Evidence map›Paper›PMID 21949391›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2011

Ancient host specificity within a single species of brood parasitic bird.

Claire N Spottiswoode, Katherine Faust Stryjewski, Suhel Quader, John F R Colebrook-Robjent, Michael D Sorenson

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Article
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  7. Genetic architecture facilitates then constrains adaptation in a host-parasite coevolutionary arms race.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  8. Article
  9. Article
  10. The coevolutionary biology of brood parasitism: a call for integration.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019
    Article
  11. Convergent evolution of reduced eggshell conductance in avian brood parasites.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019
    Article
  12. Genetic Diversity andFrontiers in genetics · 2019
    Article
  13. Article
  14. Article
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  19. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Claire N SpottiswoodeDepartment of Zoology, University of Cambridge, Cambridge CB2 3EJ, United Kingdom.
Katherine Faust Stryjewski
Suhel Quader
John F R Colebrook-Robjent
Michael D Sorenson

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Parasites that exploit multiple hosts often experience diversifying selection for host-specific adaptations. This can result in multiple strains of host specialists coexisting within a single parasitic species. A long-standing conundrum is how such sympatric host races can be maintained within a single parasitic species in the face of interbreeding among conspecifics specializing on different hosts. Striking examples are seen in certain avian brood parasites such as cuckoos, many of which show host-specific differentiation in traits such as host egg mimicry. Exploiting a Zambian egg collection amassed over several decades and supplemented by recent fieldwork, we show that the brood parasitic Greater Honeyguide Indicator indicator exhibits host-specific differentiation in both egg size and egg shape. Genetic analysis of honeyguide eggs and chicks show that two highly divergent mitochondrial DNA lineages are associated with ground- and tree-nesting hosts, respectively, indicating perfect fidelity to two mutually exclusive sets of host species for millions of years. Despite their age and apparent adaptive diversification, however, these ancient lineages are not cryptic species; a complete lack of differentiation in nuclear genes shows that mating between individuals reared by different hosts is sufficiently frequent to prevent speciation. These results indicate that host specificity is maternally inherited, that host-specific adaptation among conspecifics can be maintained without reproductive isolation, and that host specificity can be remarkably ancient in evolutionary terms.

Indexed as

Biological EvolutionPhylogenyAdaptation, BiologicalAnalysis of VarianceAnimalsBase SequenceBirdsDNA, MitochondrialDNA PrimersHost SpecificityMolecular Sequence DataNesting BehaviorPhenotypeRNA, RibosomalSequence Analysis, DNASpecies SpecificityDNA, MitochondrialDNA PrimersRNA, RibosomalRNA, ribosomal, 12S

Identifiers

PMID21949391
PMCPMC3203796

What OpenQuestion holds

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Read underepoch 390

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.