Managing genetic diversity in breeding programs of small populations: the case of French local chicken breeds oleh Gwendal Restoux, Xavier Rognon, Agathe Vieaud, Daniel Guemene, Florence Petitjean, Romuald Rouger, Sophie Brard-Fudulea, Sophie Lubac-Paye, Geoffrey Chiron, Michèle Tixier-Boichard