Dominance relationships between self-incompatibility alleles controlled by DNA methylation

被引：78
作者：
Shiba, H
Kakizaki, T
Iwano, M
Tarutani, Y
Watanabe, M
Isogai, A
Takayama, S
机构：
[1] Grad Sch Biol Sci, Nara Inst Sci & Technol, Ikoma 6300101, Japan
[2] Iwate Univ, Fac Agr, Morioka, Iwate 0208550, Japan
[3] Tohoku Univ, Grad Sch Life Sci, Aoba Ku, Tohoku 9808577, Japan
来源：
NATURE GENETICS | 2006年 / 38卷 / 03期
基金：
日本学术振兴会;
关键词：
D O I：
10.1038/ng1734
中图分类号：
Q3 [遗传学];
学科分类号：
071007 ; 090102 ;
摘要：
In crucifers, the pollen S-determinant gene, SP11, is sporophytically expressed in the anther tapetum, and the pollen self-incompatibility phenotype is determined by the dominance relationships between the two S-haplotypes it carries. We report here that 5' promoter sequences of recessive SP11 alleles are specifically methylated in the tapetum before the initiation of SP11 transcription. These results suggest that tissue-specific monoallelic de novo DNA methylation is involved in determining the dominance interactions that determine the cruciferous self-incompatibility phenotype.
引用
收藏
页码：297 / 299
页数：3
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