Maternal control of Pol IV-dependent siRNAs in Arabidopsis endosperm

Rebecca A. Mosher

doi:10.1111/j.1469-8137.2009.03144.x

Maternal control of Pol IV-dependent siRNAs in Arabidopsis endosperm

Rebecca A. Mosher

Research output: Contribution to journal › Review article › peer-review

19 Scopus citations

Abstract

Small RNAs recently emerged as ubiquitous regulators of gene expression. However, the most abundant class of small RNAs in flowering plants is poorly understood. Known as Pol IV-dependent (p4-)siRNAs, these small RNAs are associated with transcriptional gene silencing, transposable elements and heterochromatin formation. Recent research demonstrates that they are initially expressed in the maternal gametophyte and uniparentally expressed from maternal chromosomes in developing endosperm. This unique expression pattern links p4-siRNAs to double fertilization, parental genome interactions and imprinted gene expression.

Original language	English (US)
Pages (from-to)	358-364
Number of pages	7
Journal	New Phytologist
Volume	186
Issue number	2
DOIs	https://doi.org/10.1111/j.1469-8137.2009.03144.x
State	Published - Apr 2010
Externally published	Yes

Keywords

Heterochromatin
Imprinting
RNA Polymerase IV
RNA directed DNA methylation
RNA silencing
Small interfering RNAs (siRNAs)

ASJC Scopus subject areas

Physiology
Plant Science

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10.1111/j.1469-8137.2009.03144.x

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title = "Maternal control of Pol IV-dependent siRNAs in Arabidopsis endosperm",

abstract = "Small RNAs recently emerged as ubiquitous regulators of gene expression. However, the most abundant class of small RNAs in flowering plants is poorly understood. Known as Pol IV-dependent (p4-)siRNAs, these small RNAs are associated with transcriptional gene silencing, transposable elements and heterochromatin formation. Recent research demonstrates that they are initially expressed in the maternal gametophyte and uniparentally expressed from maternal chromosomes in developing endosperm. This unique expression pattern links p4-siRNAs to double fertilization, parental genome interactions and imprinted gene expression.",

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AB - Small RNAs recently emerged as ubiquitous regulators of gene expression. However, the most abundant class of small RNAs in flowering plants is poorly understood. Known as Pol IV-dependent (p4-)siRNAs, these small RNAs are associated with transcriptional gene silencing, transposable elements and heterochromatin formation. Recent research demonstrates that they are initially expressed in the maternal gametophyte and uniparentally expressed from maternal chromosomes in developing endosperm. This unique expression pattern links p4-siRNAs to double fertilization, parental genome interactions and imprinted gene expression.

KW - Heterochromatin

KW - Imprinting

KW - RNA Polymerase IV

KW - RNA directed DNA methylation

KW - RNA silencing

KW - Small interfering RNAs (siRNAs)

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Maternal control of Pol IV-dependent siRNAs in Arabidopsis endosperm

Abstract

Keywords

ASJC Scopus subject areas

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