INRAE, UR1321 ASTRO Agrosystèmes tropicaux, 97170, Petit-Bourg, Guadeloupe, France.
CIRAD, UMR PHIM, 34090, Montpellier, France.
Arch Virol. 2022 Mar;167(3):917-922. doi: 10.1007/s00705-022-05379-w. Epub 2022 Feb 2.
Dioscorea mosaic associated virus (DMaV) is a member of the genus Sadwavirus, family Secoviridae, that is associated with mosaic symptoms in Dioscorea rotundata in Brazil. The genome of a DMaV isolate detected in D. trifida in Guadeloupe was sequenced by high-throughput sequencing. Using an RT-PCR-based detection assay, we found that DMaV infects D. alata, D. bulbifera, D. cayenensis-rotundata, D. esculenta, and D. trifida accessions conserved in Guadeloupe and Côte d'Ivoire and displays a very high level of molecular diversity in a relatively small region of the genome targeted by the assay. We also provide evidence that DMaV is also present in D. rotundata in Benin and in D. alata in Nigeria.
盾叶薯蓣关联病毒（DMaV）是 Sadwavirus 属、正呼肠孤病毒科的成员，与巴西盾叶薯蓣的花叶症状有关。在瓜德罗普岛的三角叶薯蓣中检测到的 DMaV 分离株的基因组通过高通量测序进行了测序。使用基于 RT-PCR 的检测方法，我们发现 DMaV 感染了在瓜德罗普岛和科特迪瓦保存的盾叶薯蓣、盾叶薯蓣、盾叶薯蓣-圆叶、盾叶薯蓣和三角叶薯蓣，并在检测方法靶向的基因组的相对较小区域显示出非常高的分子多样性。我们还提供了证据表明，DMaV 也存在于贝宁的盾叶薯蓣和尼日利亚的盾叶薯蓣中。
