Results 1 to 10 of about 174,228 (294)

Copepod cryptic species as aquatic invaders

Limnology and Freshwater Biology, 2022
Abstract. The dispersal of aquatic organisms has especially increased since the 19th century, mainly due to the introduction of metal ships with ballast compartments or with birds. Along with easily visible aquatic organisms, there are invasions of less noticeable aquatic organisms, like copepods, which can mainly be recognized by experts.
V. Alekseev, N. Sukhikh
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A practical implementation of large transcriptomic data analysis to resolve cryptic species diversity problems in microbial eukaryotes

BMC Evolutionary Biology, 2018
Background Transcriptome sequencing has become a method of choice for evolutionary studies in microbial eukaryotes due to low cost and minimal sample requirements.
Yonas I. Tekle, Fiona C. Wood
doaj   +1 more source

Delimiting cryptic species within the brown-banded bamboo shark, Chiloscyllium punctatum in the Indo-Australian region with mitochondrial DNA and genome-wide SNP approaches

BMC Ecology and Evolution, 2021
Background Delimiting cryptic species in elasmobranchs is a major challenge in modern taxonomy due the lack of available phenotypic features. Employing stand-alone genetics in splitting a cryptic species may prove problematic for further studies and for ...
Fahmi, Ian R. Tibbetts, Michael B. Bennett, Christine L. Dudgeon   +3 more
doaj   +1 more source

Hyper-Cryptic Marine Meiofauna: Species Complexes in Nemertodermatida

PLoS ONE, 2014
Nemertodermatida are microscopically small, benthic marine worms. Specimens of two nominal species, Sterreria psammicola and Nemertinoides elongatus from 33 locations worldwide were sequenced for three molecular markers. Species delimitation and validation was done using gene trees, haplotype networks and multilocus Bayesian analysis.
Meyer-wachsmuth, Inga, Galletti, Marco Curini, Jondelius, Ulf   +2 more
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Complex taxonomy and global phylogeography of the well-known tropical earthworm Pontoscolex corethrurus [PDF]

, 2018
Few earthworm species are peregrine and among them, Pontoscolex corethrurus is the most well-known. Probably native from the Guyana shield, this earthworm is nowadays distributed worldwide, in the tropical and sub-tropical zones.
Anderson, F., Baretta, D., Barois, Isabelle, Bartz, Marie L.C., Brown, George G., Chang, C.H., Chen, J.H., Coulis, Mathieu, Cunha, L., da Silva, E., Decaëns, Thibaud, Dupont, Lise, James, S., Lapied, E., Lemmon, A.R., Rougerie, Rodolphe, Roy, Virginie, Stanton, D.W.G., Taheri, S., Williams, B.W.   +19 more
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An inordinate fondness?: the number, distributions, and origins of diatom species [PDF]

, 2013
The number of extant species of diatoms is estimated here to be at least 30,000 and probably ca. 100,000, by extrapolation from an eclectic sample of genera and species complexes.
Mann, David G, Vanormelingen, Pieter
core   +1 more source

The multilevel organismal diversity approach deciphers difficult to distinguish nudibranch species complex

Scientific Reports, 2021
Species identification is a key procedure for broad-scoped ecological, phylogeographic and evolutionary studies. However, to perform a taxonomic study in the molecular era is a complicated task that has many pitfalls.
Tatiana A. Korshunova, Floor M. F. Driessen, Bernard E. Picton, Alexander V. Martynov   +3 more
doaj   +1 more source

A new species of Meligethes Stephens from China and additional data on members of the M. chinensis species-complex (Coleoptera: Nitidulidae, Meligethinae) [PDF]

, 2017
Meligethes (Odontogethes) inexpectatus sp. n. is described from China, Sichuan Province. The new species is based on a female specimen previously incorrectly referred to as Meligethes scrobescens Chen, Lin, Huang & Yang, 2015, which was recently ...
Audisio, Paolo, Cline, Andrew Richard, Huang, Min, Liu, Meike, Sabatelli, Simone   +4 more
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A preliminary phylogeographic study of Flavopunctelia and Punctelia inferred from rDNA ITS-sequences [PDF]

, 2005
A preliminary phylogeny of the genera Flavopunctelia and Punctelia is presented. Genus and species delimitations have been investigated using ITS rDNA-sequencing of populations from different continents.
Adler, Monica Teresa, Aptroot, A., Feuerer, T., Herber, B., Kärnefelt, Ingvar, Thell, Arne   +5 more
core  

The Plasmid Mobilome of the Model Plant-Symbiont Sinorhizobium meliloti: Coming up with New Questions and Answers [PDF]

, 2014
Rhizobia are Gram-negative Alpha- andBetaproteobacteria living in the underground that have theability to associate with legumes for the establishment ofnitrogen-fixing symbioses.Sinorhizobium melilotiinparticular—the symbiont ofMedicago,Melilotus ...
Lagares, Antonio, Pistorio, Mariano, Sanjuán Pinilla, Juan   +2 more
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