Lack of evidence for bovine Y‐chromosomal variation in beef traits. A Bayesian analysis of Simmental data

Reinsch, By N.; Engellandt, Thomas; Schild, H. J.; Kalm, E.

doi:10.1046/j.1439-0388.1999.00219.x

Cited by 9 publications

(9 citation statements)

References 6 publications

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“…This is in good agreement with results from quantitative analyses of beef traits (Reinsch et al, 1999;Engellandt and Tier, 2002), who found no significant influence of y-chromosomal inheritance in cattle carcass traits. Neugebauer, Luther and Reinsch Jeon et al (1999), Nezer et al (1999) and Van Laere et al (2003) reported effects of a polymorphism of the imprinted IGF2 locus on carcass traits in pigs.…”

Section: Resultssupporting

confidence: 91%

Parent-of-origin effects cause genetic variation in pig performance traits

Neugebauer

Luther

Reinsch

2010

Animal

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In order to assess the relative importance of genomic imprinting for the genetic variation of traits economically relevant for pork production, a data set containing 21 209 records from Large White pigs was analysed. A total of 33 traits for growth, carcass composition and meat quality were investigated. All traits were recorded between 1997 and 2006 at a test station in Switzerland and the pedigree included 15 747 ancestors. A model with two genetic effects for each animal was applied: the first corresponds to a paternal and the second to a maternal expression pattern of imprinted genes. The imprinting variance was estimated as the sum of both corresponding genetic variances per animal minus twice the covariance. The null hypothesis of no imprinting was tested by a restricted maximum likelihood ratio test with two degrees of freedom. Genomic imprinting significantly contributed to the genetic variance of 19 traits. The proportion of the total additive genetic variance that could be attributed to genomic imprinting was of the order between 5% and 19%.

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Section: Resultssupporting

confidence: 91%

Parent-of-origin effects cause genetic variation in pig performance traits

Neugebauer

Luther

Reinsch

2010

Animal

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“…These results partially agreed with those reported by Engellandt and Tier (2002) and Neugebauer et al (2010) in Gelbvieh and Simmental cattle, respectively, although contradictory results were also available (Reinsch et al, 1999). The influence of the Y chromosome was previously highlighted by Kieffer and Cartwright (1968) and Schoeman (1989), who reported that even the morphology of this chromosome (i.e.…”

Section: Model Comparisonsupporting

confidence: 90%

“…Note that DIC estimates evidenced substantial departures when comparing independent chains from the same analysis (Table 2), although this variability did not contradict the final conclusions derived from average DIC estimate, and its standard error was smaller than 1% of the average DIC in all cases (Table 2). Moreover, the smallest effective chain lengths for genetic and residual variances were comparables to the values provided by other studies on sire-specific genetic variability in beef cattle (Reinsch et al, 1999).…”

Section: Model Comparisonsupporting

confidence: 84%

“…Contradictory results about the impact of the Y chromosome on carcass traits in Simmental cattle were provided by Reinsch et al (1999) and Neugebauer et al (2010), although large effects were discarded. However, in mice, Schwenker and Maxon (1986) and Bü nger et al (1995) reported significant influences from the Y chromosome on growth, BW and testis weight.…”

Section: Introductionmentioning

confidence: 99%

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Sources of sire-specific genetic variance for birth and weaning weight in Bruna dels Pirineus beef calves

Fina

Varona

Piedrafita

et al. 2012

Animal

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This research investigated two sources of sire-specific genetic effects on the birth weight (BWT) and weaning weight (WWT) of Bruna dels Pirineus beef calves. More specifically, we focused on the influence of genes located in the non-autosomal region of the Y chromosome and the contribution of paternal imprinting. Our analyses were performed on 8130 BWT and 1245 WWT records from 12 and 2 purebred herds, respectively, they being collected between years 1986 and 2010. All animals included in the study were registered in the Yield Recording Scheme of the Bruna dels Pirineus breed. Both BWT and WWT were analyzed using a univariate linear animal model, and the relevance of paternal imprinting and Y chromosome-linked effects were checked by the deviance information criterion (DIC). In addition to sire-specific and direct genetic effects, our model accounted for random permanent effects (dam and herd-year-season) and three systematic sources of variation, that is, sex of the calf (male or female), age of the dam at calving (six levels) and birth type (single or twin). Both weight traits evidenced remarkable effects from the Y chromosome, whereas paternal imprinting was only revealed in WWT. Note that differences in DIC between the preferred model and the remaining ones exceed 39 000 and 2 800 000 DIC units for BWT and WWT, respectively. It is important to highlight that Y chromosome accounted for ,2% and ,6% of the total phenotypic variance for BWT and WWT, respectively, and paternal imprinting accounted for ,13% of the phenotypic variance for WWT. These results revealed two relevant sources of sire-specific genetic variability with potential contributions to the current breeding scheme of the Bruna dels Pirineus beef cattle breed; moreover, these sire-specific effects could be included in other beef cattle breeding programs or, at least, they must be considered and appropriately analyzed.Keywords: Bruna dels Pirineus, sire-specific genetic variance, birth weight, weaning weight ImplicationsDespite the fact that sire-specific genetic effects are typically ignored in genetic evaluation models, their real impact remains almost unknown in livestock species. Both Y chromosomerelated effects and paternal imprinting effects were evaluated on birth and weaning weight (WWT) in the Bruna dels Pirineus beef cattle breed. Whereas Y chromosome effects influenced both traits and accounted for ,2% and 6% of the phenotypic variance, respectively, paternal imprinting effects restricted to WWT (,13% of the phenotypic variability). Our results highlighted the relevance of these sire-specific sources of variation in beef cattle, and provided relevant information to optimize genetic evaluation models for weight traits.

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“…The convergence was determined by visual inspection of plots of realised parameter values against iteration number. Similar convergence detection was used by REINSCH et al (1999). Genetic correlations were estimated with a linear multivariate lactation model using the program VCE 4 (GROENEVELD, 1998).…”

Section: Methodsmentioning

confidence: 99%

Genetic Analysis of Several Economically Important Disease Traits in German Holstein Cows

Hinrichs¹,

Stamer²,

Junge³

et al. 2006

Arch. Anim. Breed.

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Abstract. In the present study several disease categories were analysed. Data recording ends after 50, 100, or 300 days in milk. Furthermore, the impact of increasing numbers of daughters per sire (improved genetic structure of the data) was examined and genetic correlations between disease categories were estimated. Diseases were clustered into fertility diseases, udder diseases, metabolic diseases, and claw and leg diseases. In addition, all diseases were analysed simultaneously. Frequencies of the disease categories were moderately high and vary between 7% and 78%. The most frequent disease categories were fertility diseases and udder diseases. Heritabilities for all diseases varied between 0.03 and 0.05, and were 0.02 to 0.05 for fertility diseases, 0.06 to 0.08 for udder diseases, 0.08 to 0.16 for metabolic diseases, and 0.01 to 0.03 for claw and leg diseases, respectively. The genetic correlation between disease categories ranged from – 0.18 to 0.82.

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Lack of evidence for bovine Y‐chromosomal variation in beef traits. A Bayesian analysis of Simmental data

Cited by 9 publications

References 6 publications

Parent-of-origin effects cause genetic variation in pig performance traits

Parent-of-origin effects cause genetic variation in pig performance traits

Sources of sire-specific genetic variance for birth and weaning weight in Bruna dels Pirineus beef calves

Genetic Analysis of Several Economically Important Disease Traits in German Holstein Cows

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