Does the seed fall far from the tree? Weak fine-scale genetic structure in a continuous Scots pine population
Knowledge of fine-scale spatial genetic structure, i.e., the distribution of genetic diversity at short distances, is important in evolutionary research and in practical applications such as conservation and breeding programs. In trees, related individuals often grow close to each other due to limit...
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Peer Community In
2024-04-01
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| Series: | Peer Community Journal |
| Online Access: | https://peercommunityjournal.org/articles/10.24072/pcjournal.413/ |
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| author | Niskanen, Alina K. Kujala, Sonja T. Kärkkäinen, Katri Savolainen, Outi Pyhäjärvi, Tanja |
| author_facet | Niskanen, Alina K. Kujala, Sonja T. Kärkkäinen, Katri Savolainen, Outi Pyhäjärvi, Tanja |
| author_sort | Niskanen, Alina K. |
| collection | DOAJ |
| description | Knowledge of fine-scale spatial genetic structure, i.e., the distribution of genetic diversity at short distances, is important in evolutionary research and in practical applications such as conservation and breeding programs. In trees, related individuals often grow close to each other due to limited seed and/or pollen dispersal. The extent of seed dispersal also limits the speed at which a tree species can spread to new areas. We studied the fine-scale spatial genetic structure of Scots pine (Pinus sylvestris) in two naturally regenerated sites located 20 km from each other in continuous south-eastern Finnish forest. We genotyped almost 500 adult trees for 150k SNPs using a custom made Affymetrix array. We detected some pairwise relatedness at short distances, but the average relatedness was low and decreased with increasing distance, as expected. Despite the clustering of related individuals, the sampling sites were not differentiated (FST = 0.0005). According to our results, Scots pine has a large neighborhood size (Nb = 1680–3210), but a relatively short gene dispersal distance (σg = 36.5–71.3 m). Knowledge of Scots pine fine-scale spatial genetic structure can be used to define suitable sampling distances for evolutionary studies and practical applications. Detailed empirical estimates of dispersal are necessary both in studying post-glacial recolonization and predicting the response of forest trees to climate change. |
| format | Article |
| id | doaj-art-c80fa07cd618406cbb469545e8323007 |
| institution | Kabale University |
| issn | 2804-3871 |
| language | English |
| publishDate | 2024-04-01 |
| publisher | Peer Community In |
| record_format | Article |
| series | Peer Community Journal |
| spelling | doaj-art-c80fa07cd618406cbb469545e83230072025-02-07T10:17:18ZengPeer Community InPeer Community Journal2804-38712024-04-01410.24072/pcjournal.41310.24072/pcjournal.413Does the seed fall far from the tree? Weak fine-scale genetic structure in a continuous Scots pine population Niskanen, Alina K.0https://orcid.org/0000-0003-2017-2718Kujala, Sonja T.1https://orcid.org/0000-0003-0949-6156Kärkkäinen, Katri2Savolainen, Outi3Pyhäjärvi, Tanja4https://orcid.org/0000-0001-6958-5172Ecology and Genetics Research Unit, University of Oulu, 90014 University of Oulu, Finland; Department of Forest Sciences, University of Helsinki, 00014 University of Helsinki, FinlandNatural Resources Institute Finland (Luke), Paavo Havaksen tie 3, 90570 Oulu, FinlandNatural Resources Institute Finland (Luke), Paavo Havaksen tie 3, 90570 Oulu, FinlandEcology and Genetics Research Unit, University of Oulu, 90014 University of Oulu, FinlandDepartment of Forest Sciences, University of Helsinki, 00014 University of Helsinki, FinlandKnowledge of fine-scale spatial genetic structure, i.e., the distribution of genetic diversity at short distances, is important in evolutionary research and in practical applications such as conservation and breeding programs. In trees, related individuals often grow close to each other due to limited seed and/or pollen dispersal. The extent of seed dispersal also limits the speed at which a tree species can spread to new areas. We studied the fine-scale spatial genetic structure of Scots pine (Pinus sylvestris) in two naturally regenerated sites located 20 km from each other in continuous south-eastern Finnish forest. We genotyped almost 500 adult trees for 150k SNPs using a custom made Affymetrix array. We detected some pairwise relatedness at short distances, but the average relatedness was low and decreased with increasing distance, as expected. Despite the clustering of related individuals, the sampling sites were not differentiated (FST = 0.0005). According to our results, Scots pine has a large neighborhood size (Nb = 1680–3210), but a relatively short gene dispersal distance (σg = 36.5–71.3 m). Knowledge of Scots pine fine-scale spatial genetic structure can be used to define suitable sampling distances for evolutionary studies and practical applications. Detailed empirical estimates of dispersal are necessary both in studying post-glacial recolonization and predicting the response of forest trees to climate change.https://peercommunityjournal.org/articles/10.24072/pcjournal.413/ |
| spellingShingle | Niskanen, Alina K. Kujala, Sonja T. Kärkkäinen, Katri Savolainen, Outi Pyhäjärvi, Tanja Does the seed fall far from the tree? Weak fine-scale genetic structure in a continuous Scots pine population Peer Community Journal |
| title | Does the seed fall far from the tree? Weak fine-scale genetic structure in a continuous Scots pine population
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| title_full | Does the seed fall far from the tree? Weak fine-scale genetic structure in a continuous Scots pine population
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| title_fullStr | Does the seed fall far from the tree? Weak fine-scale genetic structure in a continuous Scots pine population
|
| title_full_unstemmed | Does the seed fall far from the tree? Weak fine-scale genetic structure in a continuous Scots pine population
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| title_short | Does the seed fall far from the tree? Weak fine-scale genetic structure in a continuous Scots pine population
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| title_sort | does the seed fall far from the tree weak fine scale genetic structure in a continuous scots pine population |
| url | https://peercommunityjournal.org/articles/10.24072/pcjournal.413/ |
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