QTL affecting conformation traits in Angora goats

Marrube, G.; Cano, Eduardo; Roldan, D.L.; Bidinost, F.; Abad, Miguel Pino; Allain, Daniel; Vaiman, Daniel; Taddeo, H.; Poli, M. A.

doi:10.1016/j.smallrumres.2006.07.008

Cited by 19 publications

(16 citation statements)

References 21 publications

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“…In conclusion, the application of discriminate analysis to morphometric variables in dogs belonging to several Podenco breeds enabled breeds and varieties to be clearly distinguished, as reported for other species Capote et al;Crepaldi et al;Macciotta et al;Rodero et al;Lanari et al;Zaitoun et al;Luque et al;Dossa et al;Marrube et al;Vargas et al;Traoré et al, 2008a;Traoré et al, 2008b).…”

Section: Discussionsupporting

confidence: 54%

“…The method used here has been applied to goat breeds (Herrera et al, 1996). In general terms, the examination of morphometric variables using discriminate analysis techniques (simple, stepwise, cluster and canonical) has enabled the differentiation of breeds and varieties of various domestic species Capote et al, 1998;Crepaldi et al;2001;Macciotta et al, 2002;Rodero et al, 2003;Lanari et al, 2003;Zaitoun et al, 2005;Luque et al, 2005;Dossa et al, 2007;Marrube et al, 2007;Vargas et al, 2007;Traoré et al, 2008a;Traoré et al, 2008b).…”

Section: Introductionmentioning

confidence: 99%

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Use of Morphometric Variables for Differentiating Spanish Hound Breeds

González¹,

Luque²,

Serrano³

et al. 2011

Int. J. Morphol.

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SUMMARY:The term Podencos refers to a group of dog breeds from Spain and classification in Group 5 of dog breeds by the Fédération Cynologique Internationale (FCI). The aim of this study was to compare traits morphometric breeds of Podencos; Canario, Ibecenco, Andaluz (small, medium and large) and Orito. Ten morphometric variables were measured in 385 animals (245 females and 140 males), head length, muzzle length, height at withers, rump height, body length, head width, rump width, chest depth, chest girth and the shin circumference. Morphostructural variables were more homogeneous in the Podenco Ibicenco and the Podengo Canario, because for many years there were gradually distinctive trait standards for each breed. The discriminate analysis indicated morphostructural differences between all breeds, as reflected in the significant Mahalanobis distance, and confirmed that the hound Orito may be accepted as a different dog population.

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Section: Discussionsupporting

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Use of Morphometric Variables for Differentiating Spanish Hound Breeds

González¹,

Luque²,

Serrano³

et al. 2011

Int. J. Morphol.

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“…Genome examinations for QTL in Angora goats conducted by Cano et al (2007) and Marrube et al (2007) reported the first results on putative QTL affecting fleece and conformation traits. Genome examinations for QTL in Angora goats conducted by Cano et al (2007) and Marrube et al (2007) reported the first results on putative QTL affecting fleece and conformation traits.…”

Section: Introductionmentioning

confidence: 99%

Chromosomal segments underlying quantitative trait loci for mohair production in Angora goats

Cano¹,

Debenedetti

Abad

et al. 2009

Anim. Genet. Resour. Inf.

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This study reports the results obtained in the search of chromosomal regions affecting fleece traits in a population of Angora goats in the Argentinean Patagonia. Six hundred thirty-four offspring from 14 parental half-sib families were used. Nine phenotypic fleece traits were recorded at 4 and 11 months of age. A genome examination using 85 informative molecular markers was conducted. A linkage analysis was performed using a regression interval analysis. Our study identified 10 genomic regions affecting the average fibre diameter, coefficient of variation of the average fibre diameter, percentage of fibres with diameters over 30 µm, greasy fleece weight, staple length, average curvature of fibres, percentage of continuous medullated fibres and percentage of kemp fibres located on five goat chromosomes (1, 2, 5, 13 and 19). These results show that the average size of the quantitative trait loci effect was 1.6 phenotypic standard deviations for different traits and families. The aims of quantitative trait loci detection is the potential use of these molecular markers to increase accuracy in predicting the genetic merit of breeding and its implementation in animal breeding schemes through marker-assisted selection. RésuméDans cette étude, on signale les résultats obtenus dans la recherche des régions chromosomiques relatives aux caractéristiques de la toison des chèvres angora dans la Patagonie argentine. On a utilisé 634 descendants de 14 familles à descendance uniparentale et enregistré neuf caractères phénotypiques de la toison à 4 et 11 mois. Un examen du génome a été entrepris en utilisant 85 marqueurs moléculaires informatifs. L'analyse du groupe de liaison a été effectuée en utilisant une analyse de l'intervalle de régression. Notre étude a identifié 10 régions génomiques qui affectent le diamètre moyen de la fibre, le coefficient de variation du diamètre moyen de la fibre, le pourcentage de fibre ayant un diamètre supérieur à 30 µm, le poids de la laine en suint, la longueur de la fibre, la courbure moyenne de la fibre, le pourcentage de fibres médullaires continues et le pourcentage de fibre de jarre située sur cinq chromosomes de chèvre (1, 2, 5, 13 et 19). Ces résultats indiquent que la taille moyenne de l'effet QTL était des déviations phénotypiques standard de 1,6 pour les différents caractères et familles. Le but de la détection des QTL est l'utilisation potentielle de ces marqueurs moléculaires en vue d'accroître la précision dans la prévision de la valeur génétique de la sélection et sa mise en oeuvre dans les programmes de sélection animale par le biais de la sélection assistée par marqueurs. Mots-clés: chèvres Angora, mohair, loci à effets quantitatifsResumen En este estudio, informamos sobre los resultados obtenidos en la búsqueda de regiones cromosómicas que afectan a las características del vellón en una población de cabras de Angora en la Patagonia Argentina. Se utilizaron seiscientos treinta y cuatro crías de 14 familias parentales de medios hermanos. A la edad de 4 meses y de 11 meses, se re...

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“…QTL for birth and weaning weight were reported by Mohammed Abadi et al (2009) in Rayini goats, while Marrube et al (2007) failed to detect any QTL associated with weaning weight in Angora goats. QTL affecting growth traits have been reported in various sheep breeds (McRae et al, 2005;Hadjipavlou & Bishop, 2008;Esmailizadeh, 2010), but still need to be validated in goat breeds.…”

Section: Introductionmentioning

confidence: 87%

Quantitative trait loci associated with pre-weaning growth in South African Angora goats

Visser

Marle-Köster

Snyman

et al. 2013

Small Ruminant Research

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This study aimed to identify chromosomal regions associated with genetic variation in preweaning growth traits in Angora goats. A genome-wide scan was performed by genotyping 1042 offspring from 12 half-sib families using 88 microsatellite caprine markers covering 1368cM.Phenotypes were recorded at birth (BW) and weaning (WW) and analysed using GridQTL software.A total of six putative QTL were detected on six different chromosomes, all at chromosome-wide significance level. Four QTL were identified for BW on CHI 4, 8, 17 and 27 and two QTL for WW on CHI 16 and 19. QTL effects ranged from -0.32 to 0.25 in units of residual standard deviation in different families. Some of these QTL correspond to chromosomes where QTL associated with growth have been identified in other species. These chromosomal segments hold potential to influence weight gain in young goats.

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QTL affecting conformation traits in Angora goats

Cited by 19 publications

References 21 publications

Use of Morphometric Variables for Differentiating Spanish Hound Breeds

Use of Morphometric Variables for Differentiating Spanish Hound Breeds

Chromosomal segments underlying quantitative trait loci for mohair production in Angora goats

Quantitative trait loci associated with pre-weaning growth in South African Angora goats

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