| RRC ID |
36467
|
| 著者 |
Nonomura K, Miyoshi K, Eiguchi M, Suzuki T, Miyao A, Hirochika H, Kurata N.
|
| タイトル |
The MSP1 gene is necessary to restrict the number of cells entering into male and female sporogenesis and to initiate anther wall formation in rice.
|
| ジャーナル |
Plant Cell
|
| Abstract |
The function of the novel gene MSP1 (MULTIPLE SPOROCYTE), which controls early sporogenic development, was elucidated by characterizing a retrotransposon-tagged mutation of rice. The MSP1 gene encoded a Leu-rich repeat receptor-like protein kinase. The msp1 mutation gave rise to an excessive number of both male and female sporocytes. In addition, the formation of anther wall layers was disordered and the tapetum layer was lost completely. Although the mutation never affected homologous chromosome pairing and chiasma maintenance, the development of pollen mother cells was arrested at various stages of meiotic prophase I, which resulted in complete male sterility. Meanwhile, plural megaspore mother cells in a mutant ovule generated several megaspores, underwent gametogenesis, and produced germinable seeds when fertilized with wild-type pollen despite disorganized female gametophytes. In situ expression of MSP1 was detected in surrounding cells of male and female sporocytes and some flower tissues, but never in the sporocytes themselves. These results suggest that the MSP1 product plays crucial roles in restricting the number of cells entering into male and female sporogenesis and in initiating anther wall formation in rice.
|
| 巻・号 |
15(8)
|
| ページ |
1728-39
|
| 公開日 |
2003-8-1
|
| DOI |
10.1105/tpc.012401
|
| PMID |
12897248
|
| PMC |
PMC167165
|
| MeSH |
Amino Acid Sequence
Arabidopsis / genetics
Base Sequence
DNA, Plant / genetics
Gene Expression Regulation, Developmental
Gene Expression Regulation, Plant
Genes, Plant*
Meiosis
Molecular Sequence Data
Mutation
Oryza / cytology
Oryza / genetics*
Oryza / growth & development
Oryza / physiology
Protein Serine-Threonine Kinases / genetics
Sequence Homology, Amino Acid
Spores / cytology
Zea mays / genetics
|
| IF |
9.618
|
| 引用数 |
182
|
|
WOS 分野
|
PLANT SCIENCES
BIOCHEMISTRY & MOLECULAR BIOLOGY
CELL BIOLOGY
|
| リソース情報 |
| イネ |
Sterile strain (STER-NIG0001 (MSP1-1), STER-NIG0002 (MSP1-2), STER-NIG0003 (MSP1-3)) |
