Results 1 to 10 of about 1,761 (175)

Delimiting Species-Poor Data Sets using Single Molecular Markers: A Study of Barcode Gaps, Haplowebs and GMYC [PDF]

open access: yesSystematic Biology, 2015
Most single-locus molecular approaches to species delimitation available to date have been designed and tested on data sets comprising at least tens of species, whereas the opposite case (species-poor data sets for which the hypothesis that all individuals are conspecific cannot by rejected beforehand) has rarely been the focus of such attempts.
Simon Dellicour   +2 more
exaly   +6 more sources

Species Delimitation, Phylogenetic Relationships, and Temporal Divergence Model in the Genus Aeromonas [PDF]

open access: yesFrontiers in Microbiology, 2018
The definition of species boundaries constitutes an important challenge in biodiversity studies. In this work we applied the Generalized Mixed Yule Coalescent (GMYC) method, which determines a divergence threshold to delimit species in a phylogenetic ...
Maribel Farfán
exaly   +4 more sources

Factors affecting species delimitations with the GMYC model: insights from a butterfly survey

open access: yesMethods in Ecology and Evolution, 2013
Summary The generalized mixed Yule‐coalescent (GMYC) model has become one of the most popular approaches for species delimitation based on single‐locus data, and it is widely used in biodiversity assessments and phylogenetic community ecology. We here examine an array of factors affecting GMYC resolution (tree reconstruction method, taxon sampling ...
Talavera, Gerard   +2 more
core   +4 more sources

Genetic and Morphological Analyses Demonstrate That Schizolecis guntheri (Siluriformes: Loricariidae) Is Likely to Be a Species Complex

open access: yesFrontiers in Genetics, 2018
Schizolecis is a monotypic genus of Siluriformes widely distributed throughout isolated coastal drainages of southeastern Brazil. Previous studies have shown that fish groups found in isolated river basins tend to differentiate over time in the absence ...
Camila S Souza   +2 more
exaly   +3 more sources

Species Delimitation and Phylogenetic Relationships in Ectobiid Cockroaches (Dictyoptera, Blattodea) from China.

open access: yesPLoS ONE, 2017
We collected Ectobiidae cockroach specimens from 44 locations in the south of the Yangtze valley. We obtained 297 COI sequences specimens and carried out phylogenetic and divergence dating analyses, as well as species delimitation analysis using a ...
Yanli Che   +4 more
doaj   +2 more sources

Species delimitation of Apharyngostrigea Ciurea, 1927 (Digenea: Diplostomoidea) based on morphology and molecular data from the Neotropical region of Mexico [PDF]

open access: yesParasitology
The genus Apharyngostrigea comprises a group of diplostomoidean digeneans that parasitize birds of the family Ardeidae (herons), with approximately 20 species described worldwide.
Alejandra López-Jiménez   +2 more
doaj   +2 more sources

Two new species of the Drawida japonica species complex (Oligochaeta, Moniligastridae) from East Asia delimited by integrative taxonomic methods [PDF]

open access: yesZooKeys
The Drawida japonica (Michaelsen, 1892) species complex is a cosmopolitan earthworm group that is widely distributed throughout Asia, and has a high degree of diversity.
Min Liu   +5 more
doaj   +4 more sources

Effects of phylogenetic reconstruction method on the robustness of species delimitation using single‐locus data [PDF]

open access: yesMethods in Ecology and Evolution, 2014
1. Coalescent-based species delimitation methods combine population genetic and phylogenetic theory to provide an objective means for delineating evolutionarily significant units of diversity.
Cuong Q Tang   +2 more
exaly   +2 more sources

COI Insights into Diversity and Species Delimitation of Immature Stages of Non-Biting Midges (Diptera: Chironomidae) [PDF]

open access: yesInsects
The diversity of non-biting midges (Chironomidae, Diptera) remains an unresolved topic, with estimates of species numbers ranging from 6000 to 15,000 according to various authors.
Laurynas Stasiukynas   +5 more
doaj   +2 more sources

TMOD-38. GMYC: A NOVEL INDUCIBLE TRANSGENIC MODEL OF GROUP 3 MEDULLOBLASTOMA [PDF]

open access: yesNeuro-Oncology, 2018
Holger Weishaupt   +2 more
exaly   +2 more sources

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