Genome wide association study of growth and feed efficiency traits in rabbits

IF 0.8 4区农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE

World Rabbit Science Pub Date : 2023-09-28 DOI:10.4995/wrs.2023.18215

Hervé Garreau, Yann Labrune, Hervé Chapuis, Julien Ruesche, Juliette Riquet, Julie Demars, Florence Benitez, François Richard, Hélène Gilbert, Laurence Drouilhet, Olivier Zemb

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Abstract

Feed efficiency is a major production trait in animal genetic breeding schemes. To further investigate the genetic control of feed efficiency in rabbits, we performed a genome-wide association study (GWAS) for growth and feed efficiency on 679 rabbits genotyped with the Affimetrix Axiom Rabbit 200K Genotyping Array. After quality control, 127 847 single-nucleotide polymorphisms (SNP) were retained for association analyses. The GWAS were performed using GEMMA software, applying a mixed univariate animal model with a linear regression on each SNP allele. The traits analysed were weight at weaning and at 63 days of age, average daily gain, total individual feed intake, feed conversion ratio and residual feed intake. No significant SNP was found for growth traits or feed intake. Fifteen genome-wide significant SNPs were detected for feed conversion ratio on OCU7, spanning from 124.8 Mbp to 126.3 Mbp, plus two isolated SNP on OCU2 (77.3 Mbp) and OCU8 (16.5 Mbp). For residual feed intake, a region on OCU18 (46.1-53.0 Mbp) was detected, which contained a putative functional candidate gene, GOT1.

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家兔生长与饲料效率性状的全基因组关联研究

饲料效率是动物遗传育种计划的主要生产性状。为了进一步研究家兔饲料效率的遗传控制，我们对679只使用affmetrix Axiom兔200K基因分型阵列进行基因分型的家兔进行了生长和饲料效率的全基因组关联研究(GWAS)。质量控制后，保留127 847个单核苷酸多态性(SNP)用于关联分析。GWAS使用GEMMA软件进行，采用混合单变量动物模型，对每个SNP等位基因进行线性回归。分析断奶和63日龄体重、平均日增重、个体总采食量、饲料系数和剩余采食量。生长性状和采食量均未发现显著的SNP。在OCU7上检测到15个全基因组显著SNP，范围从124.8 Mbp到126.3 Mbp，加上OCU2 (77.3 Mbp)和OCU8 (16.5 Mbp)上的两个分离SNP。在残采食量方面，OCU18上检测到一个区域(46.1-53.0 Mbp)，该区域含有一个假定的功能候选基因GOT1。

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来源期刊

World Rabbit Science 农林科学-奶制品与动物科学

CiteScore

1.70

自引率

25.00%

发文量

审稿时长

>36 weeks

期刊介绍： World Rabbit Science is the official journal of the World Rabbit Science Association (WRSA). One of the main objectives of the WRSA is to encourage communication and collaboration among individuals and organisations associated with rabbit production and rabbit science in general. Subject areas include breeding, genetics, production, management, environment, health, nutrition, physiology, reproduction, behaviour, welfare, immunology, molecular biology, metabolism, processing and products. World Rabbit Science is the only international peer-reviewed journal included in the ISI Thomson list dedicated to publish original research in the field of rabbit science. Papers or reviews of the literature submitted to World Rabbit Science must not have been published previously in an international refereed scientific journal. Previous presentations at a scientific meeting, field day reports or similar documents can be published in World Rabbit Science, but they will be also subjected to the peer-review process. World Rabbit Science will publish papers of international relevance including original research articles, descriptions of novel techniques, contemporaryreviews and meta-analyses. Short communications will only accepted in special cases where, in the Editor''s judgement, the contents are exceptionally exciting, novel or timely. Proceedings of rabbit scientific meetings and conference reports will be considered for special issues. World Rabbit Science is published in English four times a year in a single volume. Authors may publish in World Rabbit Science regardless of the membership in the World Rabbit Science Association, even if joining the WRSA is encouraged. Views expressed in papers published in World Rabbit Science represent the opinion of the author(s) and do not necessarily reflect the official policy of the WRSA or the Editor-in-Chief.