title: Association between polymorphisms in cathepsin and cystatin genes with meat production and carcass traits in Italian Duroc pigs: confirmation of the effects of a cathepsin L (CTSL) gene marker.
abstract: We genotyped single nucleotide polymorphisms (SNPs) in 5 cathepsin or cystatin genes (cathepsin F, CTSF; cathepsin L, CTSL; cathepsin S, CTSS; cathepsin Z, CTSZ; cystatin B, CSTB) in two groups of Italian Duroc pigs: the first group (n. 100) was chosen using a selective genotyping approach with extreme estimated breeding value (EBV) for visible intermuscular fat (VIF); the second group (n. 218) was made of performance-tested Duroc pigs not selected by any criteria. CTSL marker showed a tendency towards association (P<0.10) with VIF (first group) and back fat thickness (BFT) and average daily gain (ADG; second group). In the second group, the CTSL polymorphism was associated with weight of lean cuts (LC; P<0.05). Additive effects for all mentioned traits in the second group was significant (P<0.05). The results we obtained in the Italian Duroc pigs confirmed the results and the direction of the effects already reported for the Italian Large White breed.
authors: Faculty of Agriculture, DIPROVAL, Sezione di Allevamenti Zootecnici, University of Bologna, Via F.lli Rosselli 107, 42123, Reggio Emilia, RE, Italy. luca.fontanesi@unibo.it
authors: Luca
authors: L
authors: Fontanesi
authors: Camilla
authors: C
authors: Speroni
authors: Luca
authors: L
authors: Buttazzoni
authors: Emilio
authors: E
authors: Scotti
authors: Stefania
authors: S
authors: Dall'Olio
authors: Roberta
authors: R
authors: Davoli
authors: Vincenzo
authors: V
authors: Russo
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