Abstract Background SPATULA (SPT) and ALCATRAZ (ALC) are recent paralogs that belong to the large bHLH transcription factor family. Orthologs of these genes have been found in all core eudicots. whereas pre-duplication genes. named paleoSPATULA/ALCATRAZ. https://www.roneverhart.com/RME-Fireface-UFX-III-Audio-Interface-p32300/