Cryptic diversity of stygobiotic shrimp genus Xiphocaridinella Sadowsky, 1930 (Crustacea: Decapoda: Atyidae): the first case of species co-occurrence in the same cave system in the Western Caucasus

Zootaxa ◽  
2018 ◽  
Vol 4441 (2) ◽  
pp. 201 ◽  
Author(s):  
IVAN MARIN
Keyword(s):  
Morphological Analysis ◽  
Genetic Data ◽  
Cryptic Diversity ◽  
Western Caucasus ◽  
Genetic Lineages ◽  
Karst Caves ◽  
Cave System ◽  
First Case ◽  
The Western Caucasus ◽  
A New Species

DNA barcoding of stygobiotic shrimps of the genus Xiphocaridinella Sadowsky, 1930 (Crustacea: Decapoda: Atyidae) collected in underground streams flowing inside two neighboring large karst caves (Otap and Abrskil сaves) revealed the presence of two distinct genetic lineages representing the first case of species co-occurrence in the Western Caucasus. The paper presents the complete morphological re-description of stygobiotic atyid shrimp Xiphocaridinella ablaskiri (Birštein, 1939) and the description of a new species using genetic and morphological analysis. Other known cases of co-occurrence of several stygobiotic shrimp species in the same cave system as well as new genetic data (COI mtDNA) on Western Caucasian species of the genus Xiphocaridinella are discussed in the paper. 

Mayflies of the Caucasus Mountains. I. A new species of the genus Electrogena Zurwerra & Tomka, 1985

Zootaxa ◽  
2012 ◽  
Vol 3222 (1) ◽  
pp. 28
Author(s):  
PAVEL SROKA ◽  
ROMAN J. GODUNKO
Keyword(s):  
New Species ◽  
Habitat Preferences ◽  
Western Caucasus ◽  
Larval Biology ◽  
The Caucasus ◽  
Diagnostic Characteristics ◽  
The Western Caucasus ◽  
Standard Set ◽  
Critical Characteristics ◽  
A New Species

Based on the material recently collected in the Western Caucasus Mts., Russian Federation, Electrogena gibedede sp. nov.,new species from the genus Electrogena Zurwerra & Tomka, 1985 is described in detail. The morphological characteris-tics of the adults and larvae of the species are presented (adults of both sexes were reared from the larvae in the field). Thevariability of the species and critical characteristics distinguishing Electrogena gibedede sp. nov. from the remaining rep-resentatives of the genus (focusing mainly on Caucasian species) are described and discussed. In the description of thelarval morphology the standard set of diagnostic characteristics is used. Larval biology and habitat preferences are mentioned. An overview of the present state of knowledge of Electrogena species known from the Caucasus Mts. is provided.

scholarly journals Genetic Diversity in Diospyros Germplasm in the Western Caucasus Based on SSR and ISSR Polymorphism

Biology ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 341
Author(s):  
Lidia S. Samarina ◽  
Valentina I. Malyarovskaya ◽  
Stefanie Reim ◽  
Natalia G. Koninskaya ◽  
Alexandra O. Matskiv ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Data ◽  
Inter Simple Sequence Repeat ◽  
Issr Markers ◽  
Western Caucasus ◽  
The Western Caucasus ◽  
Genetic Clusters ◽  
Breeding Efficiency ◽  
Important Basis ◽  
Simple Sequence

Persimmon germplasm in the Western Caucasus represent one of the most northerly collections. In our study, 51 commercial cultivars of D. kaki, 3 accessions of D. virginiana and 57 D. lotus accessions from six geographically distant populations were investigated using 19 microsatellite and 10 inter simple sequence repeat (ISSR) markers. After STRUCTURE analysis, the single accessions of Diospyros were allocated to three genetic clusters. Genetic admixtures in the important genotypes of D. kaki were revealed, whereas D. lotus accessions showed no admixture with other genetic clusters. The correspondence of genetic data and phenotypical traits was estimated in the D. kaki collection. The most frost tolerant genotypes of the collection, such as “Mountain Rogers”, “Nikitskaya Bordovaya”, “Rossiyanka”, “MVG Omarova”, “Meader”, “Costata”, “BBG”, and “Jiro”, showed a high percentage of genetic admixtures and were grouped close to D. virginiana. Some of these genotypes are known to be interspecific hybrids with D. virginiana. A low level of genetic diversity between the distant D. lotus populations was revealed and it can be speculated that D. lotus was introduced to the Western Caucasus from a single germplasm source. These results are an important basis for the implementation of conservation measures, developing breeding strategies, and improving breeding efficiency.

scholarly journals A new species of the genus Acrotoma O. Boettger,1881 (Pulmonata, Clausiliidae)

2020 ◽  
Vol 30 (1) ◽  
pp. 41-44
Author(s):  
Muhamed Tanov
Keyword(s):  
New Species ◽  
Related Species ◽  
New Taxon ◽  
Western Caucasus ◽  
Closely Related Species ◽  
The Western Caucasus ◽  
A New Species

A new species Acrotoma ( Acrotomina ) mallabica sp. nov. from the Western Caucasus is described. The morpho-anatomical relations of the new taxon with closely related species are discussed.

scholarly journals New genetic data reveals a new species of Zospeum in Bosnia (Gastropoda, Ellobioidea, Carychiinae)

ZooKeys ◽  
2021 ◽  
Vol 1071 ◽  
pp. 175-193
Author(s):  
Thomas Inäbnit ◽  
Adrienne Jochum ◽  
Raijko Slapnik ◽  
Eike Neubert
Keyword(s):  
New Species ◽  
Research Group ◽  
Classification System ◽  
Genetic Data ◽  
Potential Candidate ◽  
New Classification ◽  
Genetic Analyses ◽  
Genetic Lineages ◽  
Phylogenetic Framework ◽  
A New Species

Recent integrative investigations of the terrestrial ellobiid genus, Zospeum, have revealed significant findings concerning its Alpine-Dinaric evolution and taxonomy. Due to the expected discrepancy between the useful, but limited, 1970s’ classification system based on shell data and the results of recent genetic analyses in the latest investigation, a revision of the entire radiation was undertaken, and a new classification system was devised by the present authors in an earlier paper. Concurrent to this work, molecular sequences from two Austrian caves were published independently of our revision by another research group. By incorporating these genetic data within our phylogenetic framework here, we show that the Austrian individuals are genetically most similar to Zospeum amoenum and consequently, classify them within that species. We additionally reveal two new genetic lineages from the largely under-sampled southern extension of Zospeum’s known distributional range. The first lineage, deriving from the region of Dubrovnik, Croatia, is a potential candidate for genetically clarifying Zospeum troglobalcanicum. The second lineage derives from the municipality of Tomislavgrad, Bosnia-Herzegovina and is herein, described a new species: Zospeum simplex Inäbnit, Jochum & Neubert, sp. nov.

scholarly journals Niphargus dancaui sp. nov. (Amphipoda, Niphargidae) – a new species thriving in sulfidic groundwaters in southeastern Romania

2015 ◽  
Author(s):  
Traian Brad ◽  
Cene Fišer ◽  
Jean-François Flot ◽  
Serban M. Sarbu
Keyword(s):  
Morphological Analysis ◽  
Central Italy ◽  
Northern Italy ◽  
28S Rrna ◽  
Cave System ◽  
Movile Cave ◽  
The Town ◽  
Interpopulational Variability ◽  
A New Species ◽  
Rrna Sequences

Niphargus dancaui sp. nov., previously referred to as Niphargus cf. stygius, was sampled from various groundwater sites in and near the town of Mangalia (SE Romania) and described with Movile Cave (a sulfidic, chemoautotrophically based ecosystem) as type locality. A short comparison with Niphargus stygius specimens from Slovenia was made, together with a morphological analysis of interpopulational variability. Males of N. dancaui sp. nov. were relatively large (17 mm), with long antennae, pereiopods and uropod III. Females were slightly smaller, with shorter antennae, pereiopods and uropod III. Interpopulational variability was noticed in the chaetotaxy of the telson lobes and uropod III. N. dancaui sp. nov. is morphologically very close to N. lessiniensis and N. tridentinus, two species present in northern Italy, but distinct genetically from them based on 28S rRNA sequences. Instead, the closest relative of N. dancaui sp. nov. sequenced so far for this marker is N. montanarius, which inhabits a sulfidic cave system in central Italy. The work presented here contributes to our knowledge of groundwater crustacean biodiversity in general and of the systematics of the genus Niphargus in particular.

Integrative taxonomy of giant crested Eusirus in the Southern Ocean, including the description of a new species (Crustacea: Amphipoda: Eusiridae)

2020 ◽  
Author(s):  
Marie L Verheye ◽  
Cédric D’Udekem D’Acoz
Keyword(s):  
New Species ◽  
Species Diversity ◽  
Morphological Analysis ◽  
Integrative Taxonomy ◽  
Putative Species ◽  
Species Complexes ◽  
Statistical Parsimony ◽  
Bayesian Implementation ◽  
A New Species ◽  
Giant Species

Abstract Among Antarctic amphipods of the genus Eusirus, a highly distinctive clade of giant species is characterized by a dorsal, blade-shaped tooth on pereionites 5–7 and pleonites 1–3. This lineage, herein named ‘crested Eusirus’, includes two potential species complexes, the Eusirus perdentatus and Eusirus giganteus complexes, in addition to the more distinctive Eusirus propeperdentatus. Molecular phylogenies and statistical parsimony networks (COI, CytB and ITS2) of crested Eusirus are herein reconstructed. This study aims to formally revise species diversity within crested Eusirus by applying several species delimitation methods (Bayesian implementation of the Poisson tree processes model, general mixed Yule coalescent, multi-rate Poisson tree processes and automatic barcode gap discovery) on the resulting phylogenies. In addition, results from the DNA-based methods are benchmarked against a detailed morphological analysis of all available specimens of the E. perdentatus complex. Our results indicate that species diversity of crested Eusirus is underestimated. Overall, DNA-based methods suggest that the E. perdentatus complex is composed of three putative species and that the E. giganteus complex includes four or five putative species. The morphological analysis of available specimens from the E. perdentatus complex corroborates molecular results by identifying two differentiable species, the genuine E. perdentatus and a new species, herein described as Eusirus pontomedon sp. nov.

scholarly journals Molecular Phylogeny and Morphological Analysis Support a New Species and New Synonymy in Iranian Astragalus (Leguminosae)

PLoS ONE ◽  
2016 ◽  
Vol 11 (3) ◽  
pp. e0149726 ◽  
Author(s):  
Ali Bagheri ◽  
Ali Asghar Maassoumi ◽  
Mohammad Reza Rahiminejad ◽  
Frank R. Blattner
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Morphological Analysis ◽  
New Synonymy ◽  
A New Species
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