Transcriptome profiling of Sorghum bicolor reveals cultivar-specific molecular signatures associated with starch and phenolic compounds biosyntheses and accumulation during sorghum grain development

Sorghum is an important crop, and starch phenolic compounds are major components in the sorghum grain. However, underlying critical genetic elements contributing to rich portfolio of nutrients grains largely unknown. Transcriptomic methods were employed characterize expression patterns at five different grain developmental stages Hongyingzi (an brewing sorghum), another two sorghums, Jinuoliang 1 Hongliangfeng 1, for comparison. The uniquely expressed genes identified each stage when compared with other cultivars. co-regulated regulatory network determined; determinant single-nucleotide polymorphisms located promoters these involved biosynthetic pathways also identified. These results will provide insights into potential further contribute clarification key biosyntheses compounds. Meanwhile, some new transcripts of three Our work can impetus study responsible biosynthesis grain, pave a way functional validation batch proposed current work.