Dataset Information

Detecting the existence of gene flow between Spanish and North African goats through a coalescent approach.

ABSTRACT: 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 F_ST?=?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.

SUBMITTER: Martinez A

PROVIDER: S-EPMC5155231 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature

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Detecting the existence of gene flow between Spanish and North African goats through a coalescent approach.

Martínez Amparo A Manunza Arianna A Delgado Juan Vicente JV Landi Vincenzo V Adebambo Ayotunde A Ismaila Muritala M Capote Juan J El Ouni Mabrouk M Elbeltagy Ahmed A Abushady Asmaa M AM Galal Salah S Ferrando Ainhoa A Gómez Mariano M Pons Agueda A Badaoui Bouabid B Jordana Jordi J Vidal Oriol O Amills Marcel M

Scientific reports 20161214

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 F<sub>ST< ...[more]

PMID: 27966592

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Dataset Information

Detecting the existence of gene flow between Spanish and North African goats through a coalescent approach.

Publications

Detecting the existence of gene flow between Spanish and North African goats through a coalescent approach.

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