Evidence map›Paper›PMID 40941405›Full record

ArticleAnimals : an open access journal from MDPI2025

Genetic Diversity and Population Structure of Five Pig Breeds from Chongqing, China.

Xi Long, Lidan Zhang, Yu Pan, Liang Zhang, Zhi Tu, Lijuan Zhang, Qing Wang, Hongmei Pan, Zongyi Guo

Abstract read
In one paragraph

Article in Animals : an open access journal from MDPI, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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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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

4 citing papers in PubMed.

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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

9 authors.

Xi LongChongqing Academy of Animal Science, Chongqing 402460, China.ORCID 0000-0001-6767-0971
Lidan ZhangNational Center of Technology Innovation for Pigs, Chongqing 402460, China.
Yu PanChongqing Academy of Animal Science, Chongqing 402460, China.
Liang ZhangChongqing Academy of Animal Science, Chongqing 402460, China.
Zhi TuChongqing Academy of Animal Science, Chongqing 402460, China.
Lijuan ZhangChongqing Academy of Animal Science, Chongqing 402460, China.
Qing WangNational Center of Technology Innovation for Pigs, Chongqing 402460, China.
Hongmei PanChongqing Academy of Animal Science, Chongqing 402460, China.
Zongyi GuoChongqing Academy of Animal Science, Chongqing 402460, China.

Funding

the National Key Research and Development Plan of China; the Accurate identification of agricultural germplasm resources in Chongqing; the Strategic Cooperation Funding Project between Chongqing Municipal Government and the Chinese Academy of Agricultural 2021YFD1200303; 23316; 23310; CQMAITS202312
6 · The paper itself

Abstract

Five pig breeds have been developed in Chongqing and are economically important livestock resources in this region: Hechuan Black pigs (HC), Luopanshan pigs (LP), Penzhou Mountain pigs (PZ), Quxi pigs (QX), and Rongchang pigs (RC). Understanding the genetic diversity and population structure of pig breeds can help improve the conservation and management of their genetic resources. This study sequenced SNPs in 188 pigs from five breeds in Chongqing, China, using a 50K SNP chip. Of the 45,211 detected SNPs, 9442 were excluded after quality control, and 35,769 were included in the analysis. Among the five breeds, QX had the highest genetic diversity. Principal component analysis and phylogenetic trees showed that the five populations were phylogenetically distinct. Population structure analysis identified five subpopulations at K = 5, indicating that RC were genetically independent. RC had the fastest linkage disequilibrium (LD) decay, suggesting weaker selection pressure. In turn, HC exhibited the slowest decay, indicating stronger selection pressure and closer relatedness within this population. The analysis of genetic differentiation indices revealed that LP and HC had the highest degree of differentiation (0.1958), while QX and PZ had the lowest (0.0748). In conclusion, we found differences in population structure among breeds, providing a basis for conserving genetic diversity and improving pig breeds.

Indexed as

conservationdomestic pig breedsgenetic diversitypopulation structure

Identifiers

PMID40941405
PMCPMC12427273

What Socratic 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 Socratic graph.