Agricultural and Biological Sciences
8 years ago

DROOPING LEAF Gene Revolutionizes Rice Flower Development and Leaf Structure

The Plant Cell
The<i>YABBY</i>Gene<i>DROOPING LEAF</i>Regulates Carpel Specification and Midrib Development in<i>Oryza sativa</i> [W]
Takahiro Yamaguchi, Nobuhiro Nagasawa, Shinji Kawasaki, Makoto Matsuoka, Yasuo Nagato, Hiroyuki Hirano

Paper Summary

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The YABBY gene DROOPING LEAF controls the development of carpels and midribs in rice plants. Severe mutations in this gene can turn carpels into stamens. DROOPING LEAF is crucial for specifying carpels in rice flowers, unlike its counterpart in Arabidopsis. It also interacts with other genes to determine floral meristem development. Additionally, DROOPING LEAF is essential for midrib formation in rice leaves by promoting cell growth in the central region. This research sheds light on the genetic mechanisms behind carpel and midrib development in rice plants.