Highly divergent isolates of two carlaviruses infecting chrysanthemum in Russia

Chrysanthemum is a popular ornamental and medicinal plant, suffering from many viruses and viroids. Among them, chrysanthemum virus B (CVB, genus Carlavirus, family Betaflexiviridae) is widespread in all chrysanthemum-growing regions. Another carlavirus, chrysanthemum virus R (CVR), has been recently discovered in China. Objective of this work was to study on the prevalence and genetic diversity of CVB and CVR in Russia.

菊花（Chrysanthemum）是广受欢迎的观赏与药用植物，可被多种病毒及类病毒侵染。其中，菊花B病毒（chrysanthemum virus B, CVB）隶属于香石竹潜隐病毒属（Carlavirus）、β柔形病毒科（Betaflexiviridae），在所有菊花种植产区均广泛分布。另一种隶属于香石竹潜隐病毒属的病毒——菊花R病毒（chrysanthemum virus R, CVR）近期在中国境内被发现。本研究旨在探究俄罗斯境内CVB与CVR的流行情况及遗传多样性。