Investigating the relations and mechanisms of coexistence among sympatric species is essential to comprehend their ecological roles in the food webs. In the present study, the diet and trophic interactions of 5 abundant teleost species coexisting in the northern Oman Sea were examined using stomach contents analyses. The cumulative prey curves showed that the sample size of each studied species...

BACKGROUND Teleost fishes do not have a vomeronasal organ (VNO), and their vomeronasal receptors (V1Rs, V2Rs) are expressed in the main olfactory epithelium (MOE), as are odorant receptors (ORs) and trace amine-associated receptors (TAARs). In this study, to obtain insights into the functional distinction among the four chemosensory receptor families in teleost fishes, their evolutionary patter...

Gene and whole genome duplications have profoundly shaped the structure and function of the vertebrate genome. Teleost fish, which comprise approximately 50% of all known vertebrate species, have undergone a third round of whole genome duplication (3R) above and beyond the two rounds of whole genome duplication shared by all vertebrates (2R). Most non-teleost vertebrates including tetrapods hav...

Gene and whole genome duplications have profoundly shaped the structure and function of the vertebrate genome. Teleost fish, which comprise approximately 50% of all known vertebrate species, have undergone a third round of whole genome duplication (3R) above and beyond the two rounds of whole genome duplication shared by all vertebrates (2R). Most non-teleost vertebrates including tetrapods hav...

Genome duplication, thought to have happened twice early in vertebrate evolution and a third time in teleost fishes, gives rise to gene paralogs that can evolve subfunctions or neofunctions via sequence and regulatory changes. To explore the evolution and functions of corticotropin-releasing hormone (CRH), we searched sequenced teleost genomes for CRH paralogs. Our phylogenetic and synteny anal...

Abstract Teleost fish exhibit extraordinary cognitive skills that are comparable to those of mammals and birds. Kin recognition based on olfactory visual imprinting requires neuronal circuits were assumed be necessarily dependent the interaction mammalian amygdala, hippocampus, isocortex, latter being a structure teleost lacking. We show teleosts—beyond having hippocampus pallial amygdala homol...

The Piwi-interacting RNA (piRNA) pathway is responsible for germline specification, gametogenesis, transposon silencing, and genome integrity. Transposable elements can disrupt genome and its functions. However, piRNA pathway evolution and its adaptation to transposon diversity in the teleost fish remain unknown. This article unveils evolutionary scene of piRNA pathway and its association with ...