Genetics and Breeding in Ruminants

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Animal Genetics and Genomics".

Deadline for manuscript submissions: 10 February 2025 | Viewed by 471

Special Issue Editor


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Guest Editor
College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
Interests: biotechnology; animal breeding

Special Issue Information

Dear Colleagues,

Ruminants provide meat, milk, wool, and skins, indicating strong economic and ecological value worldwide. When preparing to meet the demand for high-quality livestock products, it is essential to breed animals with desired production characteristics, such as enhanced milk yield, and to develop more potential and productive livestock. Genetics and breeding in ruminants are crucial areas in animal husbandry, involving how to utilize animal genetic resources to improve variety and increase yield and quality, as well as how to effectively manage the breeding process to achieve expected goals. Genetics and modern technological means can improve key functional traits, which opens up new possibilities for genetics studies and breeding programs. The scientific practice of genetics and breeding can improve the production efficiency of ruminant husbandry and protect and inherit precious genetic resources.

We invite original research papers and review articles on genetic improvement, breeding management, reproductive physiology, conservation of genetic diversity, and genetic variability of traits related to the milking ability of dairy ruminants such as cows and dairy goats.

Prof. Dr. Huaiping Shi
Guest Editor

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Keywords

  • ruminants
  • genetics
  • variety improvement
  • reproductive physiology
  • genetic diversity
  • genetic variability
  • product quality

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Published Papers (1 paper)

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Research

18 pages, 3790 KiB  
Article
Genome-Wide Association Analyses and Population Verification Highlight the Potential Genetic Basis of Horned Morphology during Polled Selection in Tibetan Sheep
by Dehong Tian, Zian Zhang, Bin Huang, Buying Han, Xue Li and Kai Zhao
Animals 2024, 14(15), 2152; https://doi.org/10.3390/ani14152152 - 24 Jul 2024
Viewed by 364
Abstract
The types and morphology of sheep horns have been extensively researched, yet the genetic foundation underlying the emergence of diverse horn characteristics during the breeding of polled Tibetan sheep has remained elusive. Genome-wide association analysis (GWAS) was performed on 103 subtypes (normal large [...] Read more.
The types and morphology of sheep horns have been extensively researched, yet the genetic foundation underlying the emergence of diverse horn characteristics during the breeding of polled Tibetan sheep has remained elusive. Genome-wide association analysis (GWAS) was performed on 103 subtypes (normal large horn, scurs, and polled) differentiated from G2 (offspring (G2) of parent (G1) of polled) of the polled core herd. Six single nucleotide polymorphisms (SNPs) located on chromosome 10 of the relaxin family peptide receptor 2 (RXFP2) gene exhibited positive correlations with horn length, horn base circumference, and horn base interval. Furthermore, in genotyping 382 G2 individuals, significant variations were observed for each specific horn type. Three additional mutations were identified near the target SNP upstream of the amplification product. Finally, the RXFP2-specific haplotype associated with the horned trait effectively maintained horn length, horn base circumference, and horn base interval in Tibetan sheep, as confirmed by population validation of nine loci in a sample size of 1125 individuals. The present study offers novel insights into the genetic differentiation of the horned type during improvement breeding and evolution, thereby establishing a robust theoretical foundation for polled Tibetan sheep breeding and providing valuable guidance for practical production. Full article
(This article belongs to the Special Issue Genetics and Breeding in Ruminants)
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