TY - JOUR
T1 - Molecular characterization the YABBY gene family in Oryza sativa and expression analysis of OsYABBY1
AU - Toriba, Taiyo
AU - Harada, Kohsuke
AU - Takamura, Atsushi
AU - Nakamura, Hidemitsu
AU - Ichikawa, Hiroaki
AU - Suzaki, Takuya
AU - Hirano, Hiro Yuki
PY - 2007/5/1
Y1 - 2007/5/1
N2 - Members of the YABBY gene family have a general role that promotes abaxial cell fate in a model eudicot, Arabidopsis thaliana. To understand the function of YABBY genes in monocots, we have isolated all YABBY genes in Oryza sativa (rice), and revealed the spatial and temporal expression pattern of one of these genes, OsYABBY1. In rice, eight YABBY genes constitute a small gene family and are classified into four groups according to sequence similarity, exon-intron structure, and organ-specific expression patterns. OsYABBY1 shows unique spatial expression patterns that have not previously been reported for other YABBY genes, so far. OsYABBY1 is expressed in putative precursor cells of both the mestome sheath in the large vascular bundle and the abaxial sclerenchyma in the leaves. In the flower, OsYABBY1 is specifically expressed in the palea and lemma from their inception, and is confined to several cell layers of these organs in the later developmental stages. The OsYABBY1-expressing domains are closely associated with cells that subsequently differentiate into sclerenchymatous cells. These findings suggest that the function of OsYABBY1 is involved in regulating the differentiation of a few specific cell types and is unrelated to polar regulation of lateral organ development.
AB - Members of the YABBY gene family have a general role that promotes abaxial cell fate in a model eudicot, Arabidopsis thaliana. To understand the function of YABBY genes in monocots, we have isolated all YABBY genes in Oryza sativa (rice), and revealed the spatial and temporal expression pattern of one of these genes, OsYABBY1. In rice, eight YABBY genes constitute a small gene family and are classified into four groups according to sequence similarity, exon-intron structure, and organ-specific expression patterns. OsYABBY1 shows unique spatial expression patterns that have not previously been reported for other YABBY genes, so far. OsYABBY1 is expressed in putative precursor cells of both the mestome sheath in the large vascular bundle and the abaxial sclerenchyma in the leaves. In the flower, OsYABBY1 is specifically expressed in the palea and lemma from their inception, and is confined to several cell layers of these organs in the later developmental stages. The OsYABBY1-expressing domains are closely associated with cells that subsequently differentiate into sclerenchymatous cells. These findings suggest that the function of OsYABBY1 is involved in regulating the differentiation of a few specific cell types and is unrelated to polar regulation of lateral organ development.
KW - Cell differentiation
KW - Grass
KW - Oryza sativa (rice)
KW - Plant EvoDevo
KW - Sclerenchyma
KW - YABBY gene
UR - http://www.scopus.com/inward/record.url?scp=34247343978&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34247343978&partnerID=8YFLogxK
U2 - 10.1007/s00438-006-0202-0
DO - 10.1007/s00438-006-0202-0
M3 - Article
C2 - 17216490
AN - SCOPUS:34247343978
VL - 277
SP - 457
EP - 468
JO - Molecular Genetics and Genomics
JF - Molecular Genetics and Genomics
SN - 1617-4615
IS - 5
ER -