RRC ID |
25689
|
著者 |
Ishiwata A, Ozawa M, Nagasaki H, Kato M, Noda Y, Yamaguchi T, Nosaka M, Shimizu-Sato S, Nagasaki A, Maekawa M, Hirano HY, Sato Y.
|
タイトル |
Two WUSCHEL-related homeobox genes, narrow leaf2 and narrow leaf3, control leaf width in rice.
|
ジャーナル |
Plant Cell Physiol
|
Abstract |
Leaf shape is one of the key determinants of plant architecture. Leaf shape also affects the amount of sunlight captured and influences photosynthetic efficiency; thus, it is an important agronomic trait in crop plants. Understanding the molecular mechanisms governing leaf shape is a central issue of plant developmental biology and agrobiotechnology. Here, we characterized the narrow-leaf phenotype of FL90, a linkage tester line of rice (Oryza sativa). Light and scanning electron microscopic analyses of FL90 leaves revealed defects in the development of marginal regions and a reduction in the number of longitudinal veins. The narrow-leaf phenotype of FL90 shows a two-factor recessive inheritance and is caused by the loss of function of two WUSCHEL-related homeobox genes, NAL2 and NAL3 (NAL2/3), which are duplicate genes orthologous to maize NS1 and NS2 and to Arabidopsis PRS. The overexpression of NAL2/3 in transgenic rice plants results in wider leaves containing increased numbers of veins, suggesting that NAL2/3 expression regulates leaf width. Thus, NAL2/3 can be used to modulate leaf shape and improve agronomic yield in crop plants.
|
巻・号 |
54(5)
|
ページ |
779-92
|
公開日 |
2013-5-1
|
DOI |
10.1093/pcp/pct032
|
PII |
pct032
|
PMID |
23420902
|
MeSH |
Amino Acid Sequence
Base Sequence
Crosses, Genetic
Gene Expression Regulation, Plant
Gene Knockdown Techniques
Genes, Duplicate / genetics
Genes, Homeobox / genetics*
Genes, Plant / genetics*
Models, Biological
Molecular Sequence Data
Mutation / genetics
Oryza / anatomy & histology*
Oryza / genetics*
Oryza / ultrastructure
Phenotype
Plant Leaves / anatomy & histology*
Plant Leaves / genetics*
Plant Leaves / ultrastructure
Plant Proteins / chemistry
Plant Proteins / genetics*
Plant Proteins / metabolism
Plant Vascular Bundle / anatomy & histology
Plant Vascular Bundle / growth & development
Plants, Genetically Modified
RNA, Messenger / genetics
RNA, Messenger / metabolism
|
IF |
4.062
|
引用数 |
34
|
WOS 分野
|
PLANT SCIENCES
CELL BIOLOGY
|
リソース情報 |
イネ |
|
情報 |
Oryzabase |