TY - JOUR
T1 - Proposed synonymy for Micropogonias altipinnis (Günther 1864), Micropogonias ectenes (Jordan & Gilbert 1882), and Micropogonias megalops (Gilbert 1890)
AU - Sánchez-Pinedo, Geremías
AU - Díaz-Viloria, Noé
AU - Ortiz-Galindo, José L.
AU - Ferreira-Fontoura, Nelson
AU - Perez-Enriquez, Ricardo
AU - Sánchez-Velasco, Laura
AU - De La Cruz-Agüero, José
N1 - Publisher Copyright:
© 2017 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2018/1/2
Y1 - 2018/1/2
N2 - Within the Sciaenidae family, the genus Micropogonias is composed of three recognized species along the Pacific coast of Mexico: Micropogonias altipinnis, M. ectenes, and M. megalops. These species exhibit overlapping diagnostic characters, which make species identification difficult. This study ties morphological differences (meristic, morphometry of body, and otolith) with DNA sequences (CO1 and 16S fractions of mtDNA and 28S of nDNA) among Micropogonias species in the Pacific. Meristic analysis showed a latitudinal variation among the three species in the number of rays, the number of gill rakers, and length of the longest spine of the dorsal fin. Discriminant analysis of morphometric characters (body and otolith) showed three morphological entities (p < 0.001). However, the mean genetic divergences among the three species with partial sequences of mtDNA (CO1 and 16S), and nuclear (28S) were lower than those reported at the interspecific level (>2%). Genetic results suggest that the three species are one species and that the differences in meristics and morphometry could be the result of phenotypic plasticity or incipient speciation. In this sense, M. ectenes and M. megalops are proposed as junior synonyms of M. altipinnis.
AB - Within the Sciaenidae family, the genus Micropogonias is composed of three recognized species along the Pacific coast of Mexico: Micropogonias altipinnis, M. ectenes, and M. megalops. These species exhibit overlapping diagnostic characters, which make species identification difficult. This study ties morphological differences (meristic, morphometry of body, and otolith) with DNA sequences (CO1 and 16S fractions of mtDNA and 28S of nDNA) among Micropogonias species in the Pacific. Meristic analysis showed a latitudinal variation among the three species in the number of rays, the number of gill rakers, and length of the longest spine of the dorsal fin. Discriminant analysis of morphometric characters (body and otolith) showed three morphological entities (p < 0.001). However, the mean genetic divergences among the three species with partial sequences of mtDNA (CO1 and 16S), and nuclear (28S) were lower than those reported at the interspecific level (>2%). Genetic results suggest that the three species are one species and that the differences in meristics and morphometry could be the result of phenotypic plasticity or incipient speciation. In this sense, M. ectenes and M. megalops are proposed as junior synonyms of M. altipinnis.
KW - CO1
KW - Micropogonias altipinnis
KW - Micropogonias ectenes
KW - Micropogonias megalops
KW - morphological and molecular characters
KW - tropical eastern Pacific
UR - http://www.scopus.com/inward/record.url?scp=85010703164&partnerID=8YFLogxK
U2 - 10.1080/24701394.2016.1258405
DO - 10.1080/24701394.2016.1258405
M3 - Artículo
C2 - 28116960
SN - 2470-1394
VL - 29
SP - 136
EP - 146
JO - Mitochondrial DNA Part A: DNA Mapping, Sequencing, and Analysis
JF - Mitochondrial DNA Part A: DNA Mapping, Sequencing, and Analysis
IS - 1
ER -