Genetic determinism of quality of lamb leather in Lacaune dairy sheep breed | Déterminisme génétique de la qualité du cuir des agneaux en race ovine Lacaune lait
2022
Larroque, Hélène | Dugas, Emeric | Woloszyn, Florent | Plisson-Petit, Florence | Gayraud, Jérémie | Duchêne, Jean-Charles | Frayssignes, Julien | Gille, Aurélie | Brenot, Sylvie | Allain, Daniel | Drouilhet, Laurence | Génétique Physiologie et Systèmes d'Elevage (GenPhySE) ; Ecole Nationale Vétérinaire de Toulouse (ENVT) ; Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT)-École nationale supérieure agronomique de Toulouse (ENSAT) ; Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Ecole d'Ingénieurs de Purpan (INP - PURPAN) ; Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Ovitest | ALRIC mégisserie | Groupe UNICOR | Unité Expérimentale Elevages Porcins Innovants (GenESI) ; Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | This project has received funding from Occitanie region’s Readynov program “L’A-PROPOS”
International audience
显示更多 [+] 显示较少 [-]英语. Lacaune lamb skins are well known for their high quality and their use in the leather industry and luxury ready-to-wear clothing. In France, for several decades, the quality of this leather has deteriorated, mainly due to two skin defects: pinhole and straw-like bushiness. To explore the genetic determinism of these defects, around 1400 Lacaune lambs, from 72 rams, were phenotyped for the 2 skin defects and 4 wool traits. The pinhole defect showed a high heritability (0.59 ± 0.07) and was highly genetically correlated to the wool predicted core bulk (rg = 0.54 ± 0.08). The straw-like bushiness defect had a lower heritability (0.25 ± 0.06), and was correlated to the mean fiber diameter (rg = 0.41 ± 0.15). A genome wide association study revealed for the pinhole defect one major signal on chromosome 3 close to a cluster of keratin genes, known to play an important role in skin development.
显示更多 [+] 显示较少 [-]