Presence of <em>Notahypsibius pallidoides</em> (Tardigrada: Hypsibiidae) in the fauna of Russia confirmed with the methods of DNA barcoding

Abstract

A brief report is given on the tardigrade species Notahypsibius pallidoides, discovered in a moss cushion in the vicinity of Saint Petersburg. Morphological identification of the species is supported with the analysis of obtained sequences of nuclear and mitochondrial DNA barcode genes (ITS-2 and COI). The current state of knowledge of Russian fauna of Tardigrada is characterised, and all available data on the distribution of Notahypsibius pallidoides and its genetic variability are summarised. The data obtained in this study by methods of DNA barcoding demonstrated that studied specimens of the tardigrada population isolated in Russia belong to the same species (Notahypsibius pallidoides) as the control specimens isolated in Austria though represent another haplotype thus confirming the presence of Notahypsibius pallidoides for the fauna of Russia.

First faunistic investigation of semiterrestrial tardigrade fauna of North-West Russia using the method of DNA barcoding

“…Two of them confirm the presence of two species of the genus Milnesium -M. tardigradum and M. inceptum Morek, Suzuki, Schill, Georgiev, Yankova, Marley et Michalczyk, 2019(Morek, Michalczyk, 2020Maskin et al, 2021) in Russian far East. The third publication confirms the presence of recently redescribed species Notahypsibius pallidoides (Pilato et al, 2011) in the fauna of North-West Russia (Tumanov, 2021).…”

A Strategy to Provide a Present and Future Scenario of Mexican Biodiversity of Tardigrada

“…Based on this list, we recognized that 28.3% of the taxa have not been determined at a specific level, and in others, it has not been possible to delimit new taxa based solely on morphological characteristics, which is evidence of the absence of an integrative strategy for the study of tardigrades diversity. The use of integrative methods that include different types of observation of morphological characters, and molecular markers focused on the delimitation of taxa, has been documented in other works for the phylum [18,19,[103][104][105]. The use of a multidisciplinary approach that takes advantage of the complementarity between different techniques of analysis of morphological [106] and genetic variation analyses [107] will allow clarifying the status of the taxa in Mexico and will provide more robust identifications and hypotheses testing of species.…”

Reaching the Monophyly: Re-Evaluation of the Enigmatic Species Tenuibiotus hyperonyx (Maucci, 1983) and the Genus Tenuibiotus (Eutardigrada)

“…The acquisition and accumulation of genetic data tightly associated with phenotypic information enhanced studies on two major subjects in tardigrade taxonomy: (i) The recognition and disentanglement of cryptic/pseudocryptic diversity, e.g., [13][14][15][16][17][18][19] and (ii) the construction of comprehensive molecular phylogenies at the family level or higher that considerably impacted tardigrade systematics, e.g., [20][21][22][23][24][25][26][27][28][29][30]. Notably, there were not only integrative descriptions of new species for science that have contributed greatly to these subjects' investigation, but also revisional notes with updated diagnoses and new information on already-known taxa, e.g., [31][32][33][34][35][36][37]. All these contributions explicitly underline the importance of being integrative when studying tardigrade systematics [38,39].…”