Fig. 6
From: The sorghum SWEET gene family: stem sucrose accumulation as revealed through transcriptome profiling
Synteny of SWEET genes between chromosome 4 of sorghum, chromosome 5 of maize, and chromosome 2 of rice. Three highly similar sorghum SWEET genes were annotated on 20.1–38.0 Mb region of chromosome 4 (SbSWEET4-1, SbSWEET4-2 and SbSWEET4-3: in red). Zea maize has three genes corresponding to SbSWEET4-1, SbSWEET4-2, and SbSWEET4-3 on chromosome 5, (GRMZM2G144581, GRMZM2G137954 and GRMZM2G000812, respectively: in blue). SbSWEET4-1 corresponds to the rice gene LOC_Os02g19820 (in blue). SbSWEET4-2 and SbSWEET4-3 were likely duplicated from SbSWEET4-1 after the divergence of sorghum and maize from rice. SbSWEET4-3 has no corresponding gene on chromosome 2 of rice. Three rice genes (in green) are annotated instead of the SWEET homologs. Numbers on map indicate locations on the chromosome (Mb megabase)