Function of the ASYMMETRIC LEAVES1 and ASYMMETRIC LEAVES2 genes in leaf development of Arabidopsis

Chiyoko Machida; Yoshihisa Ueno; Yasunori Machida

doi:10.5685/plmorphol.15.30

Chiyoko Machida, Yoshihisa Ueno, Yasunori Machida

著者情報

キーワード: Arabidopsis, knox homeobox genes, leaf development, leaf morphogenesis, shoot apical meristem

ジャーナルフリー

2003 年 15 巻 1 号 p. 30-39

DOI https://doi.org/10.5685/plmorphol.15.30

詳細

Published: 2003 Received: - Available on J-STAGE: 2010/06/28 Accepted: - Advance online publication: - Revised: -
訂正情報
訂正日: 2010/06/28 訂正理由: - 訂正箇所: PDFファイル訂正内容: -

訂正日: 2010/06/28 訂正理由: - 訂正箇所: キーワード情報訂正内容: Wrong : Key words: Arabidopsis, knox homeobox genes, leaf development, leaf morphogenesis, shoot apical meristem
Right : Arabidopsis, knox homeobox genes, leaf development, leaf morphogenesis, shoot apical meristem

訂正日: 2010/06/28 訂正理由: - 訂正箇所: 引用文献情報訂正内容: Wrong : E
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抄録

Summary: The ASYMMETRIC LEAVES1(AS1)and ASYMMETRIC LEAVES2(AS2)genes of Arabidopsis thaliana are involved in the establishment of the leaf venation system, which includes the prominent midvein; as well as in the development of a symmetric flat lamina. Both AS1 and AS2 genes are involved in repression of class1 knox homeobox genes in leaves. We have characterized the AS2 gene, which appears to encode a novel protein with cysteine repeats(Cmotif), a conserved glycine residue, and a leucine-zipper-like sequence in the amino-terminal half of the primary sequence. The AS2 protein belongs to a novel family of proteins that we have designated the AS2 family. Overexpression of AS2 cDNA in transgenic Arabidopsis plants resulted in upwardly curled leaves, which differed markedly from the downwardly curled leaves generated by loss-of-function mutation of AS2. Our results further suggest that AS2 functions to regulate the formation of a flat leaf lamina in the presence of the AS1 gene.

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