Integrated Discriminant Evaluation of Molecular Genetic Markers and Genetic Diversity Parameters of Endangered Balearic Dog Breeds

Author:

Alanzor Puente José Manuel1,Pons Barro Águeda Laura1,González Ariza Antonio2ORCID,Martínez Martínez María del Amparo3,Delgado Bermejo Juan Vicente3ORCID,Navas González Francisco Javier3

Affiliation:

1. Institut de Reserca i Formaciò Agroalimentaria de les Illes Balears IRFAP, Conselleria d’Agricultura, Pesca i Alimentació, Govern Illes Balears, 07009 Palma, Spain

2. Centro Agropecuario Provincial de Córdoba, Diputación Provincial de Córdoba, 14014 Córdoba, Spain

3. Department of Genetics, Faculty of Veterinary Sciences, University of Córdoba, 14071 Córdoba, Spain

Abstract

The genetic diversity analysis of six dog breeds, including Ca de Bestiar (CB), Ca de Bou (CBOU), Podenco Ibicenco (PI), Ca Rater (CR), Ca Mè (CM), and Ca de Conills (CC), reveals insightful findings. CB showcases the highest mean number of alleles (6.17) and heterozygosity values, with significant deviations from Hardy–Weinberg equilibrium (HWE) observed in five markers, indicating high intra-racial genetic diversity (average observed heterozygosity (Ho) = 0.754, expected heterozygosity (He) = 0.761). In contrast, CBOU presents the lowest mean number of alleles (5.05) and heterozygosity values, coupled with moderate polymorphic information content (PIC) values and a moderate level of intra-racial genetic diversity (average Ho = 0.313, He = 0.394). PI demonstrates moderate genetic diversity with an average of 5.75 alleles and highly informative PIC values, while CR displays robust genetic diversity with an average of 6.61 alleles and deviations from equilibrium, indicating potential risks of inbreeding (average Ho = 0.563, He = 0.658). CM exhibits moderate genetic diversity and deviations from equilibrium, similar to CBOU, with an average of 6.5 alleles and moderate PIC values (average Ho = 0.598, He = 0.676). Conversely, CC shows a wider range of allelic diversity and deviations from equilibrium (average Ho = 0.611, He = 0.706), suggesting a more diverse genetic background. Inter-racial analysis underscores distinct genetic differentiation between breeds, emphasizing the importance of informed breeding decisions and proactive genetic management strategies to preserve diversity, promote breed health, and ensure long-term sustainability across all breeds studied.

Funder

Ramón y Cajal Post-Doctoral Contract

European Union “NextGenerationEU”/PRTR

Publisher

MDPI AG

Reference48 articles.

1. Navas, F.J. (May, January 30). Curso Formación de Jueces Ca de Conills Menorca. Proceedings of the II Jornada Sobre el Ca de Conill de Menorca, Menorca, Spain.

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4. Caracterización genética del Ca Rater Mallorquí con microsatélites;Aguilera;Arch. Zootec.,2022

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