Evidence map›Paper›PMID 26518887›Full record

ArticleBMC genetics2015

A study of vertebra number in pigs confirms the association of vertnin and reveals additional QTL.

Gary A Rohrer, Dan J Nonneman, Ralph T Wiedmann, James F Schneider

Open access · diamondAbstract read
In one paragraph

Article in BMC genetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 64 citations in OpenAlex.

  1. Pooled it
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  20. Polymorphism ofAnimals : an open access journal from MDPI · 2020
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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 3 institutions in 1 country.

Gary A RohrerUnited States Department of Agriculture, Agricultural Research Service,, U.S. Meat Animal Research Center, Clay Center, NE, 68933, USA. Gary.Rohrer@ars.usda.gov.
Dan J NonnemanUnited States Department of Agriculture, Agricultural Research Service,, U.S. Meat Animal Research Center, Clay Center, NE, 68933, USA. Dan.Nonneman@ars.usda.gov.
Ralph T WiedmannUnited States Department of Agriculture, Agricultural Research Service,, U.S. Meat Animal Research Center, Clay Center, NE, 68933, USA. Wiedmann@windstream.net.
James F SchneiderUnited States Department of Agriculture, Agricultural Research Service,, U.S. Meat Animal Research Center, Clay Center, NE, 68933, USA. james.f.schneider@gmail.com.
United States Department of Agriculture · USAgricultural Research Service · USRoman L. Hruska U.S. Meat Animal Research Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFormation of the vertebral column is a critical developmental stage in mammals. The strict control of this process has resulted in little variation in number of vertebrae across mammalian species and no variation within most mammalian species. The pig is quite unique as considerable variation exists in number of thoracic vertebrae as well as number of lumbar vertebrae. At least two genes have been identified that affect number of vertebrae in pigs yet considerable genetic variation still exists. Therefore, a genome-wide association (GWA) analysis was conducted to identify additional genomic regions that affect this trait.

resultsA total of 1883 animals were phenotyped for the number of ribs and thoracolumbar vertebrae as well as successfully genotyped with the Illumina Porcine SNP60 BeadChip. After data editing, 41,148 SNP markers were included in the GWA analysis. These animals were also phenotyped for kyphosis. Fifty-three 1 Mb windows each explained at least 1.0 % of the genomic variation for vertebrae counts while 16 regions were significant for kyphosis. Vertnin genotype significantly affected vertebral counts as well. The region with the largest effect for number of lumbar vertebrae and thoracolumbar vertebrae were located over the Hox B gene cluster and the largest association for thoracic vertebrae number was over the Hox A gene cluster. Genetic markers in significant regions accounted for approximately 50% of the genomic variation. Less genomic variation for kyphosis was described by QTL regions and no region was associated with kyphosis and vertebra counts.

conclusionsThe importance of the Hox gene families in vertebral development was highlighted as significant associations were detected over the A, B and C families. Further evaluation of these regions and characterization of variants within these genes will expand our knowledge on vertebral development using natural genetic variants segregating in commercial swine.

Indexed as

Genome-Wide Association StudyAnimalsChromosomes, MammalianPhenotypeQuantitative Trait LociSpine

Identifiers

PMID26518887
PMCPMC4628235
OpenAlexW1956441033

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.