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A new capulavirus infecting sugar beet (Beta vulgaris L.) in France

文献类型： 外文期刊

作者： Zhang, Zhixiang 1 ; Faure, Chantal 1 ; Marais, Armelle 1 ; Monteiro, Amelie 2 ; Candresse, Thierry 1 ;

作者机构： 1.Univ Bordeaux, INRAE, UMR Biol Fruit & Pathol 1332, CS20032, F-33882 Villenave Dornon, France

2.Inst Tech Betterave, 45 Rue Naples, F-75008 Paris, France

3.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China

4.UNILET, 45 Ave Paul Claudel, F-80480 Dury, France

期刊名称：ARCHIVES OF VIROLOGY （ 影响因子：2.5； 五年影响因子：2.2 ）

ISSN： 0304-8608

年卷期： 2025 年 170 卷 2 期

页码：

收录情况： SCI

摘要： A novel capulavirus was identified by high-throughput sequencing in four sugar beet (Beta vulgaris L.) plants collected in April 2023 in Normandy (France). The complete genome of 2744 nucleotides (nt) was sequenced and found to have an organization similar to that of known capulaviruses, with which it showed close phylogenetic relationships. In addition, data mining of a publicly available Thalictrum thalictroides whole-genome shotgun sequence assembly allowed the identification of a contig (JABWDY010003008.1) representing a longer-than-unit length, likely episomal, genome with 99.4% nt sequence identity to the genome of the French beet isolate. The genome of the novel virus shares only 60.7-66.9% nt sequence identity with known capulaviruses, which is well below the species demarcation threshold of 78%, suggesting that a new species should be created to accommodate it. The common name "beet capulavirus 1" (BCV1) is proposed for this novel virus. Given that BCV1 was identified in plants that were coinfected with beet yellows virus, no conclusions can be drawn at this stage about its potential pathogenicity.

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