Genetic diversity of the earthworm Eisenia nordenskioldi (Lumbricidae, Annelida)

Shekhovtsov, Sergei V.; Берман, Д. И.; Голованова, Е. В.; Peltek, S. E.

doi:10.18699/vj17.24-o

Cited by 13 publications

(10 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These earthworms possess a different ploidy (2 n-8 n) and inhabit the same biotopes in different ecological niches (Vsevolodova-Perel & Leirikh 2014). At the same time, the pigmentation of the earthworms is not a species sign (Shekhovtsov et al 2017a).…”

Section: Resultsmentioning

confidence: 99%

EarthwormDrawida(Moniligastridae) Molecular phylogeny and diversity in Far East Russia and Northeast China

Zhang

Ganin

Atopkin

et al. 2020

The European Zoological Journal

View full text Add to dashboard Cite

In the Sikhote-Alin and Changbai Mountains of the Amur River region, earthworms of genus Drawida inhabit the northern boundary of their natural habitat. They are represented by the epigeic and anecic life-forms, three steady colour morphs and eight valid species, yet the genetic lineages of 11 have yet to be described. Based on mt-COI gene fragment sequence data, epigeic and anecic earthworms are shown to differ from one another at the interspecific level. Polymorphism and genetic intraspecific diversity are an obligatory sign for a species in the refuge even at the boundary of its distribution where this species occupies new ecological niches. The original habitats of the ancient Drawida black morph were within the Paleo-Amur River basin in the Late Neogene. Today, the meadow-swampy drawidas protrude far north along the Amur River floodplain up to the border of the last freezing in this region in comparison to the forest earthworms. However, at similar northern latitudes such as the Kuril Islands and the Sakhalin, Drawida are absent, because the soil on these islands during the last Ice Age was permafrost. The black epigeic drawidas only live in the floodplain meadows. The grey and brown morphs of the anecic species live in same forest biotopes, where they inhabit different soil horizons.

show abstract

Section: Resultsmentioning

confidence: 99%

EarthwormDrawida(Moniligastridae) Molecular phylogeny and diversity in Far East Russia and Northeast China

Zhang

Ganin

Atopkin

et al. 2020

The European Zoological Journal

View full text Add to dashboard Cite

show abstract

“…However, the picture is sometimes more complicated. Often, genetic lines that differ by 15% or more in mtDNA do not have noticeable differences with nuclear DNA [19]. It is also possible that differences in nuclear genes exist but there are isolated cases of crossing between lines [20][21][22].…”

Section: Resultsmentioning

confidence: 99%

Genetic features of the formed population of the genus Eisenia worms

2020

Biointerface Res Appl Chem

View full text Add to dashboard Cite

It is known that molecular genetic methods can provide researchers with new, more accurate means for differentiating species of earthworms and determining phylogenetic distances among them. Therefore, using neutral molecular markers, ISSR (Inter-Simple Sequence Repeat) examined the internal genetic polymorphism of genus Eisenia rainworms from the vermiculture array of the Biotechnology Department of the Ukrainian State Chemical Technology University, the parent forms of which were irradiated with an LGN-208B laser for different temporary exposures and cultivated on different organic substrates. Studies have shown that the line of animals has a fairly high level of heterogeneity despite the fact that it was bred from six individuals of the same array. The laser radiation action and the hard substrate during cultivation (bottom deposits) appeared as powerful factors of selective pressure.

show abstract

“…It was long known that E. nordenskioldi has extreme morphological, karyological, and ecological diversity (Malevich, 1956 ; Perel, 1979 ; Graphodatsky et al, 1982 ; Malinina and Perel, 1984 ; Viktorov, 1997 ; Shekhovtsov et al, 2017a ). There were several attempts to split E. nordenskioldi into smaller taxa.…”

Section: Discussionmentioning

confidence: 99%

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

et al. 2020

View full text Add to dashboard Cite

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.

show abstract

Genetic diversity of the earthworm Eisenia nordenskioldi (Lumbricidae, Annelida)

Cited by 13 publications

References 21 publications

EarthwormDrawida(Moniligastridae) Molecular phylogeny and diversity in Far East Russia and Northeast China

EarthwormDrawida(Moniligastridae) Molecular phylogeny and diversity in Far East Russia and Northeast China

Genetic features of the formed population of the genus Eisenia worms

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

Contact Info

Product

Resources

About