The present invention relates to rice genomic promoter sequences which
promote transcription preferentially in microspores and/or pollen of
plants. Also provided are chimeric genes comprising these promoter
sequences, and plant transformation vectors comprising these chimeric
genes. The present invention also discloses plant cells, plant tissues,
plants, seeds and grains comprising these chimeric genes. The invention
further discloses methods for expressing foreign nucleic acid sequences
preferentially in pollen and for producing plants with modified pollen
fertility.