Evidence map›Paper›PMID 19351792›Full record

ArticleMolecular biology and evolution2009

Strong evidence for lineage and sequence specificity of substitution rates and patterns in Drosophila.

Nadia D Singh, Peter F Arndt, Andrew G Clark, Charles F Aquadro

Open access · greenAbstract read
In one paragraph

Article in Molecular biology and evolution, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

25 citing papers in PubMed, 62 citations in OpenAlex.

  1. Article
  2. Article
  3. Estimating the evolutionary fitness of specific synonymous codon changes.bioRxiv : the preprint server for biology · 2026
    Article
  4. Dinucleotide preferences underlie apparent codon preference reversals in theProceedings of the National Academy of Sciences of the United States of America · 2025
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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 at 2 institutions in 2 countries.

Nadia D SinghDepartment of Molecular Biology and Genetics, Cornell University. nds25@cornell.edu
Peter F Arndt
Andrew G Clark
Charles F Aquadro
Cornell University · USMax Planck Society · DE

Funding

MOLECULAR POPULATION GENETICS OF DROSOPHILA MELANOGASTERR01GM036431 · NIGMS · CORNELL UNIVERSITY ITHACA · PI AQUADRO, CHARLES F · 1986 to 2010
$2.6M
Role of mutation rate variation in patterns of molecular evolution in DrosophiaF32GM080944 · NIGMS · CORNELL UNIVERSITY · PI SINGH, NADIA D · 2007 to 2009
$148k
NIGMS NIH HHS 1F32 GM 080944-01NIGMS NIH HHS F32 GM080944NIGMS NIH HHS R01 GM036431
6 · The paper itself

Abstract

Rates of single nucleotide substitution in Drosophila are highly variable within the genome, and several examples illustrate that evolutionary rates differ among Drosophila species as well. Here, we use a maximum likelihood method to quantify lineage-specific substitutional patterns and apply this method to 4-fold degenerate synonymous sites and introns from more than 8,000 genes aligned in the Drosophila melanogaster group. We find that within species, different classes of sequence evolve at different rates, with long introns evolving most slowly and short introns evolving most rapidly. Relative rates of individual single nucleotide substitutions vary approximately 3-fold among lineages, yielding patterns of substitution that are comparatively less GC-biased in the melanogaster species complex relative to Drosophila yakuba and Drosophila erecta. These results are consistent with a model coupling a mutational shift toward reduced GC content, or a shift in mutation-selection balance, in the D. melanogaster species complex, with variation in selective constraint among different classes of DNA sequence. Finally, base composition of coding and intronic sequences is not at equilibrium with respect to substitutional patterns, which primarily reflects the slow rate of the substitutional process. These results thus support the view that mutational and/or selective processes are labile on an evolutionary timescale and that if the process is indeed selection driven, then the distribution of selective constraint is variable across the genome.

Indexed as

MutationAnimalsBase CompositionDrosophilaEvolution, MolecularGenome, InsectIntronsLikelihood FunctionsPhylogenyPolymorphism, Single Nucleotide

Identifiers

PMID19351792
PMCPMC2734147
OpenAlexW1975520815

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.