Evolutionary mechanisms of the Paratethys Sea and its separation into the Black Sea and Caspian Sea

Esin, Nikolay; Yanko-Hombach, Valentina

doi:10.1016/j.quaint.2016.06.019

Cited by 21 publications

(8 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Kuban barbel B. kubanicus Berg, 1912 inhabits the Kuban drainage, which is the extended riverine system of West Ciscaucasia. This species was also detected in the Manych system due to recent water diversion from the Kuban tributaries via canals (Poznyak, 1987); the Manych valley served in the past as a connecting passage between the Caspian and Black Sea basins (Esin et al, 2016). The Rioni barbel B. rionicus Kamensky, 1899, was described as originating from the Rioni basin, West Transcaucasia, but was later found to be synonymous with B. escherichii Steindachner, 1897 by Berg (1914).…”

Section: Introductionmentioning

confidence: 99%

Phylogeny, phylogeography and hybridization of Caucasian barbels of the genusBarbus(Actinopterygii, Cyprinidae)

Левин

Gandlin

Simonov

et al. 2018

Preprint

View full text Add to dashboard Cite

The phylogenetic relationships and the phylogeography of seven species of Caucasian barbels of the genus Barbus s. str. were studied based on extended geographic coverage and the use of mtDNA and nDNA markers. Based on the 26 species studied, matrilineal phylogeny of the genus Barbus is composed of two clades: a) West European clade, and b) Central and East European clade. The latter comprises two subclades: b1) Balkanian subclade, and b2) Ponto-Caspian subclade, which includes 11 lineages mainly from Black and Caspian Sea drainages. Caucasian barbels are not monophyletic and are subdivided into two groups. The Black Sea group encompasses species from tributaries of the Black Sea, including the reinstalled B. rionicus, except for B. kubanicus. The Caspian group includes B. ciscaucasicus, B. cyri (with B. goktschaicus, which might be synonymized with B. cyri), B. lacerta from the Tigris-Euphrates basin and B. kubanicus from the Kuban basin. The genetic structure of Black Sea barbels was influenced by glaciation-deglaciation periods accompanied by freshwater phases, periods of migration and the colonization of Black Sea tributaries. Intra-and intergeneric hybridization among Caucasian barbines was revealed for the first time. In the present study, we report the discovery of B. escherichii in the Kuban basin, where only B. kubanicus was known to inhabit.Hybrids of these two species were detected based on both mtDNA and nDNA markers.Remarkably, the Kuban population of B. escherichii is distant to closely located conspecific populations, and we consider it as a relic. We reveal the intergeneric hybridization between evolutionary tetraploid (2n=100) B. goktschaicus and evolutionary hexaploid (2n=150) Capoeta sevangi in Lake Sevan.

show abstract

Section: Introductionmentioning

confidence: 99%

Phylogeny, phylogeography and hybridization of Caucasian barbels of the genusBarbus(Actinopterygii, Cyprinidae)

Левин

Gandlin

Simonov

et al. 2018

Preprint

View full text Add to dashboard Cite

show abstract

“…At its greatest extent, Lake Urmia was the largest lake in the Middle East and the sixth-largest hypersaline lake on Earth 10 . Despite its distance from the sea, based on palaeogeographic studies, the lake has marine origin as a remnant of the Paratethys sea, which started to dry from the Pleistocene epoch, leaving Lake Urmia, Aral and the Caspian Sea 11 . In terms of salinity, Lake Urmia is characterized by an extreme salinity, about 27% (w/v), with a high level of Cl − , Na + , SO 4 2− , Mg 2+ , K + , and Ca 2+ ions.…”

Section: Introductionmentioning

confidence: 99%

Hypersaline Lake Urmia: a potential hotspot for microbial genomic variation

Kheiri

Mehrshad

Pourbabaee

et al. 2023

Sci Rep

View full text Add to dashboard Cite

Lake Urmia located in Iran is a hypersaline environment with a salinity of about 27% (w/v). Metagenomic analyses of water samples collected from six locations in the lake exhibited a microbial community dominated by representatives of the family Haloferacaceae (69.8%), mainly those affiliated to only two genera, Haloquadratum (59.3%) and Halonotius (9.1%). Similar to other hypersaline lakes, the bacterial community was dominated by Salinibacter ruber (23.3%). Genomic variation analysis by inspecting single nucleotide variations (SNVs) and insertions/deletions (INDELs) exhibited a high level of SNVs and insertions, most likely through transformation for abundant taxa in the Lake Urmia community. We suggest that the extreme conditions of Lake Urmia and specifically its high ionic concentrations could potentially increase the SNVs and insertions, which can consequently hamper the assembly and genome reconstruction from metagenomic reads of Lake Urmia.

show abstract

“…It is known that the Caspian Sea is a relict basin from the ancient oceans Tethys and Paratethys that existed in the Mesozoic and early Cenozoic eras. Thus, the Caspian Sea was part of the World Ocean and finally separated from it about 14-10 million years ago as part of the Sarmatian Sea [110]. Therefore, probably, the general profile of the Caspian Sea virome retained some features of and similarity to the viromes of the open seas.…”

Section: Discussionmentioning

confidence: 98%

Viromes of Coastal Waters of the North Caspian Sea: Initial Assessment of Diversity and Functional Potential

et al. 2023

View full text Add to dashboard Cite

In recent years, the study of marine viromes has become one of the most relevant areas of geoecology. Viruses are the most numerous, genetically diverse and pervasive biological entities on Earth, including in aquatic ecosystems. Information about viral diversity in aquatic ecosystems remains limited and requires more research. This work provides the first-ever look at the current DNA virome of the Northern Caspian Sea. A comparison with other freshwater and marine viromes revealed that the North Caspian Sea virome has the greatest similarity with those of the Baltic Sea and Lake Baikal. The study described in this article expands the knowledge about aquatic viromes and provides key data for a more comprehensive analysis of viruses circulating in the Caspian Sea, the largest inland body of water on Earth.

show abstract

Evolutionary mechanisms of the Paratethys Sea and its separation into the Black Sea and Caspian Sea

Cited by 21 publications

References 17 publications

Phylogeny, phylogeography and hybridization of Caucasian barbels of the genusBarbus(Actinopterygii, Cyprinidae)

Phylogeny, phylogeography and hybridization of Caucasian barbels of the genusBarbus(Actinopterygii, Cyprinidae)

Hypersaline Lake Urmia: a potential hotspot for microbial genomic variation

Viromes of Coastal Waters of the North Caspian Sea: Initial Assessment of Diversity and Functional Potential

Contact Info

Product

Resources

About