نتایج جستجو برای: convict cichlid

تعداد نتایج: 2308  

Journal: :Molecular biology and evolution 2015
Julián Torres-Dowdall Frederico Henning Kathryn R Elmer Axel Meyer

The visual system in the colorful cichlid fishes from the African great lakes is believed to be important for their adaptive radiations. However, few studies have attempted to compare the visual system of radiating cichlid lineages with that of cichlids that have not undergone recent radiations. One such study published in this journal (Schott RK, Refvik SP, Hauser FE, López-Fernández H, Chang ...

Journal: :Current Biology 2012
Moritz Muschick Adrian Indermaur Walter Salzburger

The recurrent evolution of convergent forms is a widespread phenomenon in adaptive radiations (e.g., [1-9]). For example, similar ecotypes of anoles lizards have evolved on different islands of the Caribbean, benthic-limnetic species pairs of stickleback fish emerged repeatedly in postglacial lakes, equivalent sets of spider ecomorphs have arisen on Hawaiian islands, and a whole set of converge...

Journal: :Molecular ecology 2014
Paolo Franchini Carmelo Fruciano Maria L Spreitzer Julia C Jones Kathryn R Elmer Frederico Henning Axel Meyer

Determining the genetic bases of adaptations and their roles in speciation is a prominent issue in evolutionary biology. Cichlid fish species flocks are a prime example of recent rapid radiations, often associated with adaptive phenotypic divergence from a common ancestor within a short period of time. In several radiations of freshwater fishes, divergence in ecomorphological traits - including...

Journal: :Proceedings. Biological sciences 2016
Matthew D McGee Brant C Faircloth Samuel R Borstein Jimmy Zheng C Darrin Hulsey Peter C Wainwright Michael E Alfaro

Decoupling of the upper jaw bones--jaw kinesis--is a distinctive feature of the ray-finned fishes, but it is not clear how the innovation is related to the extraordinary diversity of feeding behaviours and feeding ecology in this group. We address this issue in a lineage of ray-finned fishes that is well known for its ecological and functional diversity--African rift lake cichlids. We sequenced...

Journal: :The Journal of heredity 2003
R C Albertson J T Streelman T D Kocher

East African cichlids exhibit an extraordinary level of morphological diversity. Key to their success has been a dramatic radiation in trophic biology, which has occurred rapidly and repeatedly in different lakes. In this report we take the first step in understanding the genetic basis of differences in cichlid oral jaw design. We estimate the effective number of genetic factors that control di...

2015
Britta S Meyer Adrian Indermaur Xenia Ehrensperger Bernd Egger Gaspard Banyankimbona Jos Snoeks Walter Salzburger

The species flocks of cichlid fishes in the East African Great Lakes are the largest vertebrate adaptive radiations in the world and illustrious textbook examples of convergent evolution between independent species assemblages. Although recent studies suggest some degrees of genetic exchange between riverine taxa and the lake faunas, not a single cichlid species is known from Lakes Tanganyika, ...

Journal: :Journal of experimental zoology. Part B, Molecular and developmental evolution 2006
Michael Lang Tsutomu Miyake Ingo Braasch Deborah Tinnemore Nicol Siegel Walter Salzburger Chris T Amemiya Axel Meyer

A BAC library was constructed from Astatotilapia burtoni, a haplochromine cichlid that is found in Lake Tanganyika, East Africa, and its surrounding rivers. The library was generated from genomic DNA of blood cells and comprises 96,768 individual clones. Its median insert size is 150 kb and the coverage is expected to represent about 14 genome equivalents. The coverage evaluation was based on g...

Journal: :Acta Aquatica 2023

The entry of alien predatory fish in Indonesian waters has a negative impact on local ecosystems Indonesia, foreign can spread disease, become main predators and cause imbalance the food chain. From this study, we report presence type Cichlasoma urophthalmus (Günther 1862) or Mayan Cichlid from tropical North America caught Kedung Ombo Reservoir, Grobokan Regency, Central Java. species identifi...

Journal: :Molecular biology and evolution 2002
Vera Klett Axel Meyer

We estimated a novel phylogeny of tilapiine cichlid fish (an assemblage endemic to Africa and the Near East) within the African cichlid fishes on the basis of complete mitochondrial NADH dehydrogenase subunit 2 (ND2) gene sequences. The ND2 (1,047 bp) gene was sequenced in 39 tilapiine cichlids (38 species and 1 subspecies) and in an additional 14 nontilapiine cichlid species in order to evalua...

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