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Research article2020Peer reviewedOpen access

Signatures of selection reveal candidate genes involved in economic traits and cold acclimation in five Swedish cattle breeds

Ghoreishifar, Seyed Mohammad; Eriksson, Susanne; Johansson, Anna; Khansefid, Majid ; Moghaddaszadeh-Ahrabi, Sima; Parna, Nahid; Davoudi, Pourya; Javanmard, Arash


Background Thousands of years of natural and artificial selection have resulted in indigenous cattle breeds that are well-adapted to the environmental challenges of their local habitat and thereby are considered as valuable genetic resources. Understanding the genetic background of such adaptation processes can help us design effective breeding objectives to preserve local breeds and improve commercial cattle. To identify regions under putative selection, GGP HD 150 K single nucleotide polymorphism (SNP) arrays were used to genotype 106 individuals representing five Swedish breeds i.e. native to different regions and covering areas with a subarctic cold climate in the north and mountainous west, to those with a continental climate in the more densely populated south regions. Results Five statistics were incorporated within a framework, known as de-correlated composite of multiple signals (DCMS) to detect signatures of selection. The obtainedp-values were adjusted for multiple testing (FDR < 5%), and significant genomic regions were identified. Annotation of genes in these regions revealed various verified and novel candidate genes that are associated with a diverse range of traits, including e.g. high altitude adaptation and response to hypoxia (DCAF8,PPP1R12A,SLC16A3,UCP2,UCP3,TIGAR), cold acclimation (AQP3,AQP7,HSPB8), body size and stature (PLAG1,KCNA6,NDUFA9,AKAP3,C5H12orf4,RAD51AP1,FGF6,TIGAR,CCND2,CSMD3), resistance to disease and bacterial infection (CHI3L2,GBP6,PPFIBP1,REP15,CYP4F2,TIGD2,PYURF,SLC10A2,FCHSD2,ARHGEF17,RELT,PRDM2,KDM5B), reproduction (PPP1R12A, ZFP36L2,CSPP1), milk yield and components (NPC1L1,NUDCD3,ACSS1,FCHSD2), growth and feed efficiency (TMEM68,TGS1,LYN,XKR4,FOXA2,GBP2,GBP5,FGD6), and polled phenotype (URB1,EVA1C). Conclusions We identified genomic regions that may provide background knowledge to understand the mechanisms that are involved in economic traits and adaptation to cold climate in cattle. Incorporatingp-values of different statistics in a single DCMS framework may help select and prioritize candidate genes for further analyses.

Published in

Genetics Selection Evolution
2020, Volume: 52, number: 1, article number: 52

    Sustainable Development Goals

    SDG2 Zero hunger

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    Animal and Dairy Science

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