Genetic characterization and selection of litter size traits of Guizhou Black goat and Meigu goat.

The aim of this study is to explore the genetic characteristics of Guizhou Black goats and Meigu goats and their relationship to reproductive performance through population structure analysis, genetic diversity assessment, and selection signal analysis. Blood samples of 19 Guizhou Black goats and 11...

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Main Authors: Yanpin Zhao, Yong Han, Yang Yang, Chao Yuan, Yong Long, Wen Xiao
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2024-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0313297
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author Yanpin Zhao
Yong Han
Yang Yang
Chao Yuan
Yong Long
Wen Xiao
author_facet Yanpin Zhao
Yong Han
Yang Yang
Chao Yuan
Yong Long
Wen Xiao
author_sort Yanpin Zhao
collection DOAJ
description The aim of this study is to explore the genetic characteristics of Guizhou Black goats and Meigu goats and their relationship to reproductive performance through population structure analysis, genetic diversity assessment, and selection signal analysis. Blood samples of 19 Guizhou Black goats and 11 Meigu goats were collected for whole-genome high-throughput sequencing. Using PCA and ADMIXTURE analyses, their population structure and genetic relationships were revealed. Further genetic diversity analysis showed that although there is significant population differentiation, the levels of genetic diversity are similar. Subsequently, these goats were categorized into high-yield and low-yield groups based on their litter sizes, with 15 goats in each group. Then, a selection signal analysis was performed using FST and π ratios for 33,563 SNP loci. The results identified six candidate genes, including KCNIP4, GFRA2, and DGKH, which are significantly associated with high litter performance. These findings enhanced our understanding of the genetic characteristics and population structure of Guizhou Black goats and Meigu goats. Moreover, they provide an important theoretical foundation and scientific basis for further breeding improvements.
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spelling doaj-art-b45b3f69884b4bc0be872744aba026fe2025-08-20T02:58:11ZengPublic Library of Science (PLoS)PLoS ONE1932-62032024-01-011911e031329710.1371/journal.pone.0313297Genetic characterization and selection of litter size traits of Guizhou Black goat and Meigu goat.Yanpin ZhaoYong HanYang YangChao YuanYong LongWen XiaoThe aim of this study is to explore the genetic characteristics of Guizhou Black goats and Meigu goats and their relationship to reproductive performance through population structure analysis, genetic diversity assessment, and selection signal analysis. Blood samples of 19 Guizhou Black goats and 11 Meigu goats were collected for whole-genome high-throughput sequencing. Using PCA and ADMIXTURE analyses, their population structure and genetic relationships were revealed. Further genetic diversity analysis showed that although there is significant population differentiation, the levels of genetic diversity are similar. Subsequently, these goats were categorized into high-yield and low-yield groups based on their litter sizes, with 15 goats in each group. Then, a selection signal analysis was performed using FST and π ratios for 33,563 SNP loci. The results identified six candidate genes, including KCNIP4, GFRA2, and DGKH, which are significantly associated with high litter performance. These findings enhanced our understanding of the genetic characteristics and population structure of Guizhou Black goats and Meigu goats. Moreover, they provide an important theoretical foundation and scientific basis for further breeding improvements.https://doi.org/10.1371/journal.pone.0313297
spellingShingle Yanpin Zhao
Yong Han
Yang Yang
Chao Yuan
Yong Long
Wen Xiao
Genetic characterization and selection of litter size traits of Guizhou Black goat and Meigu goat.
PLoS ONE
title Genetic characterization and selection of litter size traits of Guizhou Black goat and Meigu goat.
title_full Genetic characterization and selection of litter size traits of Guizhou Black goat and Meigu goat.
title_fullStr Genetic characterization and selection of litter size traits of Guizhou Black goat and Meigu goat.
title_full_unstemmed Genetic characterization and selection of litter size traits of Guizhou Black goat and Meigu goat.
title_short Genetic characterization and selection of litter size traits of Guizhou Black goat and Meigu goat.
title_sort genetic characterization and selection of litter size traits of guizhou black goat and meigu goat
url https://doi.org/10.1371/journal.pone.0313297
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