TY - RPRT TI - Phenylpropanoid Biosynthesis Gene Expression Precedes Lignin Accumulation During Shoot Development in Lowland and Upland Switchgrass Genotypes AU - Saha, Prasenjit AU - Lin, Fan AU - Thibivilliers, Sandra AU - Xiong, Yi AU - Pan, Chongle AU - Bartley, Laura E. PY - 2021 DO - 10.3389/fpls.2021.640930 UR - https://www.osti.gov/biblio/1812401 ID - 1812401 ER -