Pregled bibliografske jedinice broj: 227474
QUANTITATIVE INHERITANCE OF THE COAT GREYING PROCESS IN HORSE
QUANTITATIVE INHERITANCE OF THE COAT GREYING PROCESS IN HORSE // Final programme and book of abstracts Croatian genetic society / Franekić Čolić, Jasna ; Ugarković, Đurđica (ur.).
Zagreb: Ministry of acience, education and sports of the Republic of Croatia, 2005. (predavanje, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 227474 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
QUANTITATIVE INHERITANCE OF THE COAT GREYING PROCESS IN HORSE
Autori
Čurik, Ino ; Seltenhammer, Monika ; Toth, Zsuzsana ; Niebauer, Gerhard ; Kapš, Miroslav ; Sölkner, Johann
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Final programme and book of abstracts Croatian genetic society
/ Franekić Čolić, Jasna ; Ugarković, Đurđica - Zagreb : Ministry of acience, education and sports of the Republic of Croatia, 2005
Skup
Second congress of Croatian geneticists
Mjesto i datum
Supetar, Hrvatska, 24.09.2005. - 27.09.2005
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
The coat greying process in horse; Quantitative inheritance
Sažetak
The quantitative inheritance of grey level was analyzed in 852 Lipizzan horses born in six state studs (Austria, Bosnia and Herzegovina, Croatia, Hungary, Slovakia and Slovenia). A total of 1612 measurements (one to four per horse) of coat grey level, defined as L* parameter of the CIE L*a*b system, were taken by Minolta Chromameter CR210 during a period of four years. Considering the greying dynamics (Richards growth equation) and variance heterogeneity, eight data sets were formed: a) horses younger than six years (434), b) horses older than seven years (483) and c) horses younger than eight years (536) as well as d) horses older than four years (636), e) horses older than six years (492), f) horses older than nine years (346) and g) all horses (852). We estimated heritabilities for all data sets and genetic correlations between young (< six years, 434) and old (> nine years, 346) horses by REML animal models with repeated records. Estimated heritabilities for young horses ranged from 0.77 (< six years) to 0.70 (< eight years) and were higher than in old horses where they ranged from 0.58 (> four years) to 0.42 (>seven years) or to 0.37 (all horses). Genetic correlation between young and old horses was 0.46 indicting large portion of the same genes (polygenic component) influence greying processes during the whole life. The obtained estimates demonstrate that the speed and level of greying involve a very large heritable component. Genetic relationships with melanoma, vitiligo and speckling are currently investigated.
Izvorni jezik
Engleski
Znanstvena područja
Biologija, Poljoprivreda (agronomija), Biotehnologija
