Results 11 to 20 of about 16,334 (253)
Species delimitation in the cyanolichen genus Rostania [PDF]
Background In this study, we investigate species limits in the cyanobacterial lichen genus Rostania (Collemataceae, Peltigerales, Lecanoromycetes). Four molecular markers (mtSSU rDNA, β-tubulin, MCM7, RPB2) were sequenced and analysed with two coalescent-
Alica Košuthová +3 more
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Species delimitation in Amblyosyllis (Annelida, Syllidae).
Amblyosyllis is a worldwide distributed group of annelids mainly found in coastal environments. It is well known among the polychaete specialists mostly because of its notable beauty, showing bright colourful patterns and outstanding long and coiled ...
María Teresa Aguado +5 more
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Species delimitation and geography [PDF]
Abstract Despite the importance of the geographical arrangement of populations for the inference of species boundaries, only a few approaches that integrate spatial information into species delimitation have thus far been developed. Persistent differentiation of sympatric groups of individuals is the best criterion for species status.
Hausdorf B., Hennig C.
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Solving the Coral Species Delimitation Conundrum [PDF]
AbstractDistinguishing coral species is not only crucial for physiological, ecological, and evolutionary studies but also to enable effective management of threatened reef ecosystems. However, traditional hypotheses that delineate coral species based on morphological traits from the coral skeleton are frequently at odds with tree-based molecular ...
Ramírez-Portilla, Catalina +6 more
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Homoplasy as an Auxiliary Criterion for Species Delimitation [PDF]
Homoplasy is a sort of noise in phylogenetic reconstructions, due to the accumulation of backmutations, convergent evolution and horizontal gene transfer (HGT), which is considered the major trigger of homoplasy in microorganism for its massive presence.
Conti Angela +4 more
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Delimiting species in Basidiomycota: a review [PDF]
Species delimitation is one of the most fundamental processes in biology. Biodiversity undertakings, for instance, require explicit species concepts and criteria for species delimitation in order to be relevant and translatable. However, a perfect species concept does not exist for Fungi.
Cao, B. +27 more
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Delimiting Species in Recent Radiations [PDF]
Despite considerable effort from the systematics community, delimiting species boundaries in recent radiations remains a daunting challenge. We argue that genealogical approaches, although sometimes useful, may not solve this important problem, because recently derived species often have not had sufficient time to achieve monophyly. Instead, we suggest
H Bradley, Shaffer, Robert C, Thomson
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DNA barcoding and DNA‐based species delimitation are major tools in DNA taxonomy. Sampling has been a central debate in this context, because the geographical composition of samples affects the accuracy and performance of DNA barcoding.
Daniel Lukic +4 more
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Integrative species delimitation helps to find the hidden diversity of the leaf-litter frog Ischnocnema manezinho (Garcia, 1996) (Anura, Brachycephalidae), endemic to the southern Atlantic Forest [PDF]
Background The delimitation of cryptic species is a challenge for biodiversity conservation. Anurans show high cryptic diversity levels, and molecular species delimitation methods could help identify putative new species.
Caroline Batistim Oswald +4 more
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Fast genome-based delimitation of Enterobacterales species.
Average Nucleotide Identity (ANI) is becoming a standard measure for bacterial species delimitation. However, its calculation can take orders of magnitude longer than similarity estimates based on sampling of short nucleotides, compiled into so-called ...
Julie E Hernández-Salmerón +2 more
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