Results 31 to 40 of about 16,334 (253)

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

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

Multiple species delimitation approaches with COI barcodes poorly fit each other and morphospecies – An integrative taxonomy case of Sri Lankan Sericini chafers (Coleoptera: Scarabaeidae)

open access: yesEcology and Evolution, 2022
DNA taxonomy including barcoding and metabarcoding is widely used to explore the diversity in biodiversity hotspots. In most of these hotspot areas, chafers are represented by a multitude of species, which are well defined by the complex shape of male ...
Uda Gedara Sasanka Lakmali Ranasinghe   +5 more
doaj   +1 more source

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

Species delimitation and hybridization history of a hazel species complex

open access: yesAnnals of Botany, 2021
AbstractBackground and AimsHybridization increases species adaptation and biodiversity but also obscures species boundaries. In this study, species delimitation and hybridization history were examined within one Chinese hazel species complex (Corylus chinensis–Corylus fargesii).
Zhiqiang, Lu   +5 more
openaire   +3 more sources

Cytogenetic and genetic data support Crossodactylus aeneus Müller, 1924 as a new junior synonym of C. gaudichaudii Duméril and Bibron, 1841 (Amphibia, Anura) [PDF]

open access: yesGenetics and Molecular Biology, 2021
The nominal anuran species Crossodactylus gaudichaudii Duméril and Bibron, 1841 and Crossodactylus aeneus Müller, 1924 are indistinguishable based on adult and larval morphology, being subject of taxonomic doubts.
Stenio Eder Vittorazzi   +5 more
doaj   +1 more source

Use of RAD sequencing for delimiting species [PDF]

open access: yesHeredity, 2014
RAD-tag sequencing is a promising method for conducting genome-wide evolutionary studies. However, to date, only a handful of studies empirically tested its applicability above the species level. In this communication, we use RAD tags to contribute to the delimitation of species within a diverse genus of deep-sea octocorals, Chrysogorgia, for which few
Pante, Eric   +6 more
openaire   +4 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

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 ...
Jeet Sukumaran, L. Lacey Knowles
openaire   +2 more sources

Values, regulation, and species delimitation [PDF]

open access: yesZootaxa, 2018
Garnett and Christidis (2017) [hereafter GC] recently proposed that the International Union of the Biological Sciences should centrally regulate the taxonomy of complex organisms. Their proposal was met with much criticism (e.g. Hołyński 2017; Thomson et al., 2018), and perhaps most extensively from Raposo et al. (2017) in this journal. The main target
openaire   +2 more sources

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