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Genetic Differentiation and Clonality in a Local Population of the Caucasian Endemic Trifolium polyphyllum C.A. Mey. (Fabaceae)
- Authors: Zelenova O.B.1, Galkina M.A.2, Onipchenko V.G.1, Schanzer I.A.2
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Affiliations:
- Lomonosov Moscow State University
- Tsitsin Main Botanical Garden of Russian Academy of Sciences
- Issue: Vol 60, No 1 (2024)
- Pages: 69-79
- Section: ГЕНЕТИКА РАСТЕНИЙ
- URL: https://rjsvd.com/0016-6758/article/view/667012
- DOI: https://doi.org/10.31857/S0016675824010051
- ID: 667012
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Fig. 1. a – Position of the studied population in the Caucasus (red triangle), b – “cushion” of T. polyphyllum (photo by V. Onipchenko); c – location of sampling sites on Mount Malaya Khatipara: 1 – first transect, 2 – second transect, 3 – first “pillow”, 4 – second “pillow”. Transects were divided into rectangular areas of 1 × 0.5 m, from which samples were taken. The image of the mountain was obtained using the Google Earth service (https://earth.google.com/web/). Scale bar 60 m.
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Fig. 2. Results of the study of the first sample. a – Ordination using the NMDS method: 1 – first transect, 2 – second transect, 3 – first “pillow”, 4 – second “pillow”; b – clustering of samples of the first and second transects using the UPGMA method, Jaccard distance; c – clustering of samples of the first and second “pillows” using the UPGMA method, Jaccard distance. Bootstrap support values above 60% are shown near the corresponding nodes. Samples from the first transect are indicated in red, from the second – in green; from the first “pillow” - blue, from the second “pillow” - crimson.
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Fig. 3. Results of the study of the first sample in the STRUCTURE program. a – Graph of ΔK; b – bar graph of posterior probabilities of assigning samples to genetic clusters for K = 4 and the location of samples on transects, circles indicate samples with a probability of assignment to the corresponding cluster >95%, triangles indicate genetically mixed samples, color corresponds to the cluster to which the sample belongs most probability, transects and the location of samples on them are depicted schematically; c – ordination using the NMDS method, sample designations are the same, numbers indicate cluster numbers, fractions indicate cluster numbers to which the sample belongs with the highest/lowest probability. Transects and the location of samples on them are shown schematically above the bar graph and are designated 1 and 2, respectively.
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Fig. 4. Results of analysis of samples of the second sample. a – Ordination by NMDS method, 1 – first transect, 2 – second transect; b – clustering of samples from the first and second transects using the UPGMA method, Jaccard distance; samples from the first transect are indicated in red, from the second – in green.
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