Evidence map›Paper›PMID 22872147›Full record

ReviewMammalian genome : official journal of the International Mammalian Genome Society2012

Genetic control of multiple births in low ovulating mammalian species.

Aurélie Vinet, Laurence Drouilhet, Loys Bodin, Philippe Mulsant, Stéphane Fabre, Florence Phocas

Abstract readComparative StudyReview
PubMed Publisher
In one paragraph

Review in Mammalian genome : official journal of the International Mammalian Genome Society, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 13% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.

  1. Pooled it
  2. Unravelling Twin Births in German Holstein Cows: Phenotypic Associations, Genetic Analysis and Potential Underlying Genes and Hormones.Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie · 2026
    Article
  3. Alanine Derived fromResearch (Washington, D.C.) · 2025
    Article
  4. Evolution of Litter Size: Proximate and Ultimate Mechanisms.Integrative and comparative biology · 2024
    Review
  5. Article
  6. Article
  7. Article
  8. Effects of New Mutations inVeterinary sciences · 2023
    Article
  9. Article
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  11. Article
  12. Review
  13. Article
  14. Novel Variants inGenes · 2020
    Article
  15. Article
  16. 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

6 authors at 3 institutions in 1 country.

Aurélie VinetINRA, UMR1313 Génétique Animale et Biologie Intégrative, 78352, Jouy-en-Josas Cedex, France.
Laurence Drouilhet
Loys Bodin
Philippe Mulsant
Stéphane Fabre
Florence Phocas
Génétique Animale et Biologie Intégrative · FRLaboratoire de Génétique Cellulaire · FRPhysiologie de la Reproduction et des Comportements · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In mammals, litter size is a highly variable trait. Some species such as humans or cattle are monotocous, with one or sometimes two newborns per birth, whereas others, the polytocous species such as mice or pigs, are highly prolific and often produce a dozen newborns at each farrowing. In monotocous species, however, two or three newborns per birth may sometime be unwanted. In more polytocous species such as sheep or pigs, litter size is studied in order to increase livestock prolificacy. By contrast, twinning rates in humans or cattle may increase birth difficulties and health problems in the newborns. In this context, the aim of our review was to provide a clearer understanding of the genetic and physiological factors that control multiple births in low-ovulating mammalian species, with particular focus on three species: sheep, cattle, and humans, where knowledge of the ovulation rate in one may enlighten findings in the others. This article therefore reviews the phenotypic and genetic variability observed with respect to ovulation and twinning rates. It then presents the QTL and major genes that have been identified in each species. Finally, we draw a picture of the diversity of the physiological mechanisms underlying multiple ovulation. Although several major genes have been discovered in sheep, QTL detection methods in humans or cattle have suggested that the determinism of litter size is complex and probably involves several genes in order to explain variations in the number of ovulations.

Indexed as

PhenotypeAnimalsCattleFemaleHumansLitter SizeMammalsModels, BiologicalOvulationPregnancyPregnancy, MultipleQuantitative Trait LociSheepSpecies Specificity

Identifiers

PMID22872147
OpenAlexW1996360128

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.