論文 - 詳細
| RRC ID | 74139 |
|---|---|
| 著者 | Ito K, Sivaprasad V, Katsuma S, Yokoyama T, Kadono-Okuda K. |
| タイトル | Resistance mechanism of Nid-1, a dominant non-susceptibility gene, against Bombyx mori densovirus 1 infection. |
| ジャーナル | Virus Res |
| Abstract |
Bombyx mori densovirus 1 (BmDV1) is a pathogen that causes flacherie disease in mulberry silkworms (B. mori). The absolute resistance (non-susceptibility) to BmDV1 of certain silkworm strains is determined independently by two genes, nsd-1 and Nid-1. Previously, we investigated the expression of viral transcript in virus-inoculated silkworms carrying different nsd-1 and Nid-1 genotypes, and observed that nsd-1 and Nid-1 expression blocked the early and late steps of BmDV1 infection, respectively. In addition, we found that nsd-1 encoded a Bombyx-specific mucin-like membrane protein only present on the surface of the midgut, where BmDV1 could infect. In this study, we dissected the resistance mechanism by Nid-1 against BmDV1 infection by investigating the sequential changes in the accumulation of viral DNA, transcripts, and proteins derived from BmDV1 in susceptible strain (pxj) and Nid-1-carrying resistant strain (No. 908) after inoculation with BmDV1. Genomic PCR results showed that the BmDV1 DNA was detected immediately after the infection in both strains but rapidly decreased in the Nid-1-carrying strain No. 908 compared with the susceptible strain pxj. RT-PCR results also showed that the BmDV1 transcripts of Nid-1-carrying strain No. 908 were rapidly decreased after the infection. Moreover, BmDV1-derived proteins were not detected in No. 908 throughout the infection. These results suggest that Nid-1 expression might inhibit the accumulation of viral DNA and transcripts. As Nid-1 has not been molecularly characterized, its identification will contribute to the elucidation of the interactions between the silkworm and BmDV1. |
| 巻・号 | 318 |
| ページ | 198849 |
| 公開日 | 2022-9-1 |
| DOI | 10.1016/j.virusres.2022.198849 |
| PII | S0168-1702(22)00177-0 |
| PMID | 35691422 |
| MeSH | Animals Bombyx* DNA, Viral / metabolism Densovirus* / genetics Insect Viruses* / genetics |
| IF | 2.934 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
|
| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 3 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| カイコ | p50 |