Genome organization of the bipartite (A) and monopartite (B) members of the genus Begomovirus, alphasatellites (C) and betasatellites (D).
Arrows represent open reading frames. V1/(AV1) coat protein gene, V2/AV2 precoat prorein gene, C1 (AC1) replication initiator protein gene, C2 (AC2) transcription activator protein gene, C3 (AC3) replication enhancer protein gene, C4 (AC4) symptom determinant protein gene, BV1 nuclear shuttle protein gene, and BC1 movement protein gene. A-rich: adenosine-rich region of the genome; βC1: the gene encoding the betaC1 protein; SCR: satellite-conserved region. Imagines are not to the scale.