Evidence map›Paper›PMID 41013178›Full record

ArticleBMC genomics2025

Genomic analyses of Purpureocillium lilacinum reveal unique DNA regions for developing isolate-specific molecular markers.

Zhi-Yu Yeh, Kusum Mushyakhwo, Nian-Tong Ni, Pei-Hsin Lo, Chuen-Fu Lin, Yu-Shin Nai

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Article in BMC genomics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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6 authors.

Zhi-Yu Yeh *Department of Entomology, National Chung Hsing University, Taichung, 40227, Taiwan.
Kusum Mushyakhwo *International Doctoral Program in Agriculture, National Chung Hsing University, Taichung, 40227, Taiwan.
Nian-Tong NiDepartment of Entomology, National Chung Hsing University, Taichung, 40227, Taiwan.
Pei-Hsin LoTaichung District Agricultural Research and Extension Station, Ministry of Agriculture, Changhua, 515008, Taiwan.
Chuen-Fu LinDepartment of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science & Technology, Pingtung, 912, Taiwan. cflin2283@mail.npust.edu.tw.
Yu-Shin NaiDepartment of Entomology, National Chung Hsing University, Taichung, 40227, Taiwan. ysnai@nchu.edu.tw.

Funding

National Science and Technology Council 113-2313-B-005-024-MY3National Science and Technology Council 113-2327-B-020-001
6 · The paper itself

Abstract

backgroundThe Purpureocillium lilacinum NCHU-NPUST-175 (Pl-NCHU-NPUST-175) strain has been previously reported as an entomopathogenic fungus (EPF) with potential for controlling Forcipomyia taiwana (little black mosquito). In this study, genome sequencing of Pl-NCHU-NPUST-175 was performed via long-read sequencing (Oxford Nanopore Technologies, ONT). The comparative genomic analysis was conducted to identify isolate- and species-specific DNA regions for developing markers for rapid molecular identification, in order to detect the fungus in an environment and to confirm species identity before practical field applications.

resultsThe genome assembly of Pl-NCHU-NPUST-175 is 36.55 Mb, consisting of 13 contigs with a GC content of 58.64%. The largest contig of the Pl-NCHU-NPUST-175 genome was 6.79 Mb, and the N50 value was 4.08 Mb. The genome contains 14,069 putative protein-coding genes, with a gene density of 384.90 genes per Mb and a median number of three exons per gene. Additionally, one mitogenome, Pl-NCHU-NPUST-175, was assembled with a size of 0.23 Mb and contained 16 protein-coding genes. In the Pl-NCHU-NPUST-175 genome, repeat regions accounted for 3.70% of the genome. Most repetitive sequences exhibit a nucleotide sequence divergence of less than 30%. Phylogenetic analysis revealed that Pl-NCHU-NPUST-175 is most closely related to other P. lilacinum strains. To identify distinctive genomic regions (DGRs), a comparative genomics analysis was conducted between Pl-NCHU-NPUST-175, P. takamizusanense and P. lilacinum. A total of 1,154 unaligned fragments were identified by genome-wide alignment, ten DGRs were randomly selected for specific primer design, and the specificity of the primer sets was tested. The results showed that all primer sets could serve as specific molecular markers for Pl-NCHU-NPUST-175. Among the ten primer sets, three primer sets were selected for the soil-sample detection test. The qualitative PCR results indicate that all three isolate-specific primer sets (pl_1, pl_8, and pl_10) detected 10

conclusionsThe genome sequence of Pl-NCHU-NPUST-175 was decoded and compared with those of closely related isolates and species. Based on a developed comparative genomics approach, we highlight the feasibility of developing specific molecular markers of EPF, and this method could be further applied to commercialize EPF products to address sustainability in the natural environment.

Indexed as

DNA, FungalGenome, FungalGenomicsHypocrealesBase CompositionGenetic MarkersPhylogenySequence Analysis, DNASpecies SpecificityDNA, FungalGenetic MarkersComparative genomicsDistinctive genomic regions (DGRs)Molecular markersOxford Nanopore Technologies (ONT)Purpureocillium lilacinum

Identifiers

PMID41013178
PMCPMC12465793

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