This disclosure concerns compositions and methods for promoting transcription of a nucleotide sequence in a plant or plant cell, employing a promoter from a Panicum virgatum (Pavir.Cb02009) egg cell gene. Some embodiments relate to a promoter from a Panicum virgatum (Pavir.Cb02009) egg cell gene that functions in plants to promote transcription of operably linked nucleotide sequences. Other embodiments relate to a 3′ UTR from a Panicum virgatum (Pavir.Cb02009) egg cell gene that functions in plants to promote transcription of operably linked nucleotide sequences.