Results 21 to 30 of about 17,994 (219)

Evolutionary divergence of 3’ UTRs in cichlid fishes

open access: yesBMC Genomics, 2018
Background Post-transcriptional regulation is crucial for the control of eukaryotic gene expression and might contribute to adaptive divergence. The three prime untranslated regions (3’ UTRs), that are located downstream of protein-coding sequences, play
Peiwen Xiong   +3 more
doaj   +1 more source

Speciation in sympatry with ongoing secondary gene flow and a potential olfactory trigger in a radiation of Cameroon cichlids

open access: yesMolecular Ecology, 2018
The process of sympatric speciation in nature remains a fundamental unsolved problem. Cameroon crater lake cichlid radiations were long regarded as one of the most compelling examples; however, recent work showed that their origins were more complex than
J. Poelstra, E. Richards, C. Martin
semanticscholar   +1 more source

Biological Diversity and Resilience: Lessons from the Recovery of Cichlid Species in Lake Victoria

open access: yesEcology and Society, 2011
A fundamental feature of the Anthropocene is the inexorable erosion of the self-repairing capacity or adaptive renewal of natural systems because of natural perturbation, exploitation, or management failure.
Alex O. Awiti
doaj   +1 more source

Exon-based phylogenomics strengthens the phylogeny of Neotropical cichlids and identifies remaining conflicting clades (Cichliformes: Cichlidae: Cichlinae)

open access: yesbioRxiv, 2017
The phenotypic, geographic, and species diversity of cichlid fishes have made them a group of great interest for studying evolutionary processes. Here we present a targeted-exon next-generation sequencing approach for investigating the evolutionary ...
K. Ilves   +2 more
semanticscholar   +1 more source

Feeding selectivity and growth of Nile tilapia (Oreochromis niloticus L.) fed on temperate-zone aquatic macrophytes

open access: yesCzech Journal of Animal Science, 2004
Feeding selectivity of Nile tilapia (Oreochromis niloticus L.) juveniles (9.3-20.9 g) to four aquatic macrophyte species and tilapia growth were studied in 4 consecutive experiments. Plant diet was provided to 8 tanks containing 20 fishes for 5 days. The
I. Šetlíková, Z. Adámek
doaj   +1 more source

Nile tilapia skin xenograft versus silver-based hydrofiber dressing in the treatment of second-degree burns in adults [PDF]

open access: yesRevista Brasileira de Cirurgia Plástica, 2019
Introduction: Recent studies have suggested the use of biological dressings made of aquatic animals as biomaterials in regenerative medicine since they demonstrate good adherence to the wound bed.
Marcelo José Borges de Miranda   +1 more
doaj   +1 more source

Prevalence, intensity and abundance of endoparasites in Oreochromis niloticus and Tilapia zilli (Pisces: Cichlidae) from Asa Dam, Ilorin, Nigeria

open access: yesCuadernos de investigación UNED, 2015
Disease is an important factor in fisheries, affecting both wild and cultured species. Using standard parasitological techniques we determined the prevalence, mean intensity and abundance of endoparasites from 250 specimens of two cichlids, Oreochromis ...
C. Ebube Amaechi
doaj   +1 more source

Microcomputed tomography used to link head morphology and observed feeding behavior in cichlids of Lake Malaŵi

open access: yesEcology and Evolution, 2021
Cichlids inhabiting the Great Lakes of Africa have radiated extremely rapidly, with Lake Malaŵi harboring some 850 species. This rapid radiation may be linked to the diversity in behaviors, sexual selection, and phenotypic plasticity.
Adrianus F. Konings   +2 more
doaj   +1 more source

Divergence in larval jaw gene expression reflects differential trophic adaptation in haplochromine cichlids prior to foraging

open access: yesBMC Evolutionary Biology, 2019
Understanding how variation in gene expression contributes to morphological diversity is a major goal in evolutionary biology. Cichlid fishes from the East African Great lakes exhibit striking diversity in trophic adaptations predicated on the functional
E. P. Ahi   +4 more
semanticscholar   +1 more source

Multispecies Outcomes of Sympatric Speciation after Admixture with the Source Population in Two Radiations of Nicaraguan Crater Lake Cichlids

open access: yesPLoS Genetics, 2016
The formation of species in the absence of geographic barriers (i.e. sympatric speciation) remains one of the most controversial topics in evolutionary biology.
Andreas F. Kautt   +2 more
semanticscholar   +1 more source

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