Results 1 to 10 of about 16,811 (235)

Dynamic co-evolution of transposable elements and the piRNA pathway in African cichlid fishes [PDF]

open access: yesGenome Biology
Background East African cichlid fishes have diversified in an explosive fashion, but the (epi)genetic basis of the phenotypic diversity of these fishes remains largely unknown.
Miguel Vasconcelos Almeida   +16 more
doaj   +3 more sources

Evolution of regulatory networks associated with traits under selection in cichlids

open access: yesGenome Biology, 2021
Background Seminal studies of vertebrate protein evolution speculated that gene regulatory changes can drive anatomical innovations. However, very little is known about gene regulatory network (GRN) evolution associated with phenotypic effect across ...
Tarang K. Mehta   +11 more
doaj   +2 more sources

Oca2 targeting using CRISPR/Cas9 in the Malawi cichlid Astatotilapia calliptera

open access: yesRoyal Society Open Science, 2022
Identifying genetic loci underlying trait variation provides insights into the mechanisms of diversification, but demonstrating causality and characterizing the role of genetic loci requires testing candidate gene function, often in non-model species ...
Bethan Clark   +8 more
doaj   +1 more source

Species of Ergasilus von Nordmann, 1832 (Copepoda: Ergasilidae) from cichlid fishes in Lake Tanganyika

open access: yesParasitology, 2023
Ergasilus (von Nordmann, 1832) (Ergasilidae) is a species-rich group of parasitic copepods with a wide distribution in freshwater, marine and brackish environments. Up to now, 9 species of Ergasilus are known from cichlid fishes in Africa. In this study,
Robert Míč   +2 more
doaj   +1 more source

Evolution, inactivation and loss of short wavelength‐sensitive opsin genes during the diversification of Neotropical cichlids

open access: yesMolecular Ecology, 2021
Natural variation in the number, expression and function of sensory genes in an organism's genome is often tightly linked to different ecological and evolutionary forces. Opsin genes, which code for the first step in visual transduction, are ideal models
Frances E Hauser   +5 more
semanticscholar   +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

Cichlids and stingrays can add and subtract ‘one’ in the number space from one to five

open access: yesScientific Reports, 2022
The numerical understanding of cichlids and stingrays was examined regarding addition and subtraction abilities within the number space of one to five. Experiments were conducted as two-alternative forced-choice experiments, using a delayed matching to ...
V. Schluessel   +3 more
doaj   +1 more source

Testing the performance of environmental DNA metabarcoding for surveying highly diverse tropical fish communities: A case study from Lake Tanganyika

open access: yesEnvironmental DNA, 2020
Background and Aims Environmental DNA (eDNA) metabarcoding provides a highly sensitive method of surveying freshwater fish communities, although studies to date have largely been restricted to temperate ecosystems.
Christopher J. Doble   +6 more
doaj   +1 more source

Elaboration, development, and installation of the first animal skin bank in Brazil for the treatment of burns and wounds [PDF]

open access: yesRevista Brasileira de Cirurgia Plástica, 2019
Introduction: The production and distribution of human skin by Brazilian skin banks is insufficient to meet the country's demand, supplying less than 1% of the need for treating burn victims.
Edmar Maciel Lima   +5 more
doaj   +1 more source

Mitochondrial genome annotation and phylogenetic placement of Oreochromis andersonii and O. macrochir among the cichlids of southern Africa. [PDF]

open access: yesPLoS ONE, 2018
Genetic characterization of southern African cichlids has not received much attention. Here, we describe the mitogenome sequences and phylogenetic positioning of Oreochromis andersonii and O. macrochir among the African cichlids.
Ian Bbole   +3 more
doaj   +1 more source

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