Phenotypic and Genetic Study of the Presence of Hair Whorls in Pura Raza Español Horses
Hair whorls are a hereditary feature in horses that may be associated with temperament and coat color. Hair whorls are described as changes in the hair pattern and may take various forms, such as circular and linear whorls. We first carried out a frequency analysis of hair whorls (circular and linea...
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MDPI AG
2023-09-01
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| Series: | Animals |
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| Online Access: | https://www.mdpi.com/2076-2615/13/18/2943 |
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| author | Ana Encina Manuel Ligero María José Sánchez-Guerrero Arancha Rodríguez-Sainz de los Terreros Ester Bartolomé Mercedes Valera |
| author_facet | Ana Encina Manuel Ligero María José Sánchez-Guerrero Arancha Rodríguez-Sainz de los Terreros Ester Bartolomé Mercedes Valera |
| author_sort | Ana Encina |
| collection | DOAJ |
| description | Hair whorls are a hereditary feature in horses that may be associated with temperament and coat color. Hair whorls are described as changes in the hair pattern and may take various forms, such as circular and linear whorls. We first carried out a frequency analysis of hair whorls (circular and linear). Next, a Generalized Non-Linear Model was computed to assess the significance of some potential influencing factors, and a genetic parameter estimation was performed. ENDOG software v4.8 was used to estimate the inbreeding coefficient of all the animals analyzed. It was more common to find horses with circular hair whorls than with linear whorls. The heritability ranges obtained were, in general, medium-high for both circular whorls (0.20 to 0.90) and linear whorls (0.44 to 0.84). High positive correlations were found on the between left and right positions, indicating a tendency to symmetry in certain locations. The laterality of hair whorls was also evidenced, with the biggest concentration on the left-hand side, particularly in gray horses, showing circular whorls below the central line of eyes, which has been associated in a previous paper with a calmer and more docile temperament. |
| first_indexed | 2024-03-10T23:06:49Z |
| format | Article |
| id | doaj.art-c660a5b8c06d4eb9a8fd389a35c43986 |
| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-10T23:06:49Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-c660a5b8c06d4eb9a8fd389a35c439862023-11-19T09:15:48ZengMDPI AGAnimals2076-26152023-09-011318294310.3390/ani13182943Phenotypic and Genetic Study of the Presence of Hair Whorls in Pura Raza Español HorsesAna Encina0Manuel Ligero1María José Sánchez-Guerrero2Arancha Rodríguez-Sainz de los Terreros3Ester Bartolomé4Mercedes Valera5Real Asociación Nacional de Criadores de Caballos de Pura Raza Española (ANCCE), 41014 Sevilla, SpainDepartamento de Agronomía, Escuela Técnica Superior de Ingeniaría Agronómica, Universidad de Sevilla, Carretera de Utrera Km 1, 41013 Sevilla, SpainDepartamento de Agronomía, Escuela Técnica Superior de Ingeniaría Agronómica, Universidad de Sevilla, Carretera de Utrera Km 1, 41013 Sevilla, SpainReal Asociación Nacional de Criadores de Caballos de Pura Raza Española (ANCCE), 41014 Sevilla, SpainDepartamento de Agronomía, Escuela Técnica Superior de Ingeniaría Agronómica, Universidad de Sevilla, Carretera de Utrera Km 1, 41013 Sevilla, SpainDepartamento de Agronomía, Escuela Técnica Superior de Ingeniaría Agronómica, Universidad de Sevilla, Carretera de Utrera Km 1, 41013 Sevilla, SpainHair whorls are a hereditary feature in horses that may be associated with temperament and coat color. Hair whorls are described as changes in the hair pattern and may take various forms, such as circular and linear whorls. We first carried out a frequency analysis of hair whorls (circular and linear). Next, a Generalized Non-Linear Model was computed to assess the significance of some potential influencing factors, and a genetic parameter estimation was performed. ENDOG software v4.8 was used to estimate the inbreeding coefficient of all the animals analyzed. It was more common to find horses with circular hair whorls than with linear whorls. The heritability ranges obtained were, in general, medium-high for both circular whorls (0.20 to 0.90) and linear whorls (0.44 to 0.84). High positive correlations were found on the between left and right positions, indicating a tendency to symmetry in certain locations. The laterality of hair whorls was also evidenced, with the biggest concentration on the left-hand side, particularly in gray horses, showing circular whorls below the central line of eyes, which has been associated in a previous paper with a calmer and more docile temperament.https://www.mdpi.com/2076-2615/13/18/2943behaviorheritabilityequinescoat colorgenetic modelstemperament |
| spellingShingle | Ana Encina Manuel Ligero María José Sánchez-Guerrero Arancha Rodríguez-Sainz de los Terreros Ester Bartolomé Mercedes Valera Phenotypic and Genetic Study of the Presence of Hair Whorls in Pura Raza Español Horses Animals behavior heritability equines coat color genetic models temperament |
| title | Phenotypic and Genetic Study of the Presence of Hair Whorls in Pura Raza Español Horses |
| title_full | Phenotypic and Genetic Study of the Presence of Hair Whorls in Pura Raza Español Horses |
| title_fullStr | Phenotypic and Genetic Study of the Presence of Hair Whorls in Pura Raza Español Horses |
| title_full_unstemmed | Phenotypic and Genetic Study of the Presence of Hair Whorls in Pura Raza Español Horses |
| title_short | Phenotypic and Genetic Study of the Presence of Hair Whorls in Pura Raza Español Horses |
| title_sort | phenotypic and genetic study of the presence of hair whorls in pura raza espanol horses |
| topic | behavior heritability equines coat color genetic models temperament |
| url | https://www.mdpi.com/2076-2615/13/18/2943 |
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