Evidence map›Paper›PMID 24951565›Full record

ArticleGenome biology and evolution2014

Family size evolution in Drosophila chemosensory gene families: a comparative analysis with a critical appraisal of methods.

Francisca C Almeida, Alejandro Sánchez-Gracia, Jose Luis Campos, Julio Rozas

Abstract readComparative Study
In one paragraph

Article in Genome biology and evolution, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing 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

26 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Reconstructing Gene Gains and Losses with BadiRate.Methods in molecular biology (Clifton, N.J.) · 2022
    Review
  9. Evolution of the Insect PPK Gene Family.Genome biology and evolution · 2021
    Article
  10. Article
  11. Article
  12. How interactions with plant chemicals shape insect genomes.Current opinion in insect science · 2019
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  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

4 authors.

Francisca C AlmeidaDepartament de Genètica and Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Spain Present address: CONICET, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Instituto IEGEBA, Buenos Aires, Argentina.
Alejandro Sánchez-GraciaDepartament de Genètica and Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Spain.
Jose Luis CamposDepartament de Genètica and Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Spain Present address: Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom.
Julio RozasDepartament de Genètica and Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Spain jrozas@ub.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gene turnover rates and the evolution of gene family sizes are important aspects of genome evolution. Here, we use curated sequence data of the major chemosensory gene families from Drosophila-the gustatory receptor, odorant receptor, ionotropic receptor, and odorant-binding protein families-to conduct a comparative analysis among families, exploring different methods to estimate gene birth and death rates, including an ad hoc simulation study. Remarkably, we found that the state-of-the-art methods may produce very different rate estimates, which may lead to disparate conclusions regarding the evolution of chemosensory gene family sizes in Drosophila. Among biological factors, we found that a peculiarity of D. sechellia's gene turnover rates was a major source of bias in global estimates, whereas gene conversion had negligible effects for the families analyzed herein. Turnover rates vary considerably among families, subfamilies, and ortholog groups although all analyzed families were quite dynamic in terms of gene turnover. Computer simulations showed that the methods that use ortholog group information appear to be the most accurate for the Drosophila chemosensory families. Most importantly, these results reveal the potential of rate heterogeneity among lineages to severely bias some turnover rate estimation methods and the need of further evaluating the performance of these methods in a more diverse sampling of gene families and phylogenetic contexts. Using branch-specific codon substitution models, we find further evidence of positive selection in recently duplicated genes, which attests to a nonneutral aspect of the gene birth-and-death process.

Indexed as

Evolution, MolecularAnimalsComputer SimulationDrosophilaGene DuplicationGenetic TechniquesHumansReceptors, OdorantReceptors, OdorantBadiRatechemosensory genesD. sechelliagene birth-and-deathgene duplicationgene tree–species tree reconciliation

Identifiers

PMID24951565
PMCPMC4122928

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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.