20.500.12556/RUL-132180 Characterisation of coat colour in the Slovenian Posavje horse Karakterizacija barve dlake pri posavskem konju Abstract Different approaches and classification systems have been established to describe equine coat colour, which varies between breeds and countries. In the present study, we first characterised the coat colour variability in the Slovenian Posavje Horse applying colour spectrophotometry following the CIE L*a*b system. As derived from the classification system of Sponenberg (light bay, bay, mahogany bay, brown and seal brown), the phenotype categories could be confirmed by spectrophotometric data. Furthermore, L*a*b values revealed comparable high phenotypic variability of bay coat colour in the Posavje breed, and the darker shades of bay coat colour were associated with the ASIP and MC1R genotype combination A/a E/E. CIE L*a*b colour spectrophotometry represents an effective tool to characterise and quantify coat colour in horses, especially in chestnut horses, for which the underlying genetic background of coat colour variation remains unknown. Page Header Open Journal Systems Journal Help User Username Password Remember me Notifications View Subscribe Journal Content Search Search Scope Browse By Issue By Author By Title Font Size Information For Readers For Authors For Librarians Home About Login Register Search Current Archives Announcements For Authors Home > Vol 58, No 2 (2021) > Grilz-Seger CHARACTERISATION OF COAT COLOUR IN THE SLOVENIAN POSAVJE HORSE Gertrud Grilz-Seger, Matjaž Mesarič, Gottfried Brem, Marko Cotman Abstract Different approaches and classification systems have been established to describe equine coat colour, which varies between breeds and countries. In the present study, we first characterised the coat colour variability in the Slovenian Posavje Horse applying colour spectrophotometry following the CIE L*a*b system. As derived from the classification system of Sponenberg (light bay, bay, mahogany bay, brown and seal brown), the phenotype categories could be confirmed by spectrophotometric data. Furthermore, L*a*b values revealed comparable high phenotypic variability of bay coat colour in the Posavje breed, and the darker shades of bay coat colour were associated with the ASIP and MC1R genotype combination A/a E/E. CIE L*a*b colour spectrophotometry represents an effective tool to characterise and quantify coat colour in horses, especially in chestnut horses, for which the underlying genetic background of coat colour variation remains unknown. Key words: Posavje Horse; MC1R; ASIP; coat colour; spectrophotometry; CIE L*a*b KARAKTERIZACIJA BARVE DLAKE PRI POSAVSKEM KONJU Izvleček: Za opis barv konj se uporabljajo različni pristopi in klasifikacijski sistemi, ki se razlikujejo med posameznimi pasmami in državami. V raziskavi smo najprej opredelili različne barve dlake pri posavskem konju z metodo barvne spektrofotometrije po sistemu CIE L*a*b*. Fenotipsko razdelitev barv dlake po Sponenbergu (light bay/svetli rjavec, bay/rjavec, mahogany bay/kostanjev, brown/temni rjavec and seal brown/črnkast rjavec) smo potrdili s spektrofotometričnimi podatki. Vrednosti L*a*b so pri posavskem konju pokazale primerljivo visoko fenotipsko variabilnost rjave barve, pri tem so bili temnejši odtenki povezani z ASIP in MC1R kombinacijo genotipa A/a E/E. Barvna spektrofotometrija po sistemu CIE L*a*b predstavlja učinkovito orodje za kvalitativno in kvantitativno opredelitev/določanje barv pri konjih, zlasti pri lisjakih, pri katerih še vedno ni znana genska osnova variabilnosti v barvi dlake. Posavje Horse MC1R ASIP coat colour spectrophotometry CIE L*a*b posavski konj MC1R ASIP barva dlake spektrofotometrija CIE L*a*b true false false Angleški jezik Slovenski jezik Članek v reviji 2021-10-15 09:29:10 2021-10-15 09:29:10 2022-09-12 04:11:23 0000-00-00 00:00:00 2021 0 0 Str. 77-84 no. 2 Vol. 58 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 636.1.022:677.3:675.046.1 1580-4003 10.26873/SVR-1091-2020 68682499 RAZ_Grilz-Seger_Gertrud_2021.pdf RAZ_Grilz-Seger_Gertrud_2021.pdf 1 D6D0F7BFAF22F26E9A9FEAFA9B7BD85B 9ebd8d9a1f56262dbc461e4b0574bfc870a651e6e6788404cd9343c9a03e9596 7fee066e-2d8a-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=149726 https://www.slovetres.si/index.php/SVR/article/view/1091 1 95dff1d5-2d89-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=149725 Veterinarska fakulteta Slovenian veterinary research 0 0 0