Evidence map›Paper›PMID 16963708›Full record

ArticleGenome research2006

Large-scale intron conservation and order-of-magnitude variation in intron loss/gain rates in apicomplexan evolution.

Scott William Roy, David Penny

Abstract readComparative Study
In one paragraph

Article in Genome research, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
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

23 citing papers in PubMed.

  1. Article
  2. Genome microsatellite diversity within the Apicomplexa phylum.Molecular genetics and genomics : MGG · 2016
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Origin of spliceosomal introns and alternative splicing.Cold Spring Harbor perspectives in biology · 2014
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Alternative splicing: a missing piece in the puzzle of intron gain.Proceedings of the National Academy of Sciences of the United States of America · 2008
    Article
  20. Article
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

2 authors.

Scott William RoyAllan Wilson Centre for Molecular Ecology and Evolution, Massey University, Palmerston North, New Zealand. scottwroy@gmail.com
David Penny

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The age of modern introns and the evolutionary forces controlling intron loss and gain remain matters of much debate. In the case of the apicomplexan malaria parasite Plasmodium falciparum, previous studies have shown that while the positions of two thirds of P. falciparum introns are not shared with surveyed non-apicomplexans (leaving open the possibility that they were relatively recently gained), 99.1% are shared with Plasmodium yoelii, which diverged from P. falciparum at least 100 Mya. We show here that 60.6% of P. falciparum intron positions in conserved regions are shared with the distantly related apicomplexan Theileria parva, whereas only 18.2% of introns in the more intron-rich T. parva are shared with P. falciparum. Comparison of 3305 pairs of orthologous genes between T. parva and Theileria annulata showed that 7089/7111 (99.7%) introns in conserved regions are shared between species. These levels of conservation imply significant differences in rates of intron loss and gain through apicomplexan history. Because transposable elements (TEs) and/or (often TE-encoded) reverse transcriptase are implicated in models of intron loss and gain, the observed low rates of intron loss and gain in recent Plasmodium and Theileria evolution are consistent with the lack of known TE in those groups. We suggest that intron loss/gain in some eukaryotic lineages may be concentrated in relatively short episodes coincident with occasional TE invasions.

Indexed as

Evolution, MolecularGenetic VariationAnimalsConserved SequenceGenes, ProtozoanIntronsPlasmodium falciparumTheileria

Identifiers

PMID16963708
PMCPMC1581436

What OpenQuestion holds

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Registered trials

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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.