Polymorphism of Old Kladruber horses, a surviving but endangered baroque breed

Hořín, Petr; Cothran, E. G.; Trtková, Kateřina Smešný; Marti, Eliane; Glasnák, V.; Henney, Pamela J.; Vyskočil, M.; Lazàry, S.

doi:10.1111/j.1744-313x.1998.tb01153.x

Cited by 11 publications

(16 citation statements)

References 28 publications

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“…Differences in these frequencies were shown by different types of markers: blood types. Biochemical markers microsatellites, which were published by JAKUBEC et al (1996b) and HOŘÍN et al (1998), are shown in Table 4.…”

Section: Methodsmentioning

confidence: 99%

“…The average heterozygosity of the Old Kladrub breed was lower than the same parameter estimated by another authors using blood type and biochemical polymorphic systems: BOWLING (1994) 38.9 -40.2 % and OOM and COTHRAN (1994) 37.5 %. The average heterozygosity estimated by JAKUBEC et al (1996) and HOŘÍN et al (1998) for blood type and biochemical polymorphic systems as well as microsatellite markers is specified in table 5. HOŘÍN et al (1998) found higher values of the average heterozygosity (0.44) at blood type and biochemical loci than JAKUBEC et al (1996) (0.34).…”

Section: Polymorphism Of Blood Types Biochemical Markers and Microsamentioning

confidence: 99%

“…The average heterozygosity estimated by JAKUBEC et al (1996) and HOŘÍN et al (1998) for blood type and biochemical polymorphic systems as well as microsatellite markers is specified in table 5. HOŘÍN et al (1998) found higher values of the average heterozygosity (0.44) at blood type and biochemical loci than JAKUBEC et al (1996) (0.34). The average heterozygosity of microsatellites (0.65) was much higher than in the blood type and biochemical loci (0.34 resp.…”

Section: Polymorphism Of Blood Types Biochemical Markers and Microsamentioning

confidence: 99%

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Selection in the genetic resource: genetic variation of the linear described type traits in the Old Kladrub horse

Jakubec

Vostrý

Schlote³

et al. 2009

Arch. Anim. Breed.

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The structure of the breed in 2003 was: 39 sires and 350 dams. The breed was closed against immigration in 1992. In 1993 and 2003 coefficients of inbreeding (Fx) were calculated from 5 parental generations for sires and dams in the whole breed and white and black variety. From 1993 to 2003 decreased the Fx (%) in the breed for stallions from 5.65 to 5.57 and for mares from 7.75 to 4.88. The effective population size was in 1993 Ne=114. 00 and 2003 Ne=140.36. The increment of Ne during the 10-year period was 26.36 animals. The average heterozygosity estimated on the frequencies of blood types, biochemical markers and microsatellites was enough large and was connected with a low coefficient of inbreeding. Linear type evolutions of 494 horses of the Old Kladrub breed for 32 traits were used to analyse the effect of variety and stud. The data were used for the estimation of population parameters and heritability coefficients. The specific properties and variation of the Old Kladrub horse in its current state were characterized by the overall mean, standard deviation, coefficient of variation, number of utilized scores and heritabilities. The highest coefficient of variation showed the forelimbs-side view (40.14 %), chest girth (36.25 %) and height at withers (30.97 %). The 8 traits showed heritabilities within the interval of 0.20 to 0.68. These traits are candidates as selection criteria. Significant differences between both varieties were found in 13 from 32 traits. Significant differences were found in 12 of 32 traits between the Kladruby stud and the private studs.

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Section: Methodsmentioning

confidence: 99%

Section: Polymorphism Of Blood Types Biochemical Markers and Microsamentioning

confidence: 99%

Section: Polymorphism Of Blood Types Biochemical Markers and Microsamentioning

confidence: 99%

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Selection in the genetic resource: genetic variation of the linear described type traits in the Old Kladrub horse

Jakubec

Vostrý

Schlote³

et al. 2009

Arch. Anim. Breed.

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“…The breed is nowadays included in the genetic resources of the Czech Republic and the population has been fully closed since 2002. As the population is small (effective population size N e = 201), its genetic diversity is continuously monitored (Horin et al 1998;Jakubec et al 2009;Vostry et al 2011;Janova et al 2013). The population is bred in two coat colours -grey (6 sire lines) and black (4 sire lines).…”

Section: Introductionmentioning

confidence: 99%

Characterization of greying, melanoma, and vitiligo quantitative inheritance in Old Kladruber horses

Hofmanová¹,

Vostrý²,

Majzlík³

et al. 2015

Czech J. Anim. Sci.

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ABSTRACT:The paper deals with the greying process, melanoma, and vitiligo depigmentation occurrence in Old Kladruber horses (OKH). The study includes 376 animals of both sexes at the age of 1-25 years. The evaluation was performed repeatedly during 4 consecutive years. The greying status was measured spectrophotometrically on four body parts using L*a*b* colour system. Melanoma and vitiligo were detected visually and by palpation in all the animals and classified using 5 (3) grade scale. The GLM procedure of SAS package was used to examine the influence of the effects of line, age, sex, stud, and year of evaluation. The GLM analysis confirmed a significant impact of age on greying. Parameter L* showed progressive increase until 10 years of age when all horses reached final grey level. Subsequent analyses suggested the influence of sex, i.e. a notably higher level of greying in mares. The incidence of melanoma was confirmed. Melanoma in OKH most frequently occurs on the bottom of the tail or at the anal and perineal area. Probably only benign forms of melanoma have been detected. The global occurrence of melanoma in OKH (ca. 13%) is substantially lower than in Lipizzan and Camargue horses. Overall incidence of melanoma in horses at the age of 15 and older reached 68%. Genetic parameters were estimated for melanoma grade, grey level, and vitiligo. Greying is strictly influenced by age (h 2 = 0.52 ± 0.07). Prevalence of melanoma progresses with age (h 2 = 0.07 ± 0.04). Vitiligos of both facial and anal parts are influenced by the effects studied (h 2 = 0.20 ± 0.05 and 0.34 ± 0.06 for vitiligo A and vitiligo F, respectively).

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“…Microsatellite DNA markers, thanks to their naturally high polymorphism, can be used to analyse genetic diversity among different breeds of livestock species (Børstand et al, 2000;Canon et al, 2000;Achmann et al, 2004;Aberle et al, 2004;Solis et al, 2005;Behl et al, 2007;Bao et al, 2009;Chen et al, 2009;Kusza et al, 2009;Zrůstová et al, 2009). Molecular genetic analyses of the Old Kladruber horse using DNA polymorphism and other polymorphic systems were conducted by Hořín et al (1998). Some authors have demonstrated the use of microsatellites to show that individuals belong to a particular population or sub-population (Rannala and Mountain, 1997;Cornuet et al, 1999).…”

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confidence: 99%

Intra-line and inter-line genetic diversity in sire lines of the Old Kladruber horse based on microsatellite analysis of DNA

Vostrý¹,

Kracíková²,

Hofmanová³

et al. 2011

CZECH J ANIM SCI

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ABSTRACT:The Old Kladruber horse is the oldest original Czech horse breed -gene resource, with pedigree records spanning three centuries. Because the population is closed, there is a concern about the loss of genetic variation. The genetic diversity within and amongst sire lines was evaluated using microsatellite markers and based on pedigree information. The DNA analysis, covering 16 microsatellite loci, revealed that the genetic diversity (observed heterozygosity = 0.637, genetic diversity = 0.678 and the mean number of alleles = 8.25) for the Old Kladruber horse is consistent with other populations of horses. Inter-line genetic difference in sire lines reached the mean value (the F ST values ranged from 0.020 to 0.017). Differences amongst the sire lines were identified using genetic distances and principal component analysis. One gene cluster comprised black variation sire lines, while the second cluster included the sire lines of the grey variation. In the subjects monitored, the average inbreeding coefficient of 0.076 was estimated on the basis of pedigree information. The highest mean values of the coefficient of relationship were estimated within the colour variations. When comparing the genetic distance and the average coefficient of relationship, differences were found out. These results are useful for the development of breeding strategies which consider classical horse breeding as well as recent achievements of population and conservation genetics.

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Polymorphism of Old Kladruber horses, a surviving but endangered baroque breed

Cited by 11 publications

References 28 publications

Selection in the genetic resource: genetic variation of the linear described type traits in the Old Kladrub horse

Selection in the genetic resource: genetic variation of the linear described type traits in the Old Kladrub horse

Characterization of greying, melanoma, and vitiligo quantitative inheritance in Old Kladruber horses

Intra-line and inter-line genetic diversity in sire lines of the Old Kladruber horse based on microsatellite analysis of DNA

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