RRC ID |
3903
|
著者 |
Mizumoto K, Hatano H, Hirabayashi C, Murai K, Takumi S.
|
タイトル |
Altered expression of wheat AINTEGUMENTA homolog, WANT-1, in pistil and pistil-like transformed stamen of an alloplasmic line with Aegilops crassa cytoplasm.
|
ジャーナル |
Dev Genes Evol
|
Abstract |
Homeotic transformation of stamens into pistil-like structures, called pistillody, has been reported in some alloplasmic common wheat lines with Aegilops crassa cytoplasm. An alloplasmic line of Chinese Spring ditelosomic 7BS (CSdt7BS) with Ae. crassa cytoplasm lacking the long arm of the chromosome 7B shows pistillody, and the pistils and transformed stamens are sterile due to abnormal ovule development. To elucidate the molecular mechanism of the ovule abnormality, we compared the expression profiles of floral organs between euplasmic and alloplasmic CSdt7BS lines. Two differential display methods of mRNA profiling demonstrated that Ae. crassa cytoplasm largely affects nuclear gene expression profiles of common wheat. Of the differentially expressed genes, a wheat AINTEGUMENTA (ANT) homolog, WANT-1, was preferentially expressed in pistils but not in stamens, and accumulation of the transcript was limited to ovule primordia at the floral organ development stage. In alloplasmic wheat, WANT-1 expression was patchy and weak at the ovule-development stages. On the other hand, no significant difference in gene expression patterns of wheat AGAMOUS (AG) homologs (WAG-1 and WAG-2) was observed between fertile and sterile pistils. These results indicated that alteration of gene expression after initiation of ovule primordia results in abnormal ovule development, and that the aberrant ovule formation is at least partly associated with the weak expression of WANT-1 around ovule primordia in alloplasmic wheat with Ae. crassa cytoplasm.
|
巻・号 |
219(4)
|
ページ |
175-87
|
公開日 |
2009-4-1
|
DOI |
10.1007/s00427-009-0275-y
|
PMID |
19255779
|
MeSH |
Amplified Fragment Length Polymorphism Analysis
Cell Nucleus / genetics
Cytoplasm / genetics*
Flowers / anatomy & histology
Gene Expression Regulation, Plant*
Poaceae / anatomy & histology
Poaceae / cytology*
Poaceae / genetics
Random Amplified Polymorphic DNA Technique
Triticum / anatomy & histology*
Triticum / cytology
Triticum / embryology
Triticum / genetics*
|
IF |
1.339
|
引用数 |
21
|
WOS 分野
|
EVOLUTIONARY BIOLOGY
DEVELOPMENTAL BIOLOGY
CELL BIOLOGY
|
リソース情報 |
コムギ |
EST
CS(LPGKU2269)?
Norin26(LPGKU2270)?
Norin61(LPGKU2271)?
CSdt7BS(LPGKU2039) |