Bypassing genomic imprinting allows seed development
نویسندگان
چکیده
منابع مشابه
Regulation and Flexibility of Genomic Imprinting during Seed Development W
Genomic imprinting results in monoallelic gene expression in a parent-of-origin–dependent manner. It is achieved by the differential epigenetic marking of parental alleles. Over the past decade, studies in the model systems Arabidopsis thaliana and maize (Zea mays) have shown a strong correlation between silent or active states with epigenetic marks, such as DNA methylation and histone modifica...
متن کاملRegulation and flexibility of genomic imprinting during seed development.
Genomic imprinting results in monoallelic gene expression in a parent-of-origin-dependent manner. It is achieved by the differential epigenetic marking of parental alleles. Over the past decade, studies in the model systems Arabidopsis thaliana and maize (Zea mays) have shown a strong correlation between silent or active states with epigenetic marks, such as DNA methylation and histone modifica...
متن کاملImprinting and seed development.
Imprinted genes are expressed predominantly from one allele in a parent-of-origin–specific manner. The endosperm, a seed tissue that mediates the transfer of nutrients from the maternal parent to the embryo, is an important site of imprinting in flowering plants. Imprinted genes have been identified in maize and Arabidopsis thaliana, but crosses in a variety of species suggest that the effect o...
متن کاملGenomic imprinting and epigenetic control of development.
Epigenetic mechanisms are extensively utilized during mammalian development. Specific patterns of gene expression are established during cell fate decisions, maintained as differentiation progresses, and often augmented as more specialized cell types are required. Much of what is known about these mechanisms comes from the study of two distinct epigenetic phenomena: genomic imprinting and X-chr...
متن کاملGenomic imprinting in fetal growth and development.
Each somatic cell of the human body contains 46 chromosomes consisting of two sets of 23; one inherited from each parent. These chromosomes can be categorised as 22 pairs of autosomes and two sex chromosomes; females are XX and males are XY. Similarly, at the molecular level, two copies of each autosomal gene exist; one copy derived from each parent. Until the mid-1980s, it was assumed that eac...
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ژورنال
عنوان ژورنال: Nature
سال: 2007
ISSN: 0028-0836,1476-4687
DOI: 10.1038/nature05770