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Molecular systematics of the Sicista tianschanica species complex: a contribution from historical DNA analysis

The Tianshan birch mouse Sicista tianschanica is an endemic of the Central Asian mountains and has previously been shown to include several karyomorphs (“Terskey”, “Talgar”, “Dzungar”); however, the taxonomic status of these forms has remained uncertain. We examined the genetic variation in S. tians...

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Autores principales: Lebedev, Vladimir S., Kovalskaya, Yulia, Solovyeva, Evgeniya N., Zemlemerova, Elena D., Bannikova, Anna A., Rusin, Mikhail Yu, Matrosova, Vera A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7810041/
https://www.ncbi.nlm.nih.gov/pubmed/33520475
http://dx.doi.org/10.7717/peerj.10759
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author Lebedev, Vladimir S.
Kovalskaya, Yulia
Solovyeva, Evgeniya N.
Zemlemerova, Elena D.
Bannikova, Anna A.
Rusin, Mikhail Yu
Matrosova, Vera A.
author_facet Lebedev, Vladimir S.
Kovalskaya, Yulia
Solovyeva, Evgeniya N.
Zemlemerova, Elena D.
Bannikova, Anna A.
Rusin, Mikhail Yu
Matrosova, Vera A.
author_sort Lebedev, Vladimir S.
collection PubMed
description The Tianshan birch mouse Sicista tianschanica is an endemic of the Central Asian mountains and has previously been shown to include several karyomorphs (“Terskey”, “Talgar”, “Dzungar”); however, the taxonomic status of these forms has remained uncertain. We examined the genetic variation in S. tianschanica based on historical DNA samples from museum collections, including the type series. Mitochondrial and nuclear data indicated that the species complex includes two major clades: Northern (N) and Southern (S) (cytb distance 13%). The N clade corresponds to the “Dzungar” karyomorph (Dzungar Alatau, Tarbagatay). The S clade is comprised of four lineages (S1–S4) divergent at 6–8%; the relationships among which are resolved incompletely. The S1 lineage is found in eastern Tianshan and corresponds to the nominal taxon. The S2 is distributed in central and northern Tianshan and corresponds to the “Terskey” karyomorph. The S3 is restricted to Trans-Ili Alatau and belongs to the “Talgar” karyomorph. The S4 is represented by a single specimen from southeastern Dzungar Alatau with "Talgar" karyotype. No interlineage gene flow was revealed. The validity of S. zhetysuica (equivalent to the N clade) is supported. Based on genetic and karyotypic evidence, lineages S2 and S3 are described as distinct species. The status of the S4 requires further investigation.
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spelling pubmed-78100412021-01-28 Molecular systematics of the Sicista tianschanica species complex: a contribution from historical DNA analysis Lebedev, Vladimir S. Kovalskaya, Yulia Solovyeva, Evgeniya N. Zemlemerova, Elena D. Bannikova, Anna A. Rusin, Mikhail Yu Matrosova, Vera A. PeerJ Biodiversity The Tianshan birch mouse Sicista tianschanica is an endemic of the Central Asian mountains and has previously been shown to include several karyomorphs (“Terskey”, “Talgar”, “Dzungar”); however, the taxonomic status of these forms has remained uncertain. We examined the genetic variation in S. tianschanica based on historical DNA samples from museum collections, including the type series. Mitochondrial and nuclear data indicated that the species complex includes two major clades: Northern (N) and Southern (S) (cytb distance 13%). The N clade corresponds to the “Dzungar” karyomorph (Dzungar Alatau, Tarbagatay). The S clade is comprised of four lineages (S1–S4) divergent at 6–8%; the relationships among which are resolved incompletely. The S1 lineage is found in eastern Tianshan and corresponds to the nominal taxon. The S2 is distributed in central and northern Tianshan and corresponds to the “Terskey” karyomorph. The S3 is restricted to Trans-Ili Alatau and belongs to the “Talgar” karyomorph. The S4 is represented by a single specimen from southeastern Dzungar Alatau with "Talgar" karyotype. No interlineage gene flow was revealed. The validity of S. zhetysuica (equivalent to the N clade) is supported. Based on genetic and karyotypic evidence, lineages S2 and S3 are described as distinct species. The status of the S4 requires further investigation. PeerJ Inc. 2021-01-12 /pmc/articles/PMC7810041/ /pubmed/33520475 http://dx.doi.org/10.7717/peerj.10759 Text en © 2021 Lebedev et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.
spellingShingle Biodiversity
Lebedev, Vladimir S.
Kovalskaya, Yulia
Solovyeva, Evgeniya N.
Zemlemerova, Elena D.
Bannikova, Anna A.
Rusin, Mikhail Yu
Matrosova, Vera A.
Molecular systematics of the Sicista tianschanica species complex: a contribution from historical DNA analysis
title Molecular systematics of the Sicista tianschanica species complex: a contribution from historical DNA analysis
title_full Molecular systematics of the Sicista tianschanica species complex: a contribution from historical DNA analysis
title_fullStr Molecular systematics of the Sicista tianschanica species complex: a contribution from historical DNA analysis
title_full_unstemmed Molecular systematics of the Sicista tianschanica species complex: a contribution from historical DNA analysis
title_short Molecular systematics of the Sicista tianschanica species complex: a contribution from historical DNA analysis
title_sort molecular systematics of the sicista tianschanica species complex: a contribution from historical dna analysis
topic Biodiversity
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7810041/
https://www.ncbi.nlm.nih.gov/pubmed/33520475
http://dx.doi.org/10.7717/peerj.10759
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