Evidence map›Paper›PMID 22607048›Full record

ArticleBMC genetics2012

Genome-wide linkage analysis of QTL for growth and body composition employing the PorcineSNP60 BeadChip.

Ana I Fernández, Dafne Pérez-Montarelo, Carmen Barragán, Yuliaxis Ramayo-Caldas, Noelia Ibáñez-Escriche, Anna Castelló, Jose Luis Noguera, Luis Silió, Josep María Folch, M Carmen Rodríguez

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Article in BMC genetics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

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19citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

Who cites it

19 citing papers in PubMed.

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  9. Deciphering the regulation of porcine genes influencing growth, fatness and yield-related traits through genetical genomics.Mammalian genome : official journal of the International Mammalian Genome Society · 2017
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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Ana I FernándezDepartamento de Mejora Genética Animal, INIA, Ctra, De la Coruña km, 7, Madrid, 28040, Spain. avila@inia.es
Dafne Pérez-Montarelo
Carmen Barragán
Yuliaxis Ramayo-Caldas
Noelia Ibáñez-Escriche
Anna Castelló
Jose Luis Noguera
Luis Silió
Josep María Folch
M Carmen Rodríguez

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe traditional strategy to map QTL is to use linkage analysis employing a limited number of markers. These analyses report wide QTL confidence intervals, making very difficult to identify the gene and polymorphisms underlying the QTL effects. The arrival of genome-wide panels of SNPs makes available thousands of markers increasing the information content and therefore the likelihood of detecting and fine mapping QTL regions. The aims of the current study are to confirm previous QTL regions for growth and body composition traits in different generations of an Iberian x Landrace intercross (IBMAP) and especially identify new ones with narrow confidence intervals by employing the PorcineSNP60 BeadChip in linkage analyses.

resultsThree generations (F3, Backcross 1 and Backcross 2) of the IBMAP and their related animals were genotyped with PorcineSNP60 BeadChip. A total of 8,417 SNPs equidistantly distributed across autosomes were selected after filtering by quality, position and frequency to perform the QTL scan. The joint and separate analyses of the different IBMAP generations allowed confirming QTL regions previously identified in chromosomes 4 and 6 as well as new ones mainly for backfat thickness in chromosomes 4, 5, 11, 14 and 17 and shoulder weight in chromosomes 1, 2, 9 and 13; and many other to the chromosome-wide signification level. In addition, most of the detected QTLs displayed narrow confidence intervals, making easier the selection of positional candidate genes.

conclusionsThe use of higher density of markers has allowed to confirm results obtained in previous QTL scans carried out with microsatellites. Moreover several new QTL regions have been now identified in regions probably not covered by markers in previous scans, most of these QTLs displayed narrow confidence intervals. Finally, prominent putative biological and positional candidate genes underlying those QTL effects are listed based on recent porcine genome annotation.

Indexed as

Genetic LinkageQuantitative Trait LociAnimalsBody CompositionChromosomes, MammalianGenetic Association StudiesGrowthOligonucleotide Array Sequence AnalysisPhenotypePolymorphism, Single NucleotideSwine

Identifiers

PMID22607048
PMCPMC3432624

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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.