MOLECULAR, MORPHOLOGICAL, AND ECOLOGICAL DATA OF SACCOCOELIOIDES SZIDAT, 1954 (DIGENEA: HAPLOPORIDAE) FROM MIDDLE AMERICA SUPPORTED THE REALLOCATION FROM CULUWIYA CICHLIDORUM TO SACCOCOELIOIDES
Por:
Andrade-Gomez, Leopoldo, Daniel Pinacho-Pinacho, Carlos, Garcia-Varela, Martin
Publicada:
1 jun 2017
Resumen:
This study investigates the systematic position of some species of the
genus Saccocoelioides Szidat, 1954, and the species Culuwiya cichlidorum
Aguirre-Macedo and Scholz, 2005, from North and Middle America using new
morphological data and partial sequences of 2 nuclear genes, the large
subunit and the internal transcribed spacer 2 from ribosomal DNA. In
total 74 specimens representing 4 species of Saccocoelioides (41 of
Saccocoelioides sogandaresi, 3 of Saccocoelioides chauhani, 6 of
Saccocoelioides lamothei, and 12 of Saccocoelioides olmecae) plus 12
specimens of Culuwiya cichlidorum were analyzed. The phylogenetic
analyses inferred with maximum likelihood method and Bayesian inference
showed that the 4 species of Saccocoelioides formed a clade divided into
4 subclades representing each species. In addition, 7 specimens
sequenced from the type host and locality of Culuwiya cichlidorum were
nested in 2 clades: the first clade with specimens of C. cichlidorum
from Costa Rica, and the second clade with specimens of S. sogandaresi
from Mexico, Honduras, Nicaragua, and Costa Rica. Our analyses suggest
that C. cichlidorum should be reallocated into Saccocoelioides, as was
originally designated Saccocoelioides cichlidorum n. comb., is
restricted to Nicaragua and Costa Rica and associated with cichlid
fishes. In contrast, the specimens identified previously as Culuwiya
cichlidorum from the coast of Gulf of Mexico by Aguirre-Macedo and
Scholz belong to S. sogandaresi, which has a wide distribution that
extends from Galveston Bay (U.S.A.) in Gulf of Mexico to Atlantic and
Pacific slopes associated with poeciliid and cichlid fishes. New
morphological data derived from scanning electron microscopy photographs
of the body surface show a characteristic pattern of spination that is
useful to distinguish between S. cichlidorum n. comb. and S.
sogandaresi.
Filiaciones:
Andrade-Gomez, Leopoldo:
Univ Nacl Autonoma Mexico, Posgrad Ciencias Biol, Inst Biol, AP 70-153, Mexico City 04510, DF, Mexico
Daniel Pinacho-Pinacho, Carlos:
Univ Nacl Autonoma Mexico, Posgrad Ciencias Biol, Inst Biol, AP 70-153, Mexico City 04510, DF, Mexico
Univ Sierra Sur, Div Estudios Postgrad, Guillermo Rojas Mijangos S-N,Ciudad Univ, Miahuatlan De Porfirio D 70800, Oaxaca, Mexico
Garcia-Varela, Martin:
Univ Nacl Autonoma Mexico, Posgrad Ciencias Biol, Inst Biol, AP 70-153, Mexico City 04510, DF, Mexico
Univ Nacl Autonoma Mexico, Dept Zool, Inst Biol, Ave Univ 3000,Ciudad Univ, Ciudad De Mexico 04510, Mexico
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