Molecular phylogeny of Mexican species of freshwater prawn genus Macrobrachium (Decapoda: Palaemonidae: Palaemoninae)

Autores

  • Eliana Paola Acuña Gómez Laboratorio de Ecología Molecular, Centro Regional Fundación CEQUA (R13A1002), 21 de mayo N° 1690, Punta Arenas – Chile. Posgrado en Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México. Circuito Exterior s/n C.P. 04510. México
  • Fernando Álvarez Colección Nacional de Crustáceos, Instituto de Biología, Universidad Nacional Autónoma de México. Apartado Postal 70-15 Coyoacán, México, D. F. , 04510. México
  • José Luis Villalobos Hiriart Colección Nacional de Crustáceos, Instituto de Biología, Universidad Nacional Autónoma de México. Apartado Postal 70-15 Coyoacán, México, D. F. , 04510. México
  • Luis E. Eguiarte Laboratorio de Evolución Molecular y Experimental, Instituto de Ecología Universidad Nacional Autónoma de México. Apartado Postal 70-275, Coyoacán, México, D. F., 04510. México

Palavras-chave:

Macrobrachium, mitochondrial r16S, phylogenetic reconstruction.

Resumo

Molecular phylogenetic analyses of 16 species of the freshwater prawn genus Macrobrachium from Mexico are presented. The phylogenetic reconstructions are based on partial sequences from16S rDNA mitochondrial gene. The results show a clear separation of the species with extended larval development (ED) from those with abbreviated larval development (AD). Within the ED clade, the species of the Olfersii Group clustered together, which is in agreement with their morphological similarity, whereas the position of the three pairs of geminate species within this clade suggests different origins. Five Mexican species are grouped into a single clade suggesting a common origin in a species with few larval stages and relatively large eggs. The estimated time of evolutionary divergence suggests that the ED and AD clades diverged in the Middle Eocene; the three geminate pairs differentiated at different times, and the species of the AD group originated during the Early Pliocene.

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Publicado

2017-01-04

Como Citar

Acuña Gómez, E. P., Álvarez, F., Villalobos Hiriart, J. L., & Eguiarte, L. E. (2017). Molecular phylogeny of Mexican species of freshwater prawn genus Macrobrachium (Decapoda: Palaemonidae: Palaemoninae). HIDROBIOLÓGICA, 23(3), 399–409. Recuperado de https://hidrobiologica.izt.uam.mx/hidrobiologica/index.php/revHidro/article/view/660

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