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February 9, 2026InsectsOpen Access

Genome-Wide Identification and Comparative Characterization of Chemosensory Gene Families in Two Phthorimaea Pests

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Authors

WHWangtao HuInstitute of Plant ProtectionRCRui ChenSouth China Agricultural UniversityQSQi SuYangtze University

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Implication

Comparative analysis identifies olfactory gene families in Phthorimaea pests, suggesting pathways for pest management.

Key Points

  • This study aims to elucidate olfactory molecular mechanisms in two pests, P. operculella and P. absoluta.
  • Identified OBPs, CSPs, and SNMPs from the genomes of P. operculella and P. absoluta.
  • Utilized RNA sequencing to analyze tissue expression profiles in P. operculella across developmental stages and adult organs.
  • Performed DESeq2 analysis to assess sexual dimorphism in expression of chemosensory genes.
  • Identified 47 OBPs, 26 CSPs, and 2 SNMPs in P. operculella; 39 OBPs, 24 CSPs, and 2 SNMPs in P. absoluta.
  • Revealed 24 OBPs and 4 CSPs with significant sexual dimorphism in P. operculella's antennae.
  • Three OBPs and one CSP were enriched in the female ovipositor; six OBPs and five CSPs were enriched in male genitalia.

Cite This Study

Hu et al. (2026) studied this question.

synapsesocial.com/papers/698979c8f0ec2af6756e7b3ehttps://doi.org/10.3390/insects17020178
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