Evidence map›Paper›PMID 10747064›Full record

ArticleGenetics2000

Neutral evolution of the sex-determining gene transformer in Drosophila.

B F McAllister, G A McVean

Abstract read
In one paragraph

Article in Genetics, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Article
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  9. Function and evolution of sex determination mechanisms, genes and pathways in insects.BioEssays : news and reviews in molecular, cellular and developmental biology · 2011
    Review
  10. Article
  11. Article
  12. Origin of a function by tandem gene duplication limits the evolutionary capability of its sister copy.Proceedings of the National Academy of Sciences of the United States of America · 2010
    Article
  13. Article
  14. Article
  15. Article
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  18. Article
  19. 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

2 authors.

B F McAllisterInstitute for Cell, Animal and Population Biology, University of Edinburgh, United Kingdom. bryantm@uta.edu
G A McVean

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The amino acid sequence of the transformer (tra) gene exhibits an extremely rapid rate of evolution among Drosophila species, although the gene performs a critical step in sex determination. These changes in amino acid sequence are the result of either natural selection or neutral evolution. To differentiate between selective and neutral causes of this evolutionary change, analyses of both intraspecific and interspecific patterns of molecular evolution of tra gene sequences are presented. Sequences of 31 tra alleles were obtained from Drosophila americana. Many replacement and silent nucleotide variants are present among the alleles; however, the distribution of this sequence variation is consistent with neutral evolution. Sequence evolution was also examined among six species representative of the genus Drosophila. For most lineages and most regions of the gene, both silent and replacement substitutions have accumulated in a constant, clock-like manner. In exon 3 of D. virilis and D. americana we find evidence for an elevated rate of nonsynonymous substitution, but no statistical support for a greater rate of nonsynonymous relative to synonymous substitutions. Both levels of analysis of the tra sequence suggest that, although the gene is evolving at a rapid pace, these changes are neutral in function.

Indexed as

Evolution, MolecularSex Determination ProcessesAnimalsBase SequenceDrosophilaDrosophila ProteinsGenetic VariationMolecular Sequence DataNuclear ProteinsSequence Homology, Nucleic AcidSpecies SpecificityDrosophila ProteinsNuclear ProteinsTra protein, Drosophila

Identifiers

PMID10747064
PMCPMC1461033

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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.