Evidence map›Paper›PMID 10468597›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1999

Late changes in spliceosomal introns define clades in vertebrate evolution.

B Venkatesh, Y Ning, S Brenner

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

65 citing papers in PubMed, 215 citations in OpenAlex.

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  15. Analysis of phylogenetic signal in protostomial intron patterns using Mutual Information.Theory in biosciences = Theorie in den Biowissenschaften · 2013
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5 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 2 countries.

B VenkateshMarine Molecular Genetics Laboratory, Institute of Molecular and Cell Biology, 30 Medical Drive, Singapore 117609. mcbbv@imcb.nus.edu.sg
Y Ning
S Brenner
Institute of Molecular and Cell Biology · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The evolutionary origin of spliceosomal introns has been the subject of much controversy. Introns are proposed to have been both lost and gained during evolution. If the gain or loss of introns are unique events in evolution, they can serve as markers for phylogenetic analysis. We have made an extensive survey of the phylogenetic distribution of seven spliceosomal introns that are present in Fugu genes, but not in their mammalian homologues; we show that these introns were acquired by actinopterygian (ray-finned) fishes at various stages of evolution. We have also investigated the intron pattern of the rhodopsin gene in fishes, and show that the four introns found in the ancestral chordate rhodopsin gene were simultaneously lost in a common ancestor of ray-finned fishes. These changes in introns serve as excellent markers for phylogenetic analysis because they reliably define clades. Our intron-based cladogram establishes the difficult-to-ascertain phylogenetic relationships of some ray-finned fishes. For example, it shows that bichirs (Polypterus) are the sister group of all other extant ray-finned fishes.

Indexed as

Evolution, MolecularPhylogenyAmino Acid SequenceAnimalsBase SequenceCloning, MolecularDystrophinExonsFishesGenetic MarkersGrowth HormoneIntronsMolecular Sequence DataPolymerase Chain ReactionRhodopsinSpliceosomesDystrophinGenetic MarkersGrowth HormoneRhodopsin

Identifiers

PMID10468597
PMCPMC17877
OpenAlexW2037831767

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.