OsMYB103L

OsMYB103L encodes an R2R3-MYB transcription factor, it influences leaf rolling and mechanical strength in rice (Oryza sativa L.).

Annotated information

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Function

OsMYB103L, which id also called Os08g05520, encodes an R2R3-MYB transcription factor. OsMYB103L may target CESA genes for regulation of cellulose synthesis thus influences leaf shape and mechanical strength in rice, which makes it a potential engineering target for desirable leaf mechanical properties. OsMYB103L is localized in the nucleus and has transactivation activity. Overexpression of OsMYB103L in rice could result in a rolled leaf phenotype, and significantly higher levels of several cellulose synthase genes (CESAs), and a significant cellulose content increase. Knockdown of OsMYB103L by RNA interference could lead to a decreased level of cellulose content thus reduced mechanical strength in leaves. Meanwhile, the expression levels of the relevant CESA genes could also be decreased.