Results 21 to 30 of about 38,423 (309)

Diversity in visual sensitivity across Neotropical cichlid fishes via differential expression and intraretinal variation of opsin genes

open access: yesMolecular Ecology, 2021
The visual system of vertebrates has greatly contributed to our understanding of how different molecular mechanisms shape adaptive phenotypic diversity.
Julián Torres‐Dowdall   +3 more
semanticscholar   +1 more source

Manipulation of the Tyrosinase gene permits improved CRISPR/Cas editing and neural imaging in cichlid fish

open access: yesScientific Reports, 2021
Direct tests of gene function have historically been performed in a limited number of model organisms. The CRISPR/Cas system is species-agnostic, offering the ability to manipulate genes in a range of models, enabling insights into evolution, development,
Cheng-Yu Li   +4 more
semanticscholar   +1 more source

How Cichlids Diversify

open access: yesScience, 2012
The extreme diversity of cichlid fishes in East Africa helps to elucidate how and why organisms diversify.
Walter Salzburger, M. Emília Santos
openaire   +5 more sources

Phylogenomics of trophically diverse cichlids disentangles processes driving adaptive radiation and repeated trophic transitions

open access: yesEcology and Evolution, 2022
Cichlid fishes of the tribe Tropheini are a striking case of adaptive radiation, exemplifying multiple trophic transitions between herbivory and carnivory occurring in sympatry with other established cichlid lineages. Tropheini evolved highly specialized
Pooja Singh   +9 more
doaj   +1 more source

The Evolutionary Dynamics of the Mitochondrial tRNA in the Cichlid Fish Family

open access: yesBiology, 2022
The mitochondrial transfer RNA genes (tRNAs) attract more attention due to their highly dynamic and rapidly evolving nature. The current study aimed to detect and evaluate the dynamics, characteristic patterns, and variations of mitochondrial tRNAs.
Yosur G. Fiteha, Mahmoud Magdy
doaj   +1 more source

Dynamics of sex chromosome evolution in a rapid radiation of cichlid fishes

open access: yesbioRxiv, 2020
Sex is a fundamental trait that is determined, depending on the species, by different environmental and/or genetic factors, including various types of sex chromosomes.
Athimed El Taher   +4 more
semanticscholar   +1 more source

Molecular and fossil evidence place the origin of cichlid fishes long after Gondwanan rifting. [PDF]

open access: yes, 2013
Cichlid fishes are a key model system in the study of adaptive radiation, speciation and evolutionary developmental biology. More than 1600 cichlid species inhabit freshwater and marginal marine environments across several southern landmasses.
Alex Dornburg   +9 more
core   +1 more source

The opsin genes of amazonian cichlids [PDF]

open access: yesMolecular Ecology, 2017
AbstractVision is a critical sense for organismal survival with visual sensitivities strongly shaped by the environment. Some freshwater fishes with a Gondwanan origin are distributed in both South American rivers including the Amazon and African rivers and lakes. These different habitats likely required adaptations to murky and clear environments.
Escobar-Camacho, Daniel   +3 more
openaire   +4 more sources

Genome-wide protein phylogenies for four African cichlid species

open access: yesBMC Evolutionary Biology, 2018
Background The thousands of species of closely related cichlid fishes in the great lakes of East Africa are a powerful model for understanding speciation and the genetic basis of trait variation.
Ajay Ramakrishnan Varadarajan   +3 more
doaj   +1 more source

Altering an extended phenotype reduces intraspecific male aggression and can maintain diversity in cichlid fish [PDF]

open access: yes, 2013
Reduced male aggression towards different phenotypes generating negative frequency-dependent intrasexual selection has been suggested as a mechanism to facilitate the invasion and maintenance of novel phenotypes in a population.
Croft, Guy E.   +2 more
core   +1 more source

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