Abutilon yellows virus (AbYV (sometimes AYB) is a virus of the genus Crinivirus. Particle lengths were measured at 800-850 nm. Partial sequencing has taken place but full sequencing was not complete as of 2008. Criniviruses are considered a threat to crops, though less so than viruses the other whitefly transmitted virus genus Begomovirus, which are predominant in both number and effect.