Identifying selection signatures associated with production traits in Matou goats using whole-genome sequencing

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ID: 320187
2026
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Abstract
Investigating the genetic attributes of indigenous goat breeds is crucial for their conservation and breeding. The Matou goat, a valued native breed of Southern China, is characterized by high meat quality and reproductive efficiency, representing an important genetic resource for livestock production. Its genetic basis underlying productive traits remains unclear at the whole-genome level. Therefore, this study aimed to elucidate its genomic diversity and selection signatures with whole-genome sequencing (WGS), in order to provide a basis for its future conservation and breeding. Population structure analyses, including principal component analysis, phylogenetic tree construction, and admixture analysis, revealed that the 128 sampled individuals could be divided into two subgroups. One subgroup exhibited greater genetic diversity, as reflected by higher heterozygosity and lower inbreeding coefficients, along with a higher frequency of private alleles indicative of a more closed breeding history. The slower linkage disequilibrium decay observed in this subgroup suggests it has undergone stronger selection. By integrating Fst, XP‑CLR, and XP‑EHH analyses, we identified 215 genes within 306 candidate regions under selection. Several of these genes (ARHGAP31, CHURC1, ITGA11, and GFOD1) harbor variants that overlap with QTLs and are associated with production traits in livestock. These findings provide a basis for conservation and breeding of the Matou goat.
Reference Key
openalex_W7167684771 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Lei Cheng, Jie Yu, Hongbo Chen, Min Xiang, Wujun Yang, Chenyan Wang, Rubing Yan, Tingxian Deng, Chenhui Liu
Journal italian journal of animal science
Year 2026
DOI
10.1093/jas/skag202
URL
https://doi.org/10.1093/jas/skag202
Keywords Keywords not found

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