Results 41 to 50 of about 69,851 (348)

Multispecies coalescent delimits structure, not species [PDF]

open access: yesProceedings of the National Academy of Sciences, 2017
Significance Despite its widespread application to the species delimitation problem, our study demonstrates that what the multispecies coalescent actually delimits is structure. The current implementations of species delimitation under the multispecies coalescent do not provide any way for distinguishing between structure due to population ...
Jeet Sukumaran, L. Lacey Knowles
openaire   +2 more sources

COI-Barcoding and Species Delimitation Assessment of Toad-Headed Agamas of the Genus Phrynocephalus (Agamidae, Squamata) Reveal Unrecognized Diversity in Central Eurasia

open access: yesDiversity, 2023
We provide a diversity assessment of the agamid genus Phrynocephalus Kaup, 1825. We analyze COI mtDNA barcodes from 385 individuals sampled all over Phrynocephalus range.
Evgeniya N. Solovyeva   +4 more
doaj   +1 more source

Recircumscription of the Nepenthes alata group (Caryophyllales: Nepenthaceae) in the Philippines : with four new species [PDF]

open access: yes, 2013
An overview of Nepenthes in the Philippines is presented. Four new species, Nepenthes extincta sp. nov., N. kitanglad sp. nov., N. kurata sp. nov. and N. leyte sp. nov.
Cheek, Martin, Jebb, Matthew
core   +3 more sources

Cox1 barcoding versus multilocus species delimitation: validation of two mite species with contrasting effective population sizes

open access: yesParasites & Vectors, 2019
Background The cox1-barcoding approach is currently extensively used for high-throughput species delimitation and discovery. However, this method has several limitations, particularly when organisms have large effective population sizes.
Pavel B. Klimov   +2 more
doaj   +1 more source

Is population subdivision different from speciation? From phylogeography to species delimitation

open access: yesEcology and Evolution, 2020
Species‐level diversity and the underlying mechanisms that lead to the formation of new species, that is, speciation, have often been confounded with intraspecific diversity and population subdivision.
Jen‐Pan Huang
doaj   +1 more source

Increasing the digital repository of DNA barcoding sequences of sand flies (Psychodidae: Phlebotominae) [PDF]

open access: yes, 2019
Sand f ly identification is complex because it depends on the expertise of the taxonomist. The females show subtle morphological differences and the occurrence of the species complexes are usual in this taxon.
Almiron, Walter Ricardo   +2 more
core   +1 more source

The BPP program for species tree estimation and species delimitation [PDF]

open access: yes, 2016
This paper provides an overview and a tutorial of the BPP program, which is a Bayesian MCMC program for analyzing multi-locus genomic sequence data under the multispecies coalescent model. An example dataset of five nuclear loci from the East Asian brown
Yang, Z
core   +1 more source

Accounting for molecular stochasticity in systematic revisions: species limits and phylogeny of Paroaria [PDF]

open access: yes, 2009
Different frameworks have been proposed for using molecular data in systematic revisions, but there is ongoing debate on their applicability, merits and shortcomings.
Ana L. Porzecanski, Liliana M. Dá
core   +2 more sources

The role of integrative taxonomy in the conservation management of cryptic species: the taxonomic status of endangered earless dragons (Agamidae: Tympanocryptis) in the grasslands of Queensland, Australia. [PDF]

open access: yesPLoS ONE, 2014
Molecular phylogenetics is increasingly highlighting the prevalence of cryptic species, where morphologically similar organisms have long independent evolutionary histories.
Jane Melville   +4 more
doaj   +1 more source

Unguided Species Delimitation Using DNA Sequence Data from Multiple Loci [PDF]

open access: yes, 2014
A method was developed for simultaneous Bayesian inference of species delimitation and species phylogeny using the multispecies coalescent model. The method eliminates the need for a user-specified guide tree in species delimitation and incorporates ...
Rannala, B, Yang, Z
core   +1 more source

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