Morphology and Sequence Data of Mexican Populations of the Ciliate Parasite of Marine Fishes Trichodina rectuncinata (Ciliophora: Trichodinidae)
Por:
Islas-Ortega, Alma G., Aguilar-Aguilar, Rogelio, Marcotegui, Paula, Martorelli, Sergio, Hernandez-Mena, David, Perez-Ponce de Leon, Gerardo
Publicada:
1 ene 2018
Categoría:
Agricultural and biological sciences (miscellaneous)
Resumen:
Trichodina rectuncinata is one of the trichodinids most widely
distributed in marine fish. This ciliate species has been recorded in
more than 20 host species belonging to 17 fish families worldwide.
Previous comparative studies based on morphometric data revealed
considerable morphological variation among specimens from different
populations of T. rectuncinata. In this study, we conducted a
morphometric-molecular analysis of three populations of T. rectuncinata
to evaluate potential differences among 18S rRNA sequences, in relation
to morphological variations. Smears were obtained from marine fishes in
three localities along the Pacific coast of Mexico. Based on the shape
of denticles, we found four different morphotypes for T. rectuncinata.
This morphological variability does not correspond with the genetic
divergence, suggesting that all analyzed populations belong to the same
species. Further analyses using more variable markers are necessary to
corroborate the findings of our study.
Filiaciones:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Biol Comparada, Apartado Postal 70-399, Mexico City 04510, DF, Mexico
Univ Nacl Autonoma Mexico, Posgrad Ciencias Biol, Fac Ciencias, Mexico City, DF, Mexico
CONICET UNLP, Ctr Estudios Parasitol & Vectores, La Plata, Buenos Aires, Argentina
Univ Nacl Autonoma Mexico, Inst Biol, Mexico City, DF, Mexico
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