Evidence map›Paper›PMID 33608865›Full record

ArticleJournal of applied genetics2021

A genome-wide association study for prolificacy in three Polish sheep breeds.

Grzegorz Smołucha, Artur Gurgul, Igor Jasielczuk, Aldona Kawęcka, Anna Miksza-Cybulska

Open access · hybridAbstract read
In one paragraph

Article in Journal of applied genetics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

11 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Selection Signatures in the Genome of Dzhalgin Merino Sheep Breed.Animals : an open access journal from MDPI · 2025
    Article
  3. Article
  4. Article
  5. Review
  6. Genome-wide study for signatures of selection identifies genomic regions and candidate genes associated with milk traits in sheep.Mammalian genome : official journal of the International Mammalian Genome Society · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
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

5 authors at 2 institutions in 1 country.

Grzegorz SmołuchaDepartment of Animal Molecular Biology, National Research Institute of Animal Production, Krakowska 1, 32-083, Balice, Poland. grzegorz.smolucha@izoo.krakow.pl.ORCID http://orcid.org/0000-0001-5128-657X
Artur GurgulDepartment of Animal Molecular Biology, National Research Institute of Animal Production, Krakowska 1, 32-083, Balice, Poland.
Igor JasielczukDepartment of Animal Molecular Biology, National Research Institute of Animal Production, Krakowska 1, 32-083, Balice, Poland.
Aldona KawęckaDepartment of Sheep and Goat Breeding, National Research Institute of Animal Production, 32-083 Krakowska 1, 32-083, Balice, Poland.
Anna Miksza-CybulskaDepartment of Sheep and Goat Breeding, National Research Institute of Animal Production, 32-083 Krakowska 1, 32-083, Balice, Poland.
National Research Institute of Animal Production · PLUniversity of Agriculture in Krakow · PL

Funding

Narodowe Centrum Badań i Rozwoju BIOSTRATEG2/297267/14/NCBR/201601
6 · The paper itself

Abstract

Reproductive traits (especially litter size) are usually characterized by low heritability, and thus, phenotypic selection is often ineffective and slow. In order to improve fertility characteristics such as ovulation rate and litter size, it seems more effective to select breeding animals based on their genotype. The aim of the study was to use genome-wide association study (GWAS) in three sheep breeds to identify the genetic variants affecting the litter size in sheep. The study allowed us to identify one genome-wide significant SNP (rs402032081-located in ephrin type-A receptor 6, EPHA6) showing an association with litter size in Polish Mountain Sheep. We suggest that the EPHA6 gene can be a candidate gene for prolificacy trait in selected breeds of sheep; however, it needs further functional data for validation.

Indexed as

Litter SizeAnimalsFemaleGenome-Wide Association StudyGenotypePhenotypePolandPolymorphism, Single NucleotidePregnancyReceptor, EphA6Sheep, DomesticReceptor, EphA6EPHA6GWASProlificacySheepSNP

Identifiers

PMID33608865
PMCPMC8032615
OpenAlexW3131073419

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.