Evidence map›Paper›PMID 20409176›Full record

ArticleThe New phytologist2010

Heterochromatin, small RNA and post-fertilization dysgenesis in allopolyploid and interploid hybrids of Arabidopsis.

Robert A Martienssen

Open access · greenAbstract read
In one paragraph

Article in The New phytologist, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
17.0field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 92 citations in OpenAlex.

  1. Article
  2. Review
  3. Comprehensive Analysis ofInternational journal of molecular sciences · 2024
    Article
  4. Article
  5. Genetic and environmental manipulation ofFrontiers in plant science · 2023
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

1 author at 1 institution in 1 country.

Robert A MartienssenCold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA. martiens@cshl.edu
Cold Spring Harbor Laboratory · US

Funding

Transposons, RNA Interference and HeterochromatinR01GM067014 · NIGMS · COLD SPRING HARBOR LABORATORY · PI MARTIENSSEN, ROBERT A · 2003 to 2016
$4.1M
NIGMS NIH HHS R01 GM067014
6 · The paper itself

Abstract

In many plants, including Arabidopsis, hybrids between species and subspecies encounter postfertilization barriers in which hybrid seed fail to develop, or else give rise to infertile progeny. In Arabidopsis, some of these barriers are sensitive to ploidy and to the epigenetic status of donor and recipient genomes. Recently, a role has been proposed for heterochromatin in reprogramming events that occur in reproductive cells, as well as in the embryo and endosperm after fertilization. 21 nt small interfering RNA (siRNA) from activated transposable elements accumulate in pollen, and are translocated from companion vegetative cells into the sperm, while in the maturing seed 24 nt siRNA are primarily maternal in origin. Thus maternal and paternal genomes likely contribute differing small RNA to the zygote and to the endosperm. As heterochromatic sequences also differ radically between, and within, species, small RNA sequences will diverge in hybrids. If transposable elements in the seed are not targeted by small RNA from the pollen, or vice versa, this could lead to hybrid seed failure, in a mechanism reminiscent of hybrid dysgenesis in Drosophila. Heterochromatin also plays a role in apomixis and nucleolar dominance, and may utilize a similar mechanism.

Indexed as

Hybridization, GeneticPolyploidyAnimalsArabidopsisDrosophila melanogasterEpigenesis, GeneticFertilizationGene SilencingGenomic ImprintingHeterochromatinRNA, Small InterferingHeterochromatinRNA, Small Interfering

Identifiers

PMID20409176
PMCPMC3756494
OpenAlexW2116424150

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.