Evidence map›Paper›PMID 41719993›Full record

ArticlePoultry science2026

Genome-wide association study reveals the genetic basis of meat quality traits in Sichuan Shelduck.

Zhao Yang, Yang Xi, Jingjing Qi, Lili Bai, Jun Zhang, Jia Lv, Bo Li, Liang Li, Hehe Liu

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Poultry science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. 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

9 authors.

Zhao YangState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, 610000, PR China; Farm Animal Germplasm Resources and Biotech Breeding Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, PR China.
Yang XiCollege of Life Science, Sichuan Agricultural University, Ya'an 625000, Sichuan, PR China.
Jingjing QiState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, 610000, PR China; Farm Animal Germplasm Resources and Biotech Breeding Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, PR China.
Lili BaiState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, 610000, PR China; Farm Animal Germplasm Resources and Biotech Breeding Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, PR China.
Jun ZhangRural Revitalization Development Service Centre, Zigong, Sichuan, PR China.
Jia LvRural Revitalization Development Service Centre, Zigong, Sichuan, PR China.
Bo LiFarming Service Centre, Rong County, Zigong, Sichuan, PR China.
Liang LiState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, 610000, PR China; Farm Animal Germplasm Resources and Biotech Breeding Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, PR China.
Hehe LiuState Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, 610000, PR China; Farm Animal Germplasm Resources and Biotech Breeding Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, PR China; College of Life Science, Sichuan Agricultural University, Ya'an 625000, Sichuan, PR China. Electronic address: liuee1985@sicau.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sichuan Shelduck, a unique Chinese indigenous duck breed, exhibits superior meat quality traits, but its genetic basis has not been systematically evaluated. This study assessed meat quality traits, including pH, color, shear force, moisture, and intramuscular fat (IMF) in 240 Sichuan Shelducks (123 males and 117 females). At 90 days, males exhibited higher IMF (2.83% ± 0.58 vs. 2.79% ± 0.63, P < 0.01) and moisture content (76.35% ± 1.04 vs. 75.68% ± 2.3, P < 0.01), but lower shear force (31.00 ± 9.11 N), compared with females (33.32 ± 10.03 N). Phenotypic correlation analysis revealed that moisture content was positively correlated with flesh color and tenderness. SNP-based heritability estimates were moderate to high for moisture (0.42), meat lightness (L*, 0.39), and IMF (0.34). Genome-wide association studies (GWAS) identified 29 significant SNPs for IMF on chromosome 21, with the peak SNP (chr21:2210804 T > C) near STK4 explaining 19.68% of the phenotypic variance. GO functional analysis results speculated that STK4 may be involved in adipocyte differentiation through the FoxO/MAPK pathway. Transcriptomic analysis of pectoral muscle with high versus low IMF highlighted enrichment of DGAT2 in Glycerolipid metabolism and PPAR signaling pathways. Regression analysis prioritized RALY for its role in cholesterol homeostasis. These candidate genes (STK4, DGAT2, RALY) and associated molecular markers provide a genetic basis for improving Sichuan Shelduck meat quality in breeding programs.

Indexed as

DucksGenome-Wide Association StudyMeatAnimalsFemaleMalePhenotypePolymorphism, Single NucleotideCandidate geneGWASMeat qualityMolecular markersSichuan Shelduck

Identifiers

PMID41719993
PMCPMC12934327

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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.