [taxon 9103]
- **Cell lines:** CFBP 9145 — Homo sapiens (Human), Fragile X syndrome, Transformed cell line (CVCL_AY27), KB — Mus musculus (Mouse), Hybridoma (CVCL_U609), ATCC 13637 — Homo sapiens (Human), Primary lateral sclerosis, Transformed cell line (CVCL_IK13)

## Full text

_Full body text omitted from this summary view._ Fetch the complete paper as Markdown: https://tomesphere.com/paper/PMC12948316/full.md

## Figures

3 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12948316/full.md

## References

36 references — full list in the complete paper: https://tomesphere.com/paper/PMC12948316/full.md

---
Source: https://tomesphere.com/paper/PMC12948316