<i>Waldsteinia</i> within <i>Geum</i> s.l. (Rosaceae): Main Aspects of Phylogeny and Speciation History
<i>Waldsteinia</i> is a small plant genus inhabiting the temperate regions of the Northern Hemisphere. According to the latest revisions, <i>Waldsteinia</i> is included in <i>Geum</i>. We have obtained a phylogenetic reconstruction based on the nuclear (ITS) and p...
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MDPI AG
2023-03-01
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| Online Access: | https://www.mdpi.com/1424-2818/15/4/479 |
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| author | Marina Protopopova Vasiliy Pavlichenko Victor Chepinoga Alexander Gnutikov Renat Adelshin |
| author_facet | Marina Protopopova Vasiliy Pavlichenko Victor Chepinoga Alexander Gnutikov Renat Adelshin |
| author_sort | Marina Protopopova |
| collection | DOAJ |
| description | <i>Waldsteinia</i> is a small plant genus inhabiting the temperate regions of the Northern Hemisphere. According to the latest revisions, <i>Waldsteinia</i> is included in <i>Geum</i>. We have obtained a phylogenetic reconstruction based on the nuclear (ITS) and plastid (<i>trnL-trnF</i>) DNA to understand the phylogenetic structure of <i>Waldsteinia</i> and its relationships with other taxa of <i>Geum</i> s.l. Phylogenetic analysis based on the joint ITS + <i>trnL-trnF</i> dataset demonstrated <i>Waldsteinia</i> monophyly. The phylogenetic relationships of <i>Waldsteinia</i> species were better explained by their geographical distribution than their morphology. Hence, Euro-Siberian, Northeast Asian, and North American phylogeographic groups were distinguished, with East Asia having been suggested as the place of <i>Waldsteinia</i> origin. Considering the incongruence in <i>W. geoides</i> (a type species) position on the plastid and nuclear DNA trees, together with the discrepancy between the species morphology and its location on the plastid DNA tree, a hybrid origin was suggested for this species. Despite the fact that the position of <i>W. maximowicziana</i> is still not fully resolved, we support the point of view that claims it should be separated from the <i>W. ternata</i> aggregate (traditionally including <i>W. trifolia</i>, <i>W. ternata</i> s.str., and <i>W. maximowicziana</i>) and considered a separate species. The American <i>W. doniana</i>, <i>W. fragarioides</i>, and <i>W. lobata</i> belong to a single maternal lineage, but the observed genetic differences are too small to serve as a convincing argument for species segregation, so their relationships still remain unresolved. |
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| issn | 1424-2818 |
| language | English |
| last_indexed | 2024-03-11T05:06:36Z |
| publishDate | 2023-03-01 |
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| spelling | doaj.art-f17d8a55283d438398de975bd4723f262023-11-17T18:56:13ZengMDPI AGDiversity1424-28182023-03-0115447910.3390/d15040479<i>Waldsteinia</i> within <i>Geum</i> s.l. (Rosaceae): Main Aspects of Phylogeny and Speciation HistoryMarina Protopopova0Vasiliy Pavlichenko1Victor Chepinoga2Alexander Gnutikov3Renat Adelshin4Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch of the Russian Academy of Sciences, Lermontov St., 132, Irkutsk 664033, RussiaSiberian Institute of Plant Physiology and Biochemistry, Siberian Branch of the Russian Academy of Sciences, Lermontov St., 132, Irkutsk 664033, RussiaFaculty of Biology and Soil Sciences, Irkutsk State University, Karl Marx St., 1, Irkutsk 664003, RussiaFederal Research Center N. I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR), B. Morskaya St., 42–44, Saint Petersburg 190000, RussiaFaculty of Biology and Soil Sciences, Irkutsk State University, Karl Marx St., 1, Irkutsk 664003, Russia<i>Waldsteinia</i> is a small plant genus inhabiting the temperate regions of the Northern Hemisphere. According to the latest revisions, <i>Waldsteinia</i> is included in <i>Geum</i>. We have obtained a phylogenetic reconstruction based on the nuclear (ITS) and plastid (<i>trnL-trnF</i>) DNA to understand the phylogenetic structure of <i>Waldsteinia</i> and its relationships with other taxa of <i>Geum</i> s.l. Phylogenetic analysis based on the joint ITS + <i>trnL-trnF</i> dataset demonstrated <i>Waldsteinia</i> monophyly. The phylogenetic relationships of <i>Waldsteinia</i> species were better explained by their geographical distribution than their morphology. Hence, Euro-Siberian, Northeast Asian, and North American phylogeographic groups were distinguished, with East Asia having been suggested as the place of <i>Waldsteinia</i> origin. Considering the incongruence in <i>W. geoides</i> (a type species) position on the plastid and nuclear DNA trees, together with the discrepancy between the species morphology and its location on the plastid DNA tree, a hybrid origin was suggested for this species. Despite the fact that the position of <i>W. maximowicziana</i> is still not fully resolved, we support the point of view that claims it should be separated from the <i>W. ternata</i> aggregate (traditionally including <i>W. trifolia</i>, <i>W. ternata</i> s.str., and <i>W. maximowicziana</i>) and considered a separate species. The American <i>W. doniana</i>, <i>W. fragarioides</i>, and <i>W. lobata</i> belong to a single maternal lineage, but the observed genetic differences are too small to serve as a convincing argument for species segregation, so their relationships still remain unresolved.https://www.mdpi.com/1424-2818/15/4/479climate changeITS concerted evolutiondisjunct distributionhybridsthe Holarcticrefugium |
| spellingShingle | Marina Protopopova Vasiliy Pavlichenko Victor Chepinoga Alexander Gnutikov Renat Adelshin <i>Waldsteinia</i> within <i>Geum</i> s.l. (Rosaceae): Main Aspects of Phylogeny and Speciation History Diversity climate change ITS concerted evolution disjunct distribution hybrids the Holarctic refugium |
| title | <i>Waldsteinia</i> within <i>Geum</i> s.l. (Rosaceae): Main Aspects of Phylogeny and Speciation History |
| title_full | <i>Waldsteinia</i> within <i>Geum</i> s.l. (Rosaceae): Main Aspects of Phylogeny and Speciation History |
| title_fullStr | <i>Waldsteinia</i> within <i>Geum</i> s.l. (Rosaceae): Main Aspects of Phylogeny and Speciation History |
| title_full_unstemmed | <i>Waldsteinia</i> within <i>Geum</i> s.l. (Rosaceae): Main Aspects of Phylogeny and Speciation History |
| title_short | <i>Waldsteinia</i> within <i>Geum</i> s.l. (Rosaceae): Main Aspects of Phylogeny and Speciation History |
| title_sort | i waldsteinia i within i geum i s l rosaceae main aspects of phylogeny and speciation history |
| topic | climate change ITS concerted evolution disjunct distribution hybrids the Holarctic refugium |
| url | https://www.mdpi.com/1424-2818/15/4/479 |
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