{"title":"A genome-wide association study reveals fetal genetic factor for gestation length on chromosome 21 in Japanese Black cattle","authors":"Marina Kurose-Iwanaga, Eiji Muraki, Shinji Sasaki","doi":"10.1111/asj.14006","DOIUrl":null,"url":null,"abstract":"<p>Gestation length (GL) in cattle is associated with neonatal health and the subsequent reproductive performance of dams. We performed a genome-wide association study (GWAS) using 25,144 single nucleotide polymorphisms (SNPs) in 4373 animals to detect genetic variants associated with GL as a fetal trait in Japanese Black cattle in Gifu Prefecture. We identified four significant SNPs on chromosome 21 in moderate linkage disequilibrium (LD). The minor allele of the most significant SNP has the effect on −2.47 days GL with a 0.019 allele frequency. Of the 4373 animals, 140 heterozygotes and one homozygote with the minor allele were traced back to a heterozygous sire. The 7.2 Mb LD region harbors three genes: <i>gamma-aminobutyric acid type A receptor subunit beta3</i> (<i>GABRB3</i>), <i>arrestin domain containing 4</i> (<i>ARRDC4</i>), and <i>nuclear receptor subfamily 2 group F member 2</i> (<i>NR2F2</i>, also known as <i>COUP-TFII</i>). RNA expression analysis and its functions suggest that GABRB3, ARRDC4, and NR2F2 (COUP-TFII) are involved in glucose production via the hypothalamic–pituitary–adrenal axis during the fetal stress response at gestation period termination. These results suggest that an increase in the allele frequency of the associated SNPs has an impact on genetic improvement by shortening the GL in the population.</p>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Animal Science Journal","FirstCategoryId":"97","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/asj.14006","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"AGRICULTURE, DAIRY & ANIMAL SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
Gestation length (GL) in cattle is associated with neonatal health and the subsequent reproductive performance of dams. We performed a genome-wide association study (GWAS) using 25,144 single nucleotide polymorphisms (SNPs) in 4373 animals to detect genetic variants associated with GL as a fetal trait in Japanese Black cattle in Gifu Prefecture. We identified four significant SNPs on chromosome 21 in moderate linkage disequilibrium (LD). The minor allele of the most significant SNP has the effect on −2.47 days GL with a 0.019 allele frequency. Of the 4373 animals, 140 heterozygotes and one homozygote with the minor allele were traced back to a heterozygous sire. The 7.2 Mb LD region harbors three genes: gamma-aminobutyric acid type A receptor subunit beta3 (GABRB3), arrestin domain containing 4 (ARRDC4), and nuclear receptor subfamily 2 group F member 2 (NR2F2, also known as COUP-TFII). RNA expression analysis and its functions suggest that GABRB3, ARRDC4, and NR2F2 (COUP-TFII) are involved in glucose production via the hypothalamic–pituitary–adrenal axis during the fetal stress response at gestation period termination. These results suggest that an increase in the allele frequency of the associated SNPs has an impact on genetic improvement by shortening the GL in the population.
期刊介绍:
Animal Science Journal (a continuation of Animal Science and Technology) is the official journal of the Japanese Society of Animal Science (JSAS) and publishes Original Research Articles (full papers and rapid communications) in English in all fields of animal and poultry science: genetics and breeding, genetic engineering, reproduction, embryo manipulation, nutrition, feeds and feeding, physiology, anatomy, environment and behavior, animal products (milk, meat, eggs and their by-products) and their processing, and livestock economics. Animal Science Journal will invite Review Articles in consultations with Editors. Submission to the Journal is open to those who are interested in animal science.