Evidence map›Paper›PMID 12399399›Full record

ArticleGenetics2002

The regulatory regions required for B' paramutation and expression are located far upstream of the maize b1 transcribed sequences.

Maike Stam, Christiane Belele, Wusirika Ramakrishna, Jane E Dorweiler, Jeffrey L Bennetzen, Vicki L Chandler

Abstract read
In one paragraph

Article in Genetics, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
8.3field-weighted citation impact, top 3% 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

58 citing papers in PubMed, 127 citations in OpenAlex.

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  10. Will epigenetics be a key player in crop breeding?Frontiers in plant science · 2022
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  11. Article
  12. Cis-regulatory units of grass genomes identified by their DNA methylation.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  13. Article
  14. Article
  15. Review
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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

6 authors at 2 institutions in 1 country.

Maike StamPlant Sciences Department, University of Arizona, Tucson 85721, USA.
Christiane Belele
Wusirika Ramakrishna
Jane E Dorweiler
Jeffrey L Bennetzen
Vicki L Chandler
University of Arizona · USPurdue University West Lafayette · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Paramutation is an interaction between alleles that leads to a heritable change in the expression of one allele. In B'/B-I plants, B-I (high transcription) always changes to B' (low transcription). The new B' allele retains the low expression state in the next generation and paramutates B-I at a frequency of 100%. Comparisons of the structure and expression of B' with that of a closely related allele that does not participate in paramutation demonstrated that transcription from the same promoter-proximal sequences is not sufficient for paramutation. Fine-structure recombination mapping localized sequences required for B' expression and paramutation. The entire 110 kb upstream of the B' transcription start site was cloned and sequenced and the recombination breakpoints were determined for 12 recombinant alleles. Sequences required for expression and paramutation mapped to distinct regions, 8.5-49 kb and 93-106 kb upstream of the B' transcription start site, respectively. Sequencing and DNA blot analyses indicate that the B' region required for paramutation is mostly unique or low copy in the maize genome. These results represent the first example of long-distance regulatory elements in plants and demonstrate that paramutation is mediated by long-distance cis and trans interactions.

Indexed as

Genes, RegulatorChromosome MappingMutationPolymorphism, GeneticRecombination, GeneticTranscription, GeneticZea mays

Identifiers

PMID12399399
PMCPMC1462281
OpenAlexW2215703809

What OpenQuestion holds

Textmetadata
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.