Department of Biological Sciences and Biotechnology, Botswana International University of Science and Technology, Private Bag 16, Palapye, Botswana.
, Im Spargelfeld 1, 38162, Cremlingen, Germany.
Arch Virol. 2022 Jan;167(1):21-30. doi: 10.1007/s00705-021-05288-4. Epub 2021 Nov 2.
Chickpea chlorotic stunt virus (CpCSV, genus Polerovirus, family Solemoviridae), first reported in Ethiopia in 2006, causes an economically important yellowing and stunting disease in legume crops such as chickpea, faba bean, field pea, and lentil in most production areas of North Africa and Central and West Asia. Disease epidemics have been reported in Ethiopia, Syria, and Tunisia. The virus is transmitted persistently by aphids of the species Aphis craccivora and Acyrthosiphon pisum and naturally infects several legume and non-legume hosts. CpCSV exists as at least two geographic strain groups that differ in their genome sequence and serological and biological properties. In addition, a genetically divergent isolate proposed to be a member of a distinct polerovirus species has been reported from pea and faba bean in China. The ssRNA genome of the Ethiopian isolate has 5900 nucleotides, is encapsidated in isometric particles of ~ 28 nm diameter, and is suggested to have evolved by recombination of cucurbit aphid-borne yellows virus- and soybean dwarf virus-like parents. Moreover, a number of newly reported poleroviruses are suggested to have evolved by recombination between CpCSV and other parental poleroviruses. Identification of sources of resistance and further knowledge on disease epidemiology, including specific strains, vectors, and alternate hosts in different growing areas, are required for devising effective disease management strategies. Modern biotechnology tools such as next-generation sequencing, molecular markers, and agroinoculation-based resistance screening techniques can expedite future research and management efforts. This review addresses various aspects of CpCSV, including its properties, ecology, the disease it causes, management options, and future research perspectives.
菜豆黄花叶病毒（CpCSV，属 Polerovirus 科，Solemoviridae 科）于 2006 年首次在埃塞俄比亚报道，导致豆类作物（如鹰嘴豆、蚕豆、田豌豆和小扁豆）在北非和中西亚大部分生产地区的一种经济上重要的黄化和矮化病。该病在埃塞俄比亚、叙利亚和突尼斯均有报道。该病毒由 Aphis craccivora 和 Acyrthosiphon pisum 蚜虫持续传播，并自然感染几种豆科和非豆科宿主。CpCSV 至少存在两个地理株系群，它们在基因组序列、血清学和生物学特性上存在差异。此外，从中国豌豆和蚕豆中分离出一种遗传上不同的分离物，据报道它是一种独特的极细病毒种的成员。埃塞俄比亚分离物的 ssRNA 基因组有 5900 个核苷酸，被~28nm 直径的等面体颗粒包裹，推测是由葫芦科蚜虫传播的黄花叶病毒和大豆矮化病毒类似亲本重组进化而来。此外，许多新报道的极细病毒被认为是由 CpCSV 和其他亲本极细病毒之间的重组进化而来。确定抗性来源以及进一步了解疾病流行病学，包括不同种植区的特定菌株、载体和替代宿主，对于制定有效的疾病管理策略是必要的。现代生物技术工具，如下一代测序、分子标记和基于农杆菌接种的抗性筛选技术，可以加速未来的研究和管理工作。本文综述了 CpCSV 的各个方面，包括其特性、生态学、引起的疾病、管理选择和未来的研究展望。
