An anther-specific dihydroflavonol 4-reductase-like gene (DRL1) is essential for male fertility in Arabidopsis.

@article{Tang2009AnAD,
  title={An anther-specific dihydroflavonol 4-reductase-like gene (DRL1) is essential for male fertility in Arabidopsis.},
  author={Lee Kwan Tang and Hung B Chu and Wing Kin Yip and Edward C Yeung and Clive Lo},
  journal={The New phytologist},
  year={2009},
  volume={181 3},
  pages={576-87}
}
Arabidopsis contains only one functional dihydroflavonol 4-reductase (DFR) gene, but several DFR-like genes encoding proteins with the conserved NAD(P)H binding domain. At4g35420, named DRL1 (Dihydroflavonol 4-reductase-like1), is a closely related homolog of the rice anther-specific gene OsDFR2 reported previously. Two T-DNA mutants (drl1-1 and drl1-2) were found to have impaired pollen formation and seed production. Histological analysis revealed defective microspore development after tetrad… CONTINUE READING