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Research and Publications

Research: Biomedical Genomics

Our lab focuses on studying the heredity basis of equine congenital defects and economically significant traits in domestic animals (mainly the horse); interrelationships of inbreeding, genetic polymorphism, and reproductive performance in horses; population genetics of feral horses; comparative aspects of genetics variation in horses under human selection and under natural selection; genetic aspects of captivity; genetics of domestication. Management of genetic polymorphism in small populations and conservation of rare breeds; genetic relationship among domestic horse breeds; changes in gene regulation based upon environmental factors; gene mapping of the horse.


Journal Cover

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Mutations in DMRT3 affect locomotion in horses and spinal circuit function in mice.
Andersson LS, Larhammar M, Memic F, Wootz H, Schwochow D, Rubin CJ, Patra K, Arnason T, Wellbring L, Hjälm G, Imsland F, Petersen JL, McCue ME, Mickelson JR, Cothran G, Ahituv N, Roepstorff L, Mikko S, Vallstedt A, Lindgren G, Andersson L, Kullander K.
Nature. 2012 Aug 30;488(7413):642-6. doi: 10.1038/nature11399.
PMID: 22932389

Microsatellite analysis of genetic variability in Waler horses from Australia.
A. M. Khanshour, R. Juras and E.G. Cothran.
Australian Journal of Zoology 61(5) 357-365

Selected Publications

The legend of the Canadian horse: genetic diversity and breed origin.
Khanshour A, Juras R, Blackburn R, Cothran EG.
J Hered. 2015 Jan-Feb;106(1):37-44.
PMID: 25416795

Copy number variation in the horse genome.
Ghosh S, Qu Z, Das PJ, Fang E, Juras R, Cothran EG, McDonell S, Kenney DG, Lear TL, Adelson DL, Chowdhary BP, Raudsepp T.
PLoS Genet. 2014 Oct 23;10(10):e1004712. doi: 10.1371/journal.pgen.1004712. eCollection 2014 Oct.
PMID: 25340504

Worldwide frequency distribution of the 'Gait keeper' mutation in the DMRT3 gene.
Promerová M, Andersson LS, Juras R, Penedo MC, Reissmann M, Tozaki T, Bellone R, Dunner S, Hořín P, Imsland F, Imsland P, Mikko S, Modrý D, Roed KH, Schwochow D, Vega-Pla JL, Mehrabani-Yeganeh H, Yousefi-Mashouf N, G Cothran E, Lindgren G, Andersson L.
Anim Genet. 2014 Apr;45(2):274-82. doi: 10.1111/age.12120. Epub 2014 Jan 21.
PMID: 24444049

Microsatellite analysis of genetic diversity and population structure of Arabian horse populations.
Khanshour A, Conant E, Juras R, Cothran EG.
J Hered. 2013 May-Jun;104(3):386-98. doi: 10.1093/jhered/est003. Epub 2013 Feb 28.
PMID: 23450090

Equine multiple congenital ocular anomalies and silver coat colour result from the pleiotropic effects of mutant PMEL.
Andersson LS, Wilbe M, Viluma A, Cothran G, Ekesten B, Ewart S, Lindgren G.
PLoS One. 2013 Sep 23;8(9):e75639. doi: 10.1371/journal.pone.0075639. eCollection 2013.
PMID: 24086599

A microsatellite analysis of five Colonial Spanish horse populations of the southeastern United States.
Conant EK, Juras R, Cothran EG.
Anim Genet. 2012 Feb;43(1):53-62. doi: 10.1111/j.1365-2052.2011.02210.x. Epub 2011 May 23.
PMID: 22221025

Genetic diversity and admixture among Canadian, Mountain and Moorland and Nordic pony populations.
Prystupa JM, Juras R, Cothran EG, Buchanan FC, Plante Y.
Animal. 2012 Jan;6(1):19-30. doi: 10.1017/S1751731111001212.
PMID: 22436150

Genetic diversity in the modern horse illustrated from genome-wide SNP data.
Petersen JL, Mickelson JR, Cothran EG, Andersson LS, Axelsson J, Bailey E, Bannasch D, Binns MM, Borges AS, Brama P, da Câmara Machado A, Distl O, Felicetti M, Fox-Clipsham L, Graves KT, Guérin G, Haase B, Hasegawa T, Hemmann K, Hill EW, Leeb T, Lindgren G, Lohi H, Lopes MS, McGivney BA, Mikko S, Orr N, Penedo MC, Piercy RJ, Raekallio M, Rieder S, Røed KH, Silvestrelli M, Swinburne J, Tozaki T, Vaudin M, M Wade C, McCue ME.
PLoS One. 2013;8(1):e54997. doi: 10.1371/journal.pone.0054997. Epub 2013 Jan 30.
PMID: 23383025

Maternal phylogenetic relationships and genetic variation among Arabian horse populations using whole mitochondrial DNA D-loop sequencing.
Khanshour AM, Cothran EG.
BMC Genet. 2013 Sep 13;14:83. doi: 10.1186/1471-2156-14-83.
PMID: 24034565

Targeted analysis of four breeds narrows equine Multiple Congenital Ocular Anomalies locus to 208 kilobases.
Andersson LS, Lyberg K, Cothran G, Ramsey DT, Juras R, Mikko S, Ekesten B, Ewart S, Lindgren G.
Mamm Genome. 2011 Jun;22(5-6):353-60. doi: 10.1007/s00335-011-9325-7. Epub 2011 Apr 5.
PMID: 21465164

Genetic variability in the Skyros pony and its relationship with other Greek and foreign horse breeds.
Bömcke E, Gengler N, Cothran EG.
Genet Mol Biol. 2011 Jan;34(1):68-76. doi: 10.1590/S1415-47572010005000113. Epub 2011 Mar 1.
PMID: 21637546

Genetic analysis of the Venezuelan Criollo horse.
Cothran EG, Canelon JL, Luis C, Conant E, Juras R.
Genet Mol Res. 2011 Oct 7;10(4):2394-403. doi: 10.4238/2011.October.7.1.
PMID: 22002132

Maternal lineages in native Canadian equine populations and their relationship to the Nordic and Mountain and Moorland pony breeds.
Prystupa JM, Hind P, Cothran EG, Plante Y.
J Hered. 2012 May-Jun;103(3):380-90. doi: 10.1093/jhered/ess003. Epub 2012 Apr 13.
PMID: 22504109

XX/XY Blood lymphocyte chimerism in heterosexual dizygotic twins from a American Bashkir Curly horse. Case Report.
Juras R., Raudsepp T., Das P.J., Conant E., Cothran E.G. 2010.
Case Report. Journal of Equine Veterinary Science, 30 (10): 575-580

Genetic diversity and relationships of Portuguese and other horse breeds based on protein and microsatellite loci variation.
Luís C, Juras R, Oom MM, Cothran EG.
Anim Genet. 2007 Feb;38(1):20-7.
PMID: 17257184

Inbreeding and genetic structure in the endangered Sorraia horse breed: implications for its conservation and management.
Luís C, Cothran EG, Oom Mdo M.
J Hered. 2007 May-Jun;98(3):232-7. Epub 2007 Apr 2.
PMID: 17404326

A missense mutation in PMEL17 is associated with the Silver coat color in the horse.
Brunberg E, Andersson L, Cothran G, Sandberg K, Mikko S, Lindgren G.
BMC Genet. 2006 Oct 9;7:46.
PMID: 17029645

Genetic structure and phylogenetic relationships of the Polish Heavy horse.
Iwańczyk E, Juras R, Cholewiński G, Cothran EG.
J Appl Genet. 2006;47(4):353-9.
PMID: 17132900

Limited number of patrilines in horse domestication.
Lindgren G, Backström N, Swinburne J, Hellborg L, Einarsson A, Sandberg K, Cothran G, Vilà C, Binns M, Ellegren H.
Nat Genet. 2004 Apr;36(4):335-6. Epub 2004 Mar 14.
PMID: 15034578

Genetic Analysis of Three Lithuanian Native Horse Breeds.
Rytis Juras, E. Gus Cothran & Ramutis Klimas
Acta Agriculturae Scandinavica, Section A – Animal Science Volume 53, Issue 4, 2003. Pages 180-185.
DOI: 10.1080/09064700310012971

Genetic diversity of Cheju horses (Equus caballus) determined by using mitochondrial DNA D-loop polymorphism.
Yang YH, Kim KI, Cothran EG, Flannery AR.
Biochem Genet. 2002 Jun;40(5-6):175-86.
PMID: 12137332

Rejection of MITF and MGF as the genes responsible for appaloosa coat colour patterns in horses.
Terry RB, Bailey E, Lear T, Cothran EG.
Anim Genet. 2002 Feb;33(1):82-4. No abstract available.

Genetic differentiation associated with gait within American standardbred horses.
Cothran EG, MacCluer JW, Weitkamp LR, Bailey E.
Anim Genet. 1987;18(4):285-96.
PMID: 3481678

Genetic analysis of three South African horse breeds.
Cothran EG, van Dyk E.
J S Afr Vet Assoc. 1998 Dec;69(4):120-5.
PMID: 10192084

Inbreeding and reproductive performance in standardbred horses.
Cothran EG, MacCluer JW, Weitkamp LR, Pfennig DW, Boyce AJ.
J Hered. 1984 May-Jun;75(3):220-4.
PMID: 6736603