Genomic Regions Associated with the Position and Number of Hair Whorls in Horses.
Abstract: The position and number of hair whorls have been associated with the behavior, temperament, and laterality of horses. The easy observation of whorls assists in the prediction of reactivity, and thus permits the development of better measures of handling, training, mounting, and riding horses. However, little is known about the genetics involved in the formation of hair whorls. Therefore, the aim of this study was to perform a genome-wide association analysis to identify chromosome regions and candidate genes associated with hair whorl traits. Data from 342 Quarter Horses genotyped for approximately 53,000 SNPs were used in an association study using a single-step procedure. The following traits were analyzed: vertical position of hair whorl on the head, number of whorls on the head, and number of whorls on the left and right sides of the neck. The traits had between one and three genomic windows associated. Each of them explained at least 4% of the additive variance. The windows accounted for 20-80% of additive variance for each trait analyzed. Many of the prospected genes are related to hair follicle growth. Some of these genes exert a pleiotropic effect on neurological and behavioral traits. This is the first indication of biological and physiological activity that might explain the association of hair whorls and temperament.
Publication Date: 2021-10-10 PubMed ID: 34679946PubMed Central: PMC8532986DOI: 10.3390/ani11102925Google Scholar: Lookup
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Summary
This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.
The research paper primarily focuses on identifying the genomic regions and genes associated with the position and number of hair whorls in horses. The findings of this study suggest a possible link between certain physical characteristics in horses (like the location and number of hair whorls) and their behavior, temperament and laterality.
Objective of the Research
- The study aims to enhance our understanding of the genetics behind the formation of hair whorls in horses. There’s a particular interest in this area due to its potential to predict horses’ reactivity, thus improving approaches to handling, training, mounting, and riding horses.
Research Methodology
- The researchers conducted a genome-wide association analysis with data from 342 Quarter Horses. These horses were genotyped for nearly 53,000 single nucleotide polymorphisms (SNPs), variations at a single position in a DNA sequence among individuals.
- Various traits of the horses related to hair whorls (such as the vertical position of the hair whorl on the head, the number of whorls on the head, and the number of whorls on the left and right sides of the neck) were analyzed.
Findings of the Research
- The traits had between one and three genomic windows associated with each of them. These windows explained at least 4% of the additive variance. Additionally, the windows accounted for 20-80% of additive variance for each trait that was analyzed.
- Several genes related to hair follicle growth were identified. Some of these genes have a pleiotropic effect on neurological and behavioral traits. Therefore, these genes offer the first biological and physiological explanation that might explain the association of hair whorls with horse temperament.
Cite This Article
APA
Lima DFPA, da Cruz VAR, Pereira GL, Curi RA, Costa RB, de Camargo GMF.
(2021).
Genomic Regions Associated with the Position and Number of Hair Whorls in Horses.
Animals (Basel), 11(10), 2925.
https://doi.org/10.3390/ani11102925 Publication
Researcher Affiliations
- Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia (UFBA), Salvador 40170-110, BA, Brazil.
- Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia (UFBA), Salvador 40170-110, BA, Brazil.
- Departamento de Melhoramento e Nutrição Animal, Universidade Estadual Paulista (Unesp), Botucatu 18618-681, SP, Brazil.
- Departamento de Melhoramento e Nutrição Animal, Universidade Estadual Paulista (Unesp), Botucatu 18618-681, SP, Brazil.
- Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia (UFBA), Salvador 40170-110, BA, Brazil.
- Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia (UFBA), Salvador 40170-110, BA, Brazil.
Grant Funding
- 2014/20207-1 / Su00e3o Paulo Research Foundation
Conflict of Interest Statement
The authors declare that there are no conflict of interest.
References
This article includes 58 references
- ABQM–Associação Brasileira de Criadores de Cavalo Quarto de MilhA. Quarto de Milha: O Cavalo da Família Brasileira. Cartilha ABQM, 2016.
- Wickens C, Brooks SA. Genetics of Equine Behavioral Traits.. Vet Clin North Am Equine Pract 2020 Aug;36(2):411-424.
- Randle HD. Facial hair whorl position and temperament in cattle. Appl. Anim. Behav. Sci. 1998;56:139–147.
- Górecka A, Golonka M, Chruszczewski M, Jezierski T. A note on behaviour and heart rate in horses differing in facial hair whorl. Appl. Anim. Behav. Sci. 2007;105:244–248.
- Murphy J, Arkins S. Facial hair whorls (trichoglyphs) and the incidence of motor laterality in the horse.. Behav Processes 2008 Sep;79(1):7-12.
- Shivley C, Grandin T, Deesing M. Behavioral laterality and facial hair whorls in horses. J. Equine Vet. Sci. 2016;44:62–66.
- Furdon SA, Clark DA. Scalp hair characteristics in the newborn infant.. Adv Neonatal Care 2003 Dec;3(6):286-96.
- Górecka A, Słoniewski K, Golonka M, Jaworski Z, Jezierski T. Heritability of hair whorl position on the forehead in Konik horses.. J Anim Breed Genet 2006 Dec;123(6):396-8.
- Yokomori T, Tozaki T, Mita H, Miyake T, Kakoi H, Kobayashi Y, Kusano K, Itou T. Heritability estimates of the position and number of facial hair whorls in Thoroughbred horses.. BMC Res Notes 2019 Jun 18;12(1):346.
- Cruz VAR, Lima DFP A, Diaz IPS, Curi RA, Pereira GL, Costa RB, de Camargo GMF. Genetic parameters for hair whorl traits in horses. Livest. Sci. 2021;252:104679.
- Pereira GL, Chud TC, Bernardes PA, Venturini GC, Chardulo LA, Curi RA. Genotype imputation and accuracy evaluation in racing quarter horses genotyped using different commercial SNP panels. J. Equine Vet. Sci. 2017;58:89–96.
- Tsuruta S, Misztal I. THRGIBBS1F90 for estimation of variance components with threshold-linear models. Commun. 27–31; Proceedings of the 8th World Congress on Genetics Applied to Livestock Production; Belo Horizonte, Brazil. 13–18 August 2006.
- Irano N, de Camargo GM, Costa RB, Terakado AP, Magalhães AF, Silva RM, Dias MM, Bignardi AB, Baldi F, Carvalheiro R, de Oliveira HN, de Albuquerque LG. Genome-Wide Association Study for Indicator Traits of Sexual Precocity in Nellore Cattle.. PLoS One 2016;11(8):e0159502.
- Sur I, Undén AB, Toftgård R. Human Krüppel-like factor5/KLF5: synergy with NF-kappaB/Rel factors and expression in human skin and hair follicles.. Eur J Cell Biol 2002 Jun;81(6):323-34.
- Yanagi M, Hashimoto T, Kitamura N, Fukutake M, Komure O, Nishiguchi N, Kawamata T, Maeda K, Shirakawa O. Expression of Kruppel-like factor 5 gene in human brain and association of the gene with the susceptibility to schizophrenia.. Schizophr Res 2008 Mar;100(1-3):291-301.
- Jabbari A, Petukhova L, Cabral RM, Clynes R, Christiano AM. Genetic basis of alopecia areata: a roadmap for translational research.. Dermatol Clin 2013 Jan;31(1):109-17.
- Al-Naseri MAS, Ad’hiah AH, Salman ED. The association between multiple sclerosis and genetic variations of TGFβ1 and IL2 genes in Iraqi patients. Meta Gene 2019;19:253–257.
- Tan B, Yatim SMJM, Peng S, Gunaratne J, Hunziker W, Ludwig A. The Mammalian Crumbs Complex Defines a Distinct Polarity Domain Apical of Epithelial Tight Junctions.. Curr Biol 2020 Jul 20;30(14):2791-2804.e6.
- Liu J, Xu Y, Wu Q, Ding Q, Fan W. Sirtuin‑1 protects hair follicle stem cells from TNFα-mediated inflammatory stress via activating the MAPK-ERK-Mfn2 pathway.. Life Sci 2018 Nov 1;212:213-224.
- Kim J, Kim MM. The effect of emodin on melanogenesis through the modulation of ERK and MITF signaling pathway.. Nat Prod Res 2022 Feb;36(4):1084-1088.
- Wang D, Tang W, Zhao J, Fan W, Zhang Y, Zhang C. A Comprehensive Analysis of the Effect of SIRT1 Variation on the Risk of Schizophrenia and Depressive Symptoms.. Front Genet 2020;11:832.
- Gnedeva K, Vorotelyak E, Cimadamore F, Cattarossi G, Giusto E, Terskikh VV, Terskikh AV. Derivation of hair-inducing cell from human pluripotent stem cells.. PLoS One 2015;10(1):e0116892.
- Numakawa T, Ishimoto T, Suzuki S, Numakawa Y, Adachi N, Matsumoto T, Yokomaku D, Koshimizu H, Fujimori KE, Hashimoto R, Taguchi T, Kunugi H. Neuronal roles of the integrin-associated protein (IAP/CD47) in developing cortical neurons.. J Biol Chem 2004 Oct 8;279(41):43245-53.
- Zhao S, Yu Z, Liu Y, Bai Y, Jiang Y, van Leyen K, Yang YG, Lok JM, Whalen MJ, Lo EH, Wang X. CD47 deficiency improves neurological outcomes of traumatic brain injury in mice.. Neurosci Lett 2017 Mar 16;643:125-130.
- Zaki AKA, Almundarij TI, Abo-Aziza FAM. Comparative characterization and osteogenic / adipogenic differentiation of mesenchymal stem cells derived from male rat hair follicles and bone marrow.. Cell Regen 2020 Aug 11;9(1):13.
- Chamera K, Szuster-Głuszczak M, Trojan E, Basta-Kaim A. Maternal Immune Activation Sensitizes Male Offspring Rats to Lipopolysaccharide-Induced Microglial Deficits Involving the Dysfunction of CD200-CD200R and CX3CL1-CX3CR1 Systems.. Cells 2020 Jul 12;9(7).
- Rao JS, Kim HW, Kellom M, Greenstein D, Chen M, Kraft AD, Harry GJ, Rapoport SI, Basselin M. Increased neuroinflammatory and arachidonic acid cascade markers, and reduced synaptic proteins, in brain of HIV-1 transgenic rats.. J Neuroinflammation 2011 Aug 16;8:101.
- Everts HB, Sundberg JP, King LE Jr, Ong DE. Immunolocalization of enzymes, binding proteins, and receptors sufficient for retinoic acid synthesis and signaling during the hair cycle.. J Invest Dermatol 2007 Jul;127(7):1593-604.
- Grünblatt E, Ruder J, Monoranu CM, Riederer P, Youdim MB, Mandel SA. Differential Alterations in Metabolism and Proteolysis-Related Proteins in Human Parkinson's Disease Substantia Nigra.. Neurotox Res 2018 Apr;33(3):560-568.
- Murata M, Ito T, Tanaka Y, Kaku-Ito Y, Furue M. NECTIN4 Expression in Extramammary Paget's Disease: Implication of a New Therapeutic Target.. Int J Mol Sci 2020 Aug 16;21(16).
- Shah K, Mehmood S, Jan A, Abbe I, Hussain Ali R, Khan A, Chishti MS, Lee K, Ahmad F, Ansar M, Shahzad S, Nickerson DA, Bamshad MJ, Coucke PJ, Santos-Cortez RLP, Spritz RA, Leal SM, Ahmad W. Sequence variants in nine different genes underlying rare skin disorders in 10 consanguineous families.. Int J Dermatol 2017 Dec;56(12):1406-1413.
- Cho WK, Kim HI, Paek SH, Kim SY, Hyun Seo H, Song J, Lee OH, Min J, Lee SJ, Jo Y, Choi H, Lee JH, Moh SH. Gene expression profile of human follicle dermal papilla cells in response to Camellia japonica phytoplacenta extract.. FEBS Open Bio 2021 Mar;11(3):633-651.
- Nishimori N, Hayama K, Kimura K, Fujita H, Fujiwara K, Terui T. A Novel NCSTN Gene Mutation in a Japanese Family with Hidradenitis Suppurativa.. Acta Derm Venereol 2020 Oct 6;100(17):adv00283.
- Wang B, Liu F, Liu Z, Han X, Lian A, Zhang Y, Zuo K, Wang Y, Liu M, Zou F, Jiang Y, Jin M, Liu X, Liu J. Internalization of the TAT-PBX1 fusion protein significantly enhances the proliferation of human hair follicle-derived mesenchymal stem cells and delays their senescence.. Biotechnol Lett 2020 Oct;42(10):1877-1885.
- Cetera M, Leybova L, Woo FW, Deans M, Devenport D. Planar cell polarity-dependent and independent functions in the emergence of tissue-scale hair follicle patterns.. Dev Biol 2017 Aug 1;428(1):188-203.
- Herrera-Rivero M, Elena Hernández-Aguilar M, Emiliano Aranda-Abreu G. A strategy focused on MAPT, APP, NCSTN and BACE1 to build blood classifiers for Alzheimer's disease.. J Theor Biol 2015 Jul 7;376:32-8.
- Grebbin BM, Hau AC, Groß A, Anders-Maurer M, Schramm J, Koss M, Wille C, Mittelbronn M, Selleri L, Schulte D. Pbx1 is required for adult subventricular zone neurogenesis.. Development 2016 Jul 1;143(13):2281-91.
- Wang M, Zhang Y, Feng L, Zheng J, Fan S, Liu J, Yang N, Liu Y, Zuo P. Compound porcine cerebroside and ganglioside injection attenuates cerebral ischemia-reperfusion injury in rats by targeting multiple cellular processes.. Neuropsychiatr Dis Treat 2017;13:927-935.
- Dos-Santos Carvalho S, Moreau MM, Hien YE, Garcia M, Aubailly N, Henderson DJ, Studer V, Sans N, Thoumine O, Montcouquiol M. Vangl2 acts at the interface between actin and N-cadherin to modulate mammalian neuronal outgrowth.. Elife 2020 Jan 7;9.
- Xu Z, He X, Shi X, Xia Y, Liu X, Wu H, Li P, Zhang H, Yin W, Du X, Li L, Li Y. Analysis of differentially expressed genes among human hair follicle-derived iPSCs, induced hepatocyte-like cells, and primary hepatocytes.. Stem Cell Res Ther 2018 Aug 9;9(1):211.
- Hardman JA, Haslam IS, Farjo N, Farjo B, Paus R. Thyroxine differentially modulates the peripheral clock: lessons from the human hair follicle.. PLoS One 2015;10(3):e0121878.
- Sugiura K, Akiyama M. Update on autosomal recessive congenital ichthyosis: mRNA analysis using hair samples is a powerful tool for genetic diagnosis.. J Dermatol Sci 2015 Jul;79(1):4-9.
- Millar SE, Willert K, Salinas PC, Roelink H, Nusse R, Sussman DJ, Barsh GS. WNT signaling in the control of hair growth and structure.. Dev Biol 1999 Mar 1;207(1):133-49.
- Clements SE, Techanukul T, Lai-Cheong JE, Mee JB, South AP, Pourreyron C, Burrows NP, Mellerio JE, McGrath JA. Mutations in AEC syndrome skin reveal a role for p63 in basement membrane adhesion, skin barrier integrity and hair follicle biology.. Br J Dermatol 2012 Jul;167(1):134-44.
- Kozicka K, Łukasik A, Pastuszczak M, Jaworek A, Spałkowska M, Kłosowicz A, Dyduch G, Wojas-Pelc A. Is hormone testing worthwhile in patients with female pattern hair loss?. Pol Merkur Lekarski 2020 Oct 23;48(287):323-326.
- Kim SN, Akindehin S, Kwon HJ, Son YH, Saha A, Jung YS, Seong JK, Lim KM, Sung JH, Maddipati KR, Lee YH. Anti-inflammatory role of 15-lipoxygenase contributes to the maintenance of skin integrity in mice.. Sci Rep 2018 Jun 11;8(1):8856.
- Tong T, Kim N, Park T. Topical Application of Oleuropein Induces Anagen Hair Growth in Telogen Mouse Skin.. PLoS One 2015;10(6):e0129578.
- López-Olmeda JF, Tartaglione EV, de la Iglesia HO, Sánchez-Vázquez FJ. Feeding entrainment of food-anticipatory activity and per1 expression in the brain and liver of zebrafish under different lighting and feeding conditions.. Chronobiol Int 2010 Aug;27(7):1380-400.
- del Mar Grasa M, Villarreal L, Granero R, Vilà R, Penelo E, Agüera Z, Jiménez-Murcia S, del Mar Romero M, Menchón JM, Remesar X, Fernández-Aranda F, Alemany M. Purging behavior modulates the relationships of hormonal and behavioral parameters in women with eating disorders.. Neuropsychobiology 2013;67(4):230-40.
- Takayanagi Y, Spira AP, McIntyre RS, Eaton WW. Sex hormone binding globulin and verbal memory in older men.. Am J Geriatr Psychiatry 2015 Mar;23(3):253-60.
- Inkster B, Nichols TE, Saemann PG, Auer DP, Holsboer F, Muglia P, Matthews PM. Pathway-based approaches to imaging genetics association studies: Wnt signaling, GSK3beta substrates and major depression.. Neuroimage 2010 Nov 15;53(3):908-17.
- Nakrieko KA, Welch I, Dupuis H, Bryce D, Pajak A, St Arnaud R, Dedhar S, D'Souza SJ, Dagnino L. Impaired hair follicle morphogenesis and polarized keratinocyte movement upon conditional inactivation of integrin-linked kinase in the epidermis.. Mol Biol Cell 2008 Apr;19(4):1462-73.
- Joost S, Annusver K, Jacob T, Sun X, Dalessandri T, Sivan U, Sequeira I, Sandberg R, Kasper M. The Molecular Anatomy of Mouse Skin during Hair Growth and Rest.. Cell Stem Cell 2020 Mar 5;26(3):441-457.e7.
- Mori S, Yoshizuka N, Takizawa M, Takema Y, Murase T, Tokimitsu I, Saito M. Expression of uncoupling proteins in human skin and skin-derived cells.. J Invest Dermatol 2008 Aug;128(8):1894-900.
- Wang E, Chong K, Yu M, Akhoundsadegh N, Granville DJ, Shapiro J, McElwee KJ. Development of autoimmune hair loss disease alopecia areata is associated with cardiac dysfunction in C3H/HeJ mice.. PLoS One 2013;8(4):e62935.
- Lin X, Meng G, Liu X, Yu T, Bai C, Fei X, Deng S, Zhao J, Ren S, Zhang J, Wu Z, Wang S, Zhang J, Zhang L. The Differentially Expressed Genes of Human Sporadic Cerebral Cavernous Malformations.. World Neurosurg 2018 May;113:e247-e270.
- Gigante AD, Andreazza AC, Lafer B, Yatham LN, Beasley CL, Young LT. Decreased mRNA expression of uncoupling protein 2, a mitochondrial proton transporter, in post-mortem prefrontal cortex from patients with bipolar disorder and schizophrenia.. Neurosci Lett 2011 Nov 7;505(1):47-51.
- Wang B, Zheng Y, Shi H, Du X, Zhang Y, Wei B, Luo M, Wang H, Wu X, Hua X, Sun M, Xu X. Zfp462 deficiency causes anxiety-like behaviors with excessive self-grooming in mice.. Genes Brain Behav 2017 Feb;16(2):296-307.
Citations
This article has been cited 6 times.- Colpitts J, McLoughlin PD, Poissant J. Runs of homozygosity in Sable Island feral horses reveal the genomic consequences of inbreeding and divergence from domestic breeds. BMC Genomics 2022 Jul 12;23(1):501.
- Araujo AC, Carneiro PLS, Alvarenga AB, Oliveira HR, Miller SP, Retallick K, Brito LF. Haplotype-Based Single-Step GWAS for Yearling Temperament in American Angus Cattle. Genes (Basel) 2021 Dec 22;13(1).
- Yokomori T, Tozaki T, Segawa T, Itou T. Genomic regions and candidate genes associated with forehead whorl positioning in Thoroughbred horses. J Equine Sci 2025;36(1):11-18.
- Jiang W, Yang X, Zhu L, Yang Y, Liu C, Du Y, Wang Y, Niu L, Zhao Y, Liu Y, Gan M, Shen L, Zhu L. Genome-Wide Association Studies of Hair Whorl in Pigs. Genes (Basel) 2024 Sep 25;15(10).
- Encina A, Ligero M, Sánchez-Guerrero MJ, Rodríguez-Sainz de Los Terreros A, Bartolomé E, Valera M. Phenotypic and Genetic Study of the Presence of Hair Whorls in Pura Raza Español Horses. Animals (Basel) 2023 Sep 16;13(18).
- Saif R, Mahmood T, Zia S, Henkel J, Ejaz A. Genomic selection pressure discovery using site-frequency spectrum and reduced local variability statistics in Pakistani Dera-Din-Panah goat. Trop Anim Health Prod 2023 Sep 26;55(5):331.
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