scholarly journals Multigene phylogenies for the earthworm Eisenia nordenskioldi (Lumbricidae, Annelida)

2020 ◽  
Keyword(s):  
Eisenia Nordenskioldi

scholarly journals Characterization of Five New Earthworm Mitogenomes (Oligochaeta: Lumbricidae): Mitochondrial Phylogeny of Lumbricidae

Diversity ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 580
Author(s):  
Hongyi Liu ◽  
Yufeng Zhang ◽  
Wei Xu ◽  
Yu Fang ◽  
Honghua Ruan
Keyword(s):  
Phylogenetic Trees ◽  
Mitochondrial Gene ◽  
Morphological Characteristics ◽  
Molecular Techniques ◽  
Phylogenetic Studies ◽  
Octolasion Tyrtaeum ◽  
Eisenia Nordenskioldi ◽  
Novel Strategy

Identification based on conventional morphological characteristics is typically difficult and time-consuming. The development of molecular techniques provides a novel strategy that relies on specific mitochondrial gene fragments to conduct authentication. For this study, five newly sequenced partial mitogenomes of earthworms (Bimastos parvus, Dendrobaena octaedra, Eisenia andrei, Eisenia nordenskioldi, and Octolasion tyrtaeum) with lengths ranging from 14,977 to 15,715 were presented. Each mitogenome possessed a putative control region that resided between tRNA-Arg and tRNA-His. All of the PCGs were under negative selection according to the value of Ka/Ks. The phylogenetic trees supported the classification of Eisenia and Lumbricus; however, the trees based on cox1 did not. Through various comparisons, it was determined that cox1 fragments might be more suitable for molecular identification. These results lay the foundation for further phylogenetic studies on Lumbricidae.

Phylogeny of the Eisenia nordenskioldi complex based on mitochondrial genomes

2020 ◽  
Vol 96 ◽  
pp. 103137 ◽  
Author(s):  
S.V. Shekhovtsov ◽  
E.V. Golovanova ◽  
N.I. Ershov ◽  
T.V. Poluboyarova ◽  
D.I. Berman ◽  
...  
Keyword(s):  
Mitochondrial Genomes ◽  
Eisenia Nordenskioldi

scholarly journals Patterns of Genetic Variation in the Eisenia nordenskioldi Complex (Oligochaeta: Lumbricidae) along an Elevation Gradient in Northern China

Diversity ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 35
Author(s):  
Yufeng Zhang ◽  
Yiming Zhang ◽  
Hui Wu ◽  
Congsheng Li ◽  
Nonillon M. Aspe ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Elevation Gradient ◽  
Northern China ◽  
External Morphology ◽  
Distribution Analysis ◽  
Limited Sample ◽  
Southern Limit ◽  
Earthworm Species ◽  
Mismatch Distribution Analysis ◽  
Eisenia Nordenskioldi

Eisenia nordenskioldi is the dominant earthworm species in many tundra and boreal habitats. Nothing is known about the genetic diversity of this species along the elevation gradient in China. This study sampled 28 individuals in the E. nordenskioldi complex from Wuling Mountain, northern China, to examine their external morphology and genetic diversity. Mt. Wuling is the southern limit of the distribution of the E. nordenskioldi complex. The specimens from Mt. Wuling were classified into three groups along an elevation gradient. Mismatch distribution analysis suggested that the Pleistocene glaciations possibly did not significantly affect the distribution of earthworm species in this region. We also found that elevation affected the genetic diversity, but not the external morphology of E. nordenskioldi. Given the altitudinal genetic diversity within the E. nordenskioldi complex, the phylogeography of this species provides important information for the zoogeographic reconstruction of the mountains in northern China. With the relatively limited sample size, the result is not conclusive, and further studies need to be conducted in the future to verify the results.

scholarly journals Species Delimitation of the Eisenia nordenskioldi Complex (Oligochaeta, Lumbricidae) Using Transcriptomic Data

2020 ◽  
Vol 11 ◽  
Author(s):  
Sergei V. Shekhovtsov ◽  
Aleksandra A. Shipova ◽  
Tatiana V. Poluboyarova ◽  
Gennady V. Vasiliev ◽  
Elena V. Golovanova ◽  
...  
Keyword(s):  
Species Delimitation ◽  
Coi Gene ◽  
Southeastern Part ◽  
Genetic Lineages ◽  
Transcriptomic Data ◽  
Its Phylogeny ◽  
Eisenia Nordenskioldi ◽  
Very High ◽  
Large Distribution ◽  
High Diversity

Eisenia nordenskioldi (Eisen, 1879) is the only autochthonous Siberian earthworm with a large distribution that ranges from tundra to steppe and broadleaved forests. This species has a very high morphological, ecological, karyological, and genetic diversity, so it was proposed that E. nordenskioldi should be split into several species. However, the phylogeny of the complex was unclear due to the low resolution of the methods used and the high diversity that should have been taken into account. We investigated this question by (1) studying the diversity of the COI gene of E. nordenskioldi throughout its range and (2) sequencing transcriptomes of different genetic lineages to infer its phylogeny. We found that E. nordenskioldi is monophyletic and is split into two clades. The first one includes the pigmented genetic lineages widespread in the northern and western parts of the distribution, and the second one originating from the southern and southeastern part of the species' range and representing both pigmented and non-pigmented forms. We propose to split the E. nordenskioldi complex into two species, E. nordenskioldi and Eisenia sp. 1 (aff. E. nordenskioldi), corresponding to these two clades. The currently recognized non-pigmented subspecies E. n. pallida will be abolished as a polyphyletic and thus a non-natural taxon, while Eisenia sp. 1 will be expanded to include several lineages earlier recognized as E. n. nordenskioldi and E. n. pallida.

Phylogeography of Eisenia nordenskioldi nordenskioldi (Lumbricidae, Oligochaeta) from the north of Asia

Polar Biology ◽  
2017 ◽  
Vol 41 (2) ◽  
pp. 237-247 ◽  
Author(s):  
S. V. Shekhovtsov ◽  
D. I. Berman ◽  
N. A. Bulakhova ◽  
N. N. Vinokurov ◽  
S. E. Peltek
Keyword(s):  
The North ◽  
Eisenia Nordenskioldi

Cold Resistance and the Distribution of Genetic Lineages of the Earthworm Eisenia nordenskioldi (Oligochaeta, Lumbricidae)

2019 ◽  
Vol 46 (5) ◽  
pp. 430-437
Author(s):  
D. I. Berman ◽  
N. A. Bulakhova ◽  
E. N. Meshcheryakova ◽  
S. V. Shekhovtsov
Keyword(s):  
Cold Resistance ◽  
Genetic Lineages ◽  
Eisenia Nordenskioldi

Cryptic genetic lineages in Eisenia nordenskioldi pallida (Oligochaeta, Lumbricidae)

2016 ◽  
Vol 75 ◽  
pp. 151-156 ◽  
Author(s):  
S.V. Shekhovtsov ◽  
D.I. Berman ◽  
N.E. Bazarova ◽  
N.A. Bulakhova ◽  
D. Porco ◽  
...  
Keyword(s):  
Genetic Lineages ◽  
Eisenia Nordenskioldi

scholarly journals LUMBRICIDAE SPECIES COMPOSITION IN THE SOILS OF THE FOOTHILL BEYOND ILE ALATAU REGION

REPORTS ◽  
2021 ◽  
pp. 53-56
Author(s):  
Gulzinat Seribekkyzy ◽  
Bolat Esimov
Keyword(s):  
Species Composition ◽  
Charles Darwin ◽  
Lumbricus Terrestris ◽  
Common Species ◽  
Lumbricus Rubellus ◽  
Dendrobaena Octaedra ◽  
Eisenia Nordenskioldi ◽  
Two Peaks ◽  
Active Substances

This article discusses the species composition of earthworms in the soils of the beyond Ile Alatau region. The role of earthworms in the soil is quite large. First of all, it is worth noting their loosening and structuring activities. During the movement process, these soil invertebrates mix a huge number of small fractions of soil. The loosening activity promotes moisture and sufficient oxygen. The most important is the destructive activity and enrichment of soils with active substances, as enzymes. The study of lumbricides began from the time of Charles Darwin, and is still of great importance the essence of such invertebrates in zoology. Scientific researchers had been carried out over two years (2018-2020) during the active vegetation of plants on the soils of the highest point of the beyond Ile Alatau region - in the peak of Talgar. As a result of the conducted research, the following earthworm species from the Lumbricidae family were found: Octolasium lacteum, Eisenia foetida, Eisenia nordenskioldi, Nicodrilus caliginosus, Nicodrilus longus, Lumbricus rubellus, Lumbricus terrestris, Dendrobaena octaedra. The most common species are Lumbricus rubellus and Nicodrilus caliginosus, and the rest are less common. In the seasonal dynamics of earthworm numbers, two peaks of activity were observed - in early June and at the end of August.

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