TDF1 (TRAESCS4A02G113000) — triticum aestivum

Summary

TRAESCS4A02G113000, designated TaTDF1 (also known as TaTDMYB4A061-4A, MYB80), encodes a MYB-family transcription factor on bread wheat chromosome 4A. The protein possesses Myb and SANT/Myb domains and exhibits sequence-specific DNA binding and chromatin binding activities, localizing to the nucleus. TaTDF1 is associated with anther and tapetum development, pollen development, programmed cell death, and male sterility, with male sterility directly observed for this gene in wheat. It is associated with the shikimate pathway, regulation of lignin anabolism, green leaf volatile biosynthesis, virus-induced PTGS, circadian rhythm, and wound response. Associations with agronomic traits include spikelet length, anther length, panicle length, grains per spike, plant height, harvest index, heat tolerance, drought tolerance, and chlorophyll content. Studies of related genes in other species link the family to tapetum development.