Results 61 to 70 of about 4,231,448 (381)

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

Using Genealogical Concordance and Coalescent-Based Species Delimitation to Assess Species Boundaries in the Diaporthe eres Complex

open access: yesJournal of Fungi, 2021
DNA sequence analysis has been of the utmost importance to delimit species boundaries in the genus Diaporthe. However, the common practice of combining multiple genes, without applying the genealogical concordance criterion has complicated the robust ...
S. Hilário   +2 more
semanticscholar   +1 more source

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   +4 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

Quantitative criteria for species delimitation

open access: yesIbis, 2010
Species are the fundamental units of biology, ecology and conservation, and progress in these fields is therefore hampered by widespread taxonomic bias and uncertainty. Numerous operational techniques based on molecular or phenotypic data have been designed to overcome this problem, yet existing procedures remain subjective or inconsistent ...
Tobias, J   +5 more
openaire   +3 more sources

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

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

Beyond similarity: A network approach for identifying and delimiting biogeographical regions [PDF]

open access: yes, 2014
Biogeographical regions (geographically distinct assemblages of species and communities) constitute a cornerstone for ecology, biogeography, evolution and conservation biology.
Antonelli, Alexandre, Vilhena, Daril A.
core   +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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