Figure 1.

Genome structure of ACMV-[CM], a typical bipartite cassava geminivirus. Genome is split into two components termed DNA-A (left) and DNA-B (right). DNA-A comprises six open reading frames (ORFs), and each ORF encodes a specific protein. AC1, Replication-associated protein (Rep); AC2, transcriptional activator protein (TrAP); AC3, replication enhancer protein (REn); AC4, RNA-silencing suppressor; AV1, coat protein (CP); AV2, precoat. DNA-B has two ORFs; BV1 encodes nuclear-shuttle protein (NSP), and BC1 encodes movement protein (MP). V, Virion-sense ORFs; C, complementary-sense ORFs.