Genome-wide identification of the NAC gene family in taro and functional analysis of CeNAC48 in starch biosynthesis.

CeNAC48 negatively regulates starch biosynthesis in taro, with overexpression reducing starch content by up to 50%.

• Why it matters: Understanding the genetic regulation of starch accumulation in taro is crucial for improving crop yield and quality, addressing food security and agricultural sustainability.
• What they did: Researchers identified 83 NAC genes in taro through genome-wide analysis, and used transcriptomics, qRT-PCR, and functional assays to investigate CeNAC48’s role in starch regulation.
• The result: CeNAC48 directly represses CeAGPS1 and activates CeBAM, leading to decreased starch synthesis, and offers a promising molecular target for genetic enhancement of taro and related crops.