TPP1 — Sorghum bicolor

Summary

SORBI_3002G303900, symbol TPP1, encodes a trehalose 6-phosphate phosphatase (EC 3.1.3.12), placing it in the trehalose-phosphatase family with a HAD-like superfamily domain. This sorghum gene on chromosome 2 is directly annotated to trehalose biosynthesis, regulation of secondary shoot formation, and responses to cold and salinity stress. It is also associated with glutathione, sucrose, phenylpropanoid, and lignin metabolism, as well as general homeostasis and signal transduction. TPP1 is linked to the trait SALTTL, indicating a connection to salt tolerance. Studies of related genes in other species further connect this family to stress responses and developmental processes, though these associations are not yet established in sorghum itself.