From phenotypical to genomic characterisation of the mannara dog: an italian shepherd canine resource

Liotta, Luigi; Bionda, Arianna; Cortellari, Matteo; Negro, Alessio; Crepaldi, P.

doi:10.1080/1828051x.2021.1972852

Cited by 6 publications

(5 citation statements)

References 29 publications

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“…Since the CI is a continuous variable across skull shapes (Drake & Klingenberg, 2008; Roberts et al, 2010; Stone et al, 2016) and different values of this index are being used to mark the transition between two skull‐type classes (e.g. Bognár et al, 2021; Liotta et al 2021), we added two transition classes and classified as follows: skull type 1 (dolichocephalic, CI < 48), skull type 2 (mildly dolichocephalic, CI between 48 and 51), skull type 3 (mesaticephalic, CI between 52 and 69), skull type 4 (mildly brachycephalic, CI between 70 and 75), skull type 5 (brachycephalic, CI > 75). The values of the CI were based on measurements published by McGreevy et al (2013), Stone et al (2016), and own measurements on skull collections in the faculty's museum of Morphology.…”

Section: Methodsmentioning

confidence: 99%

Time and sequence of emergence of the deciduous dentition in dogs and its applicability for age estimation

Broeck

Bels

Duchateau

et al. 2022

Anat Histol Embryol

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Breeding and trading dogs are subject to strict regulation, both to safeguard animal welfare and public health. These legal requirements may be tailored to specific developmental stages and age categories of the dog. For instance, puppies under 8 weeks of age may not be transported within the EU without their mothers (Council Regulation [EC] N° 1/2005). Puppies traded across borders may currently not be under 15 weeks of age due to the rabies vaccination protocol (Annex III to Regulation [EU] N° 576/2013 and Directive 92/65/EEC). A swift and reliable assessment of age is therefore a prerequisite to verify that legal age requirements are met (Modina

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Section: Methodsmentioning

confidence: 99%

Time and sequence of emergence of the deciduous dentition in dogs and its applicability for age estimation

Broeck

Bels

Duchateau

et al. 2022

Anat Histol Embryol

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“…In the literature, only a few genomic studies focused on the Italian shepherd dog breeds, mostly based on microsatellites [ 8 , 9 , 10 , 11 , 12 , 13 ] or on the identification of genes specifically related to sheepdogs [ 14 , 15 ]. Therefore, the aim of the present study was to investigate the genomic regions that best differentiate and characterise Italian herding and livestock guardian shepherd dogs genotyped with a high-density SNP chip.…”

Section: Introductionmentioning

confidence: 99%

Selection Signatures in Italian Livestock Guardian and Herding Shepherd Dogs

Bionda

Cortellari

Bigi

et al. 2022

Veterinary Sciences

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Livestock guardian (LGD) and herding shepherd (HSD) dogs have distinct morphological and behavioural characteristics, long selected by farmers and breeders, to accomplish different tasks. This study aimed to find the genomic regions that best differentiate and characterise Italian LGD and HSD. Genomic data of 158 dogs of four LGD and five HSD breeds, obtained with the 170K canine SNPchip, were collected. The two groups were compared using FST and XP-EHH analyses, identifying regions containing 29 genes. Moreover, 16 islands of runs of homozygosity were found in LGD, and 15 in HSD; 4 of them were partially shared. Among the genes found that better differentiated HSD and LGD, several were associated with dog domestication and behavioural aspects; particularly, MSRB3 and LLPH were linked to herding behaviour in previous studies. Others, DYSK, MAP2K5, and RYR, were related to body size and muscle development. Prick ears prevailed in sampled HSD, and drop ears in LGD; this explains the identification of WIF1 and MSRB3 genes. Unexpectedly, a number of genes were also associated with eye development and functionality. These results shed further light on the differences that human selection introduced in dogs aimed at different duties, even in a limited geographic area such as Italy.

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“…To limit this problem, it is of great importance to solve the disagreements between breeders and the kennel club, for example, improving the role and the responsibility of the breed club and the livestock keepers, which actually deal with the preservation activities over time, and creating accurate mating plans and exchanging of dogs between breeders that share a common vision of the breed. Another suggestion might be to follow the successful example of other breed clubs, including the Mannara dog breed club [41], establishing a roving commission of ENCI judges who personally visit the farms of the rural areas where the possible founder dogs live, giving the opportunity to increase the total and breeding population size. This direct contact with the breeders would also allow them to collect their concerns about the management and vision of the breed, and thus improve the breed standard like it was a "participatory project", it being, in fact, a dynamic document that should evolve accordingly with the population.…”

Section: Discussionmentioning

confidence: 99%

Genomic Analysis of the Endangered Fonni’s Dog Breed: A Comparison of Genomic and Phenotypic Evaluation Scores

Cortellari

Bionda

Cocco

et al. 2023

Animals

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The Fonni’s dog is an ancient Sardinian breed for livestock and property guarding. In recent years, the number of new registrations to the breeding book has slumped and, thus, this breed risks being lost forever. This work refocuses attention to the Fonni’s dog, analysing its genomic makeup and comparing different phenotypical and genetic evaluation scores. Thirty Fonni’s dogs were ranked by their general accordance to the breed typicality (typicality score) and to the provisional standard by official judges (judges’ score). They were genotyped with a 230K SNP BeadChip and compared with 379 dogs of 24 breeds. Genomically, the Fonni’s dogs placed themselves near shepherd dogs and showed a unique genetic signature, which was used to create the genomic score. This score better correlated with typicality (ρ = 0.69, p < 0.0001) than the judges’ score (ρ = 0.63, p = 0.0004), which showed little variability among the included dogs. Hair texture or colour were significantly associated in the three scores. The Fonni’s dog is confirmed as a well-distinguished breed, despite being selected mainly for its work abilities. The evaluation criteria used during dog expositions can be improved to increase their variability and include elements typical of the breed. The recovery of the Fonni’s dog would be possible only with a shared vision between the Italian kennel club and breeders, and the support of regional programs.

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From phenotypical to genomic characterisation of the mannara dog: an italian shepherd canine resource

Cited by 6 publications

References 29 publications

Time and sequence of emergence of the deciduous dentition in dogs and its applicability for age estimation

Time and sequence of emergence of the deciduous dentition in dogs and its applicability for age estimation

Selection Signatures in Italian Livestock Guardian and Herding Shepherd Dogs

Genomic Analysis of the Endangered Fonni’s Dog Breed: A Comparison of Genomic and Phenotypic Evaluation Scores

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