Results 31 to 40 of about 2,788 (258)
Abstract Geographical scale might be expected to impact significantly the efficiency of DNA barcoding as spatially comprehensive sampling provides opportunities to uncover intricate relationships among closely related species and to detect cryptic diversity for widespread taxa.
Weitao Chen +9 more
wiley +1 more source
Psalidodon jequitinhonhae was originally proposed as a variety of Tetragonopterus rutilus, based on the analysis of 14 specimens from the Jequitinhonha River, Brazil. In 1910 it was relocated in Astyanax, as A.
Victor de Queiroz +5 more
semanticscholar +1 more source
New phylogenetic insights into the African catfish families Mochokidae and Austroglanididae
Abstract Several hundred catfish species (order: Siluriformes) belonging to 11 families inhabit Africa, of which at least six families are endemic to the continent. Although four of those families are well‐known to belong to the ‘Big‐Africa clade’, no previous study has addressed the phylogenetic placement of the endemic African catfish family ...
Frederic D. B. Schedel +7 more
wiley +1 more source
Species delimitation reveals an underestimated diversity of Andean catfishes of the family Astroblepidae (Teleostei: Siluriformes) [PDF]
Catfishes of the family Astroblepidae form a group composed by 82 valid species of the genus Astroblepus inhabiting high-gradient streams and rivers throughout tropical portions of the Andean Cordillera.
Luz E. Ochoa +9 more
doaj +2 more sources
The Angiosperm Terrestrial Revolution and the origins of modern biodiversity
Summary Biodiversity today has the unusual property that 85% of plant and animal species live on land rather than in the sea, and half of these live in tropical rainforests. An explosive boost to terrestrial diversity occurred from c. 100–50 million years ago, the Late Cretaceous and early Palaeogene. During this interval, the Earth‐life system on land
Michael J. Benton +2 more
wiley +1 more source
The time‐calibrated molecular phylogeny and geographic range evolution of the Neotropical family Curimatidae show a Late Cretaceous origin in lowland basins of South America with subsequent colonization to upland basins at multiple times during the Cenozoic.
Bruno F. Melo +3 more
wiley +1 more source
Systematic variation in the pattern of gene paralog retention between the teleost superorders Ostariophysi and Acanthopterygii [PDF]
This work was funded by the Marine Alliance for Science and Technology for Scotland pooling initiative and Scottish Funding Council grant number HR09011.Teleost fish underwent whole-genome duplication around 450 Ma followed by diploidization and loss of ...
la Serrana, Daniel Garcia de +6 more
core +1 more source
The present study offers a broad comparative analysis of the dorsolateral head musculature in the Gymnotiformes, with detailed descriptions and illustrations of the dorsolateral head muscles of 83 species representing combined all valid genera.
L. Peixoto, M. D. De Pinna
semanticscholar +1 more source
Ontogeny of the specificity of gonadotropin receptors and gene expression in carp
The pituitary gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH), are the principle endocrine drivers of reproductive processes in the gonads of jawed vertebrates.
Lian Hollander-Cohen +3 more
doaj +1 more source
Although the vast majority of fossil catfish material is isolated elements such as fin spines, a number of fossil catfishes (Siluriformes) have been named based on articulated crania from Palaeogene formations of Africa.
Alison M. Murray, R. Holmes
semanticscholar +1 more source

