Evolutionary history of the fish genus <Emphasis Type="Italic">Astyanax</Emphasis> Baird &; Girard (1854) (Actinopterygii,Characidae) in Mesoamerica reveals multiple morphological homoplasies |
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Authors: | Claudia Patricia Ornelas-García Omar Domínguez-Domínguez Ignacio Doadrio |
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Institution: | 1.Departamento de Biodiversidad y Biología Evolutiva,Museo Nacional de Ciencias Naturales, CSIC,Madrid,Spain;2.Posgrado en Ciencias del Mar y Limnología,Instituto de Ciencias del Mar y Limnología, Circuito exterior s/n, Ciudad Universitaria,México,Mexico |
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Abstract: | Background Mesoamerica is one of the world's most complex biogeographical regions, mostly due to its complex geological history. This
complexity has led to interesting biogeographical processes that have resulted in the current diversity and distribution of
fauna in the region. The fish genus Astyanax represents a useful model to assess biogeographical hypotheses due to it being one of the most diverse and widely distributed
freshwater fish species in the New World. We used mitochondrial and nuclear DNA to evaluate phylogenetic relationships within
the genus in Mesoamerica, and to develop historical biogeographical hypotheses to explain its current distribution. |
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