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MartÃnez, Amparo
Manunza, Arianna Delgado, Juan Vicente Landi, Vincenzo Adebambo, Ayotunde Ismaila, Muritala Capote, Juan El Ouni, Mabrouk Elbeltagy, Ahmed Abushady, Asmaa M. Gala, Salah Ferrando, Ainhoa Gómez, Mariano Pons, Agueda Badaoui, Bouabid Jordana, Jordi Vidal Fà brega, Oriol Amills, Marcel |
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Human-driven migrations are one of the main processes shaping the genetic diversity and population structure of domestic species. However, their magnitude and direction have been rarely analysed in a statistical framework. We aimed to estimate the impact of migration on the population structure of Spanish and African goats. To achieve this goal, we analysed a dataset of 1,472 individuals typed with 23 microsatellites. Population structure of African and Spanish goats was moderate (mean FST = 0.07), with the exception of the Canarian and South African breeds that displayed a significant differentiation when compared to goats from North Africa and Nigeria. Measurement of gene flow with Migrate-n and IMa coalescent genealogy samplers supported the existence of a bidirectional gene flow between African and Spanish goats. Moreover, IMa estimates of the effective number of migrants were remarkably lower than those calculated with Migrate-n and classical approaches. Such discrepancies suggest that recent divergence, rather than extensive gene flow, is the main cause of the weak population structure observed in caprine breeds | |
http://hdl.handle.net/2072/299467 | |
eng | |
Nature Publishing Group | |
Attribution 4.0 Spain | |
http://creativecommons.org/licenses/by/4.0/es/ | |
Animals -- Millora genètica
Animal breeding Genètica de poblacions Population genetics Cabres -- Millora genètica Goats -- Breeding |
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Detecting the existence of gene flow between Spanish and North African goats through a coalescent approach | |
info:eu-repo/semantics/article | |
Recercat |