Combining morphology, scanning electron microscopy, and molecular phylogeny to evaluate the taxonomic power of scales in genusAphaniusNardo, 1827 (Teleostei: Cyprinodontidae)
| Autor: | Azad Teimori, Mahbubeh Shaker Golmakan, Mina Motamedi |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Teleostei biology Scanning electron microscope Aphanius SH1-691 Morphology (biology) Aquatic Science phylogeny biology.organism_classification cyprinodontiformes 010603 evolutionary biology 01 natural sciences 03 medical and health sciences 030104 developmental biology Evolutionary biology Genus scale topology Molecular phylogenetics lepidont Aquaculture. Fisheries. Angling geometric morphometrics iran |
| Zdroj: | Archives of Polish Fisheries, Vol 25, Iss 2, Pp 77-87 (2017) |
| ISSN: | 2083-6139 |
| Popis: | Scale morphology and its structural details were studied with morphometry, geometric morphometrics, and scanning electron microscopy in five IranianAphaniusspecies and examined comparatively with molecular phylogeny. Scales were cycloid and circular inA. farsicusTeimori, Esmaeili & Reichenbacher andA. vladykoviCoad, cycloid and polygonal inA. isfahanensisHrbek, Keivany & Coad andA. sophiae(Heckel), and were spined and polygonal inA. disparRüppell. Univariate analysis indicated that the relative length of anterior margin of radii played a significant role in the separation of some species studied (P < 0.05). Canonical Variates Analysis (CVA) based on seven landmarks showed clear separation between the Iranian inland and inland-relatedAphaniusspecies (IIRAS) group (four species) and the brackish water species (A. dispar). The lepidonts were conical in the IIRAS group with the exception ofA. isfahanensis(rounded) and were rounded inA. dispar. Based on the basal position of the brackish waterAphaniusspecies in the phylogenetic trees of the genusAphanius,it can be assumed that the presence of rounded lepidonts was a primary state in their scales or is the result of convergent evolution. Also, the polygonal state in the scales ofAphaniusspecies was a primitive shared character state. |
| Databáze: | OpenAIRE |
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