Arogundade Olawale, Oladokun John O, Kumar P Lava, Alabi Olufemi J
National Horticultural Research Institute, Jericho Reservation Area, Idi-Ishin, Ibadan, Oyo State, Nigeria.
Department of Crop Protection and Environmental Biology, University of Ibadan, Oduduwa Road, Ibadan, Oyo State, Nigeria.
Arch Virol. 2025 Aug 25;170(9):198. doi: 10.1007/s00705-025-06390-7.
An isolate of a novel begomovirus, named eggplant yellow mosaic virus (EYMV), was molecularly characterized from a naturally infected, field-collected eggplant exhibiting yellow mosaic symptom in Iguowan, Edo State, Nigeria. Its complete monopartite genome is 2,805 nucleotides (nt) long, containing two virion-sense (V1 and V2) and four complementary-sense (C1-C4) open reading frames. In pairwise comparisons, EYMV shared the highest (86%) genome sequence identity with tomato leaf curl Cameroon virus isolate GH-Tou-12. Phylogenetic analysis showed that EYMV belonged to the same clade as okra yellow crinkle virus (OYCrV). Further analysis revealed the recombinant nature of EYMV, with the potential major and minor parental viruses being OYCrV and tomato leaf curl Nigeria virus, respectively. The species name "Begomovirus melongenaflavi" is proposed for EYMV.
从尼日利亚江户州伊瓜万一块自然感染且表现出黄色花叶症状的田间采集茄子中，分离出一种新型双生病毒，命名为茄子黄花叶病毒（EYMV），并对其进行了分子特征分析。其完整的单分体基因组长度为2805个核苷酸（nt），包含两个病毒链（V1和V2）开放阅读框以及四个互补链（C1 - C4）开放阅读框。在成对比较中，EYMV与番茄卷叶喀麦隆病毒分离株GH - Tou - 12的基因组序列同一性最高（86%）。系统发育分析表明，EYMV与秋葵黄皱病毒（OYCrV）属于同一进化枝。进一步分析揭示了EYMV的重组性质，其潜在的主要和次要亲本病毒分别为OYCrV和番茄卷叶尼日利亚病毒。现提议将EYMV的种名定为“Begomovirus melongenaflavi”。
