Bioinformatics Analysis of the Glutamate-Gated Chloride Channel Family in Bursaphelenchus xylophilus

Glutamate-gated chloride channels (GluCls), a class of ion channels found in the nerve and muscle cells of invertebrates, are involved in vital life processes. <i>Bursaphelenchus xylophilus</i>, the pathogen of pine wilt disease, has induced major economic and ecological losses in invaded areas of Asia and Europe. We identified 33 GluCls family members by sequence alignment analysis. A subsequent bioinformatic analysis revealed the physicochemical properties, protein structure, and gene expression patterns in different developmental stages. The results showed that <i>GluCls</i> genes are distributed across all six chromosomes of <i>B. xylophilus</i>. These proteins indicated a relatively conserved structure by NCBI-conserved domains and InterPro analysis. A gene structure analysis revealed that <i>GluCls</i> genes consist of 5 to 14 exons. Expression pattern analysis revealed <i>BxGluCls</i> were extensively involved in the development of second instar larvae of <i>B. xylophilus</i>. Furthermore, <i>BxGluCls</i>15, <i>BxGluCls</i>25, and <i>BxGluCls</i>28 were mainly associated with the development of eggs of <i>B. xylophilus</i>. <i>BxGluCls</i>12, <i>BxGluCls</i>18, and <i>BxGluCls</i>32 were predominantly linked to nematode resistance and adaptation. Investigation the structure and expression patterns of BxGluCls is crucial to understand the developmental trends of <i>B. xylophilus</i>. It also helps identify molecular targets for the development of biopesticides or drugs designed to control this nematode.