Phylogeny, genetic variability and colour polymorphism of an emerging animal model: the short-lived annual Nothobranchius fishes from southern Mozambique

0371210 - ÚŽFG 2012 RIV US eng J - Článek v odborném periodiku
Dorn, A. - Ng'oma, E. - Janko, Karel - Reichwald, K. - Polačik, Matej - Platzer, M. - Cellerino, A. - Reichard, Martin
Phylogeny, genetic variability and colour polymorphism of an emerging animal model: the short-lived annual Nothobranchius fishes from southern Mozambique.
Molecular Phylogenetics and Evolution. Roč. 61, č. 3 (2011), s. 739-749. ISSN 1055-7903. E-ISSN 1095-9513
Grant CEP: GA ČR GA206/09/0815
Výzkumný záměr: CEZ:AV0Z50450515; CEZ:AV0Z60930519
Klíčová slova: Ageing * Allopatric speciation * Cyprinodontiformes * Killifish * Life history * Mozambique
Kód oboru RIV: EG - Zoologie
Impakt faktor: 3.609, rok: 2011

Nothobranchius are a group of small, extremely short-lived killifishes living in temporary savannah pools in Eastern Africa and that survive annual desiccation of their habitat as dormant eggs encased in dry mud. One mitochondrial (COI) and three nuclear (CX32.2, GHITM, PNP) loci were used to investigate the phylogenetic relationship of Nothobranchius species from southern and central Mozambique. This group shows marked variation in captive lifespan at both the inter- and intraspecific levels; lifespan varies from a few months to over a year. As their distribution encompasses a steep gradient between semi-arid and humid habitats, resulting in contrasting selection pressures on evolution of lifespan and associated life history traits, Mozambican Nothobranchius spp. have recently become a model group in studies of ageing, age-related disorders and life history evolution. Consequently, intraspecific genetic variation and male colour morph distribution was also examined in the recovered clades.
Trvalý link: http://hdl.handle.net/11104/0204780