| RRC ID |
21917
|
| 著者 |
Yu B, Lin Z, Li H, Li X, Li J, Wang Y, Zhang X, Zhu Z, Zhai W, Wang X, Xie D, Sun C.
|
| タイトル |
TAC1, a major quantitative trait locus controlling tiller angle in rice.
|
| ジャーナル |
Plant J
|
| Abstract |
A critical step during rice (Oryza sativa) cultivation is dense planting: a wider tiller angle will increase leaf shade and decrease photosynthesis efficiency, whereas a narrower tiller angle makes for more efficient plant architecture. The molecular basis of tiller angle remains unknown. This research demonstrates that tiller angle is controlled by a major quantitative trait locus, TAC1 (Tiller Angle Control 1). TAC1 was mapped to a 35-kb region on chromosome 9 using a large F(2) population from crosses between an indica rice, IR24, which displays a relatively spread-out plant architecture, and an introgressed line, IL55, derived from japonica rice Asominori, which displays a compact plant architecture with extremely erect tillers. Genetic complementation further identified the TAC1 gene, which harbors three introns in its coding region and a fourth 1.5-kb intron in the 3'-untranslated region. A mutation in the 3'-splicing site of this 1.5-kb intron from 'AGGA' to 'GGGA' decreases the level of tac1, resulting in a compact plant architecture with a tiller angle close to zero. Further sequence verification of the mutation in the 3'-splicing site of the 1.5-kb intron revealed that the tac1 mutation 'GGGA' was present in 88 compact japonica rice accessions and TAC1 with 'AGGA' was present in 21 wild rice accessions and 43 indica rice accessions, all with the spread-out form, indicating that tac1 had been extensively utilized in densely planted rice grown in high-latitude temperate areas and at high altitudes where japonica rice varieties are widely cultivated.
|
| 巻・号 |
52(5)
|
| ページ |
891-8
|
| 公開日 |
2007-12-1
|
| DOI |
10.1111/j.1365-313X.2007.03284.x
|
| PII |
TPJ3284
|
| PMID |
17908158
|
| MeSH |
Amino Acid Sequence
Base Sequence
Chromosome Mapping
Chromosomes, Plant
Crosses, Genetic
Expressed Sequence Tags
Molecular Sequence Data
Oryza / anatomy & histology
Oryza / genetics*
Oryza / growth & development
Phenotype
Plant Proteins / chemistry
Plant Proteins / genetics*
Plant Proteins / physiology
Quantitative Trait Loci*
RNA, Messenger / metabolism
Sequence Alignment
|
| IF |
6.141
|
| 引用数 |
150
|
|
WOS 分野
|
PLANT SCIENCES
|
| リソース情報 |
| イネ |
CSSL |
