Current Phylogeographic Structure of <i>Anemone altaica</i> (Ranunculaceae) on the Khamar-Daban Ridge Reflects Quaternary Climate Change in Baikal Siberia
<i>Anemone altaica</i> Fisch. ex C. A. Mey., a component of the tertiary boreo-nemoral vegetation complex, exhibits a disjunct distribution from European Russia to Central China. The Khamar-Daban Ridge, extending along Lake Baikal’s southern coast, has served as a refugium preserving mes...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-04-01
|
| Series: | Quaternary |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2571-550X/8/2/20 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1839652864739246080 |
|---|---|
| author | Marina Protopopova Polina Nelyubina Vasiliy Pavlichenko |
| author_facet | Marina Protopopova Polina Nelyubina Vasiliy Pavlichenko |
| author_sort | Marina Protopopova |
| collection | DOAJ |
| description | <i>Anemone altaica</i> Fisch. ex C. A. Mey., a component of the tertiary boreo-nemoral vegetation complex, exhibits a disjunct distribution from European Russia to Central China. The Khamar-Daban Ridge, extending along Lake Baikal’s southern coast, has served as a refugium preserving mesophilic forest remnants in South Siberia since the Pleistocene. This study aimed to elucidate the phylogenetic relationships and historical biogeography of <i>A. altaica</i> within the Khamar-Daban refugium using plastid DNA markers (<i>trnL</i> + <i>trnL-trnF</i>). Phylogenetic and mismatch distribution analysis revealed polyphyly (more specifically diphyly) among <i>A. altaica</i> lineages, suggesting past hybridization events with related species followed by backcrossing. Estimation of isolation by distance effect, spatial autocorrelation analysis, PCoA, and AMOVA indicated a clear spatial genetic structure for <i>A. altaica</i> on the Khamar-Daban Ridge. The most reliable geographical model suggests that during periods of Pleistocene cooling, <i>A. altaica</i> persisted in at least six microrefugia within the ridge. Populations associated with these microrefugia formed western, central, and eastern genetic supergroups with limited gene flow among them. Gene flow likely occurred more easily during glaciations or early interglacials when the subalpine zone shifted closer to Lake Baikal due to the depression of the snow boundary, allowing adjacent populations to intermingle along the glacial edges and terminal moraines in mountain forest belt. |
| format | Article |
| id | doaj-art-f37bf80d9f8a4e20a47afab17f11913f |
| institution | Matheson Library |
| issn | 2571-550X |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Quaternary |
| spelling | doaj-art-f37bf80d9f8a4e20a47afab17f11913f2025-06-25T14:22:08ZengMDPI AGQuaternary2571-550X2025-04-01822010.3390/quat8020020Current Phylogeographic Structure of <i>Anemone altaica</i> (Ranunculaceae) on the Khamar-Daban Ridge Reflects Quaternary Climate Change in Baikal SiberiaMarina Protopopova0Polina Nelyubina1Vasiliy Pavlichenko2Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch of the Russian Academy of Sciences, Lermontov St., 132, 664033 Irkutsk, RussiaSiberian Institute of Plant Physiology and Biochemistry, Siberian Branch of the Russian Academy of Sciences, Lermontov St., 132, 664033 Irkutsk, RussiaSiberian Institute of Plant Physiology and Biochemistry, Siberian Branch of the Russian Academy of Sciences, Lermontov St., 132, 664033 Irkutsk, Russia<i>Anemone altaica</i> Fisch. ex C. A. Mey., a component of the tertiary boreo-nemoral vegetation complex, exhibits a disjunct distribution from European Russia to Central China. The Khamar-Daban Ridge, extending along Lake Baikal’s southern coast, has served as a refugium preserving mesophilic forest remnants in South Siberia since the Pleistocene. This study aimed to elucidate the phylogenetic relationships and historical biogeography of <i>A. altaica</i> within the Khamar-Daban refugium using plastid DNA markers (<i>trnL</i> + <i>trnL-trnF</i>). Phylogenetic and mismatch distribution analysis revealed polyphyly (more specifically diphyly) among <i>A. altaica</i> lineages, suggesting past hybridization events with related species followed by backcrossing. Estimation of isolation by distance effect, spatial autocorrelation analysis, PCoA, and AMOVA indicated a clear spatial genetic structure for <i>A. altaica</i> on the Khamar-Daban Ridge. The most reliable geographical model suggests that during periods of Pleistocene cooling, <i>A. altaica</i> persisted in at least six microrefugia within the ridge. Populations associated with these microrefugia formed western, central, and eastern genetic supergroups with limited gene flow among them. Gene flow likely occurred more easily during glaciations or early interglacials when the subalpine zone shifted closer to Lake Baikal due to the depression of the snow boundary, allowing adjacent populations to intermingle along the glacial edges and terminal moraines in mountain forest belt.https://www.mdpi.com/2571-550X/8/2/20climate changeglaciationCis-Baikaldisjunct distributionhybridsnemoral refugia |
| spellingShingle | Marina Protopopova Polina Nelyubina Vasiliy Pavlichenko Current Phylogeographic Structure of <i>Anemone altaica</i> (Ranunculaceae) on the Khamar-Daban Ridge Reflects Quaternary Climate Change in Baikal Siberia Quaternary climate change glaciation Cis-Baikal disjunct distribution hybrids nemoral refugia |
| title | Current Phylogeographic Structure of <i>Anemone altaica</i> (Ranunculaceae) on the Khamar-Daban Ridge Reflects Quaternary Climate Change in Baikal Siberia |
| title_full | Current Phylogeographic Structure of <i>Anemone altaica</i> (Ranunculaceae) on the Khamar-Daban Ridge Reflects Quaternary Climate Change in Baikal Siberia |
| title_fullStr | Current Phylogeographic Structure of <i>Anemone altaica</i> (Ranunculaceae) on the Khamar-Daban Ridge Reflects Quaternary Climate Change in Baikal Siberia |
| title_full_unstemmed | Current Phylogeographic Structure of <i>Anemone altaica</i> (Ranunculaceae) on the Khamar-Daban Ridge Reflects Quaternary Climate Change in Baikal Siberia |
| title_short | Current Phylogeographic Structure of <i>Anemone altaica</i> (Ranunculaceae) on the Khamar-Daban Ridge Reflects Quaternary Climate Change in Baikal Siberia |
| title_sort | current phylogeographic structure of i anemone altaica i ranunculaceae on the khamar daban ridge reflects quaternary climate change in baikal siberia |
| topic | climate change glaciation Cis-Baikal disjunct distribution hybrids nemoral refugia |
| url | https://www.mdpi.com/2571-550X/8/2/20 |
| work_keys_str_mv | AT marinaprotopopova currentphylogeographicstructureofianemonealtaicairanunculaceaeonthekhamardabanridgereflectsquaternaryclimatechangeinbaikalsiberia AT polinanelyubina currentphylogeographicstructureofianemonealtaicairanunculaceaeonthekhamardabanridgereflectsquaternaryclimatechangeinbaikalsiberia AT vasiliypavlichenko currentphylogeographicstructureofianemonealtaicairanunculaceaeonthekhamardabanridgereflectsquaternaryclimatechangeinbaikalsiberia |