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12 results for “Relict Plant”
Linked collectors and determiners for: Rare, relict, range-limited, and problematic plant taxa in the Ukrainian Carpathians and adjacent territories from the LWS herbarium.
Natural history specimen data linked to collectors and determiners held within, "Rare, relict, range-limited, and problematic plant taxa in the Ukrainian Carpathians and adjacent territories from the LWS herbarium". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/79b5e00f-75b0-498b-a137-a0f0c622220c">https://bionomia.net/dataset/79b5e00f-75b0-498b-a137-a0f0c622220c</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/79b5e00f-75b0-498b-a137-a0f0c622220c">https://gbif.org/dataset/79b5e00f-75b0-498b-a137-a0f0c622220c</a>. Formatted as a Frictionless Data package.
Genetic diversity, genetic differentiation and demographic history of Cryptomeria (Cupressaceae), a Tertiary relict plant in East Asia based on RAD sequencing
<p>Genetic structure and distribution patterns of modern floras are strongly affected by climatic change and geographical isolation. In the present study, we applied restriction-site-associated DNA sequencing (RAD-seq) to analyze the genetic structure and to simulate the demographic history of two extant <em>Cryptomeria</em> species in Japan (<em>C. japonica</em>) and Southeastern China (<em>C</em>. <em>japonica</em> var. <em>sinensis</em>). Thirteen natural populations representing the entire species distributed in East Asia were collected from Japan and China. At the species level, the genetic diversity of <em>Cryptomeria</em> was moderate (<em>H<sub>o</sub></em> = 0.217, <em>H<sub>e</sub></em> = 0.203) with a significant genetic differentiation among populations (85.30%, P < 0.001), especially between Japan and China lineages (<em>F</em><sub>ST</sub> = 0.147). Except for the Lushan (LS) population in China, all populations were clustered into two lineages (Japanese and Chinese), which was consistent with their geographical distribution. Approximate Bayesian computations (ABC) model indicated that the current two geographical lineages diverged from a common ancestral lineage and that their divergence time was about 0.417 ~ 0.139 million years ago (Mya). Geographical isolation, climate change in the Quaternary, and human disturbance played important roles in genetic variation and distribution patterns of <em>Cryptomeria</em> in East Asia. Our results shed light on the speciation processes of <em>Cryptomeria</em> and provide a reference for the conservation of this species.</p>
Genetic diversity, genetic differentiation and demographic history of Cryptomeria (Cupressaceae), a Tertiary relict plant in East Asia based on RAD sequencing
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Data from: Phylogeography and niche modelling of the relict plant Amborella trichopoda (Amborellaceae) reveal multiple Pleistocene refugia in New Caledonia
Amborella trichopoda Baill. (Amborellaceae, Amborellales), the sole living member of the sister group to all other extant Angiosperms, is endemic to New Caledonia. We addressed the intraspecific phylogeography of Amborella by investigating whether its present population genetic structure could be related to its current and past habitats. We found moderate range-wide genetic diversity based on nuclear microsatellite data, and detected four well-differentiated, geographically distinct genetic groups using Bayesian clustering analyses. We modeled the ecological niche of Amborella based on current climatic and environmental conditions. The predictive ability of the model was very good throughout the Central East mainland zone, but Amborella was predicted in the northern part of the island where this plant has not been reported. Furthermore, no significant barrier was detected based on habitat suitability that could explain the genetic differentiation across the area. Conversely, we found that the main genetic clusters could be related to the distribution of suitable habitat at the last glacial maximum (LGM, ca. 21 000 years BP), when Amborella experienced a dramatic 96.5% reduction in suitable area. At least two lineages survived in distinct putative refugia located in the Massif des Lèvres and in the vicinity of Mount Aoupinié. Our findings finally confirmed the importance of LGM rainforest refugia in shaping the current intra- and inter-specific diversity in New Caledonian plants, and revealed the possibility of an as-yet unreported refugium. The combination of niche modelling and population genetics thereby offered novel insight into the biogeographic history of an emblematic taxon.
Data from: Phylogeography and niche modelling of the relict plant Amborella trichopoda (Amborellaceae) reveal multiple Pleistocene refugia in New Caledonia
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Figure 6 from: Huemer P, Schmid J (2021) Relict populations of Lyonetia ledi Wocke, 1859 (Lepidoptera, Lyonetiidae) from the Alps indicate postglacial host-plant shift to the famous Alpenrose (Rhododendron ferrugineum L.). Alpine Entomology 5: 101-106. https://doi.org/10.3897/alpento.5.76930
Figure 6 Final instar larva of Lyonetia ledi on Rhododendron ferrugineum (Switzerland, Graubünden, Ardez).
Figures 2- 3 from: Huemer P, Schmid J (2021) Relict populations of Lyonetia ledi Wocke, 1859 (Lepidoptera, Lyonetiidae) from the Alps indicate postglacial host-plant shift to the famous Alpenrose (Rhododendron ferrugineum L.). Alpine Entomology 5: 101-106. https://doi.org/10.3897/alpento.5.76930
Figures 2- 3 Lyonetia ledi adults resting on leaves of Rhododendron ferrugineum (Switzerland, Graubünden, Ardez).
Figure 1 from: Huemer P, Schmid J (2021) Relict populations of Lyonetia ledi Wocke, 1859 (Lepidoptera, Lyonetiidae) from the Alps indicate postglacial host-plant shift to the famous Alpenrose (Rhododendron ferrugineum L.). Alpine Entomology 5: 101-106. https://doi.org/10.3897/alpento.5.76930
Figure 1 COI Neighbor-Joining tree of species in the studied Lyonetia. Note: the scale bar only applies to internal branches between species. Width of triangles represent sample size, depth the genetic variation within the cluster.
Figures 4- 5 from: Huemer P, Schmid J (2021) Relict populations of Lyonetia ledi Wocke, 1859 (Lepidoptera, Lyonetiidae) from the Alps indicate postglacial host-plant shift to the famous Alpenrose (Rhododendron ferrugineum L.). Alpine Entomology 5: 101-106. https://doi.org/10.3897/alpento.5.76930
Figures 4- 5 Leaf-mines of Lyonetia ledi on Rhododendron ferrugineum (Switzerland, Graubünden, Ardez).
Figures 7- 8 from: Huemer P, Schmid J (2021) Relict populations of Lyonetia ledi Wocke, 1859 (Lepidoptera, Lyonetiidae) from the Alps indicate postglacial host-plant shift to the famous Alpenrose (Rhododendron ferrugineum L.). Alpine Entomology 5: 101-106. https://doi.org/10.3897/alpento.5.76930
Figures 7- 8 Characteristic cocoon with final instar larva and pupa of Lyonetia ledi on Rhododendron ferrugineum (Switzerland, Graubünden, Ardez).
Data from: Phylogeography of a Tertiary relict plant, Meconopsis cambrica (Papaveraceae), implies the existence of northern refugia for a temperate herb
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Figure 9 from: Huemer P, Schmid J (2021) Relict populations of Lyonetia ledi Wocke, 1859 (Lepidoptera, Lyonetiidae) from the Alps indicate postglacial host-plant shift to the famous Alpenrose (Rhododendron ferrugineum L.). Alpine Entomology 5: 101-106. https://doi.org/10.3897/alpento.5.76930
Figure 9 Habitat of Lyonetia ledi in Engadine/Switzerland with Rhododendron ferrugineum.
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