A comparative morphological investigation of otoliths from two species Antimora, A. microlepis and rostrata was conducted to identify distinguishing species-specific characteristics. Some the identified characters were shared between studied. Ontogenetic changes in otolith morphology morids studied evident small larger specimens. Otoliths small-sized individuals have shown same degree similarit...

The present study investigated the ability of DNA barcoding to reliably identify endemic freshwater species in Turkey, known as biodiversity hotspots. barcode region (652 bp) mitochondrial cytochrome c oxidase subunit I (COI) was used 153 individuals from 13 morphologically identified genus Alburnoides . Based on Kimura two-parameter (K2P) evolution model, average interspecific distance (0.0595...

The Hox genes encode transcription factors that play a key role in specifying body plans of metazoans. They are organized into clusters that contain up to 13 paralogue group members. The complex morphology of vertebrates has been attributed to the duplication of Hox clusters during vertebrate evolution. In contrast to the single Hox cluster in the amphioxus (Branchiostoma floridae), an inverteb...

Rax proteins comprise a small family of paired-type, homeodomain-containing transcription factors with essential functions in eye and forebrain development. While invertebrates possess only one Rax gene, vertebrates can have several Rax paralogue genes, but the evolutionary history of the members of the family has not been studied in detail. Here, we present a thorough analysis of the evolution...

component of the evolutionary transformation of functional design in ray-finned fishes (Actinopterygii). Documenting phylogenetic patterns in the structure of the paired and median fins, and interpreting the functional significance of such patterns, has been the subject of ongoing study by systematists, functional morphologists and hydrodynamicists (e.g. Breder, 1926; Harris, 1953; Aleev, 1969;...