A novel dominant glossy mutation causes suppression of wax biosynthesis pathway and deficiency of cuticular wax in Brassica napus
- Pu, Y.
- Gao, J.
- Guo, Y.
- Liu, T.
- Zhu, L.
- Xu, P.
- Yi, B.
- Wen, J.
- Tu, J.
- Ma, C.
- Fu, T.
- Zou, J.
- Shen, J.
DOIAbstract
Background: The aerial parts of land plants are covered with cuticular waxes that limit non-stomatal water loss and gaseous exchange, and protect plants from ultraviolet radiation and pathogen attack. This is the first report on the characterization and genetic mapping of a novel dominant glossy mutant (BnaA.GL) in Brassica napus.Results: Transmission electron microscopy revealed that the cuticle ultrastructure of GL mutant leaf and stem were altered dramatically compared with that of wide type (WT). Scanning electron microscopy corroborated the reduction of wax on the leaf and stem surface. A cuticular wax analysis of the GL mutant leaves further confirmed the drastic decrease in the total wax content, and a wax compositional analysis reve...
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