Transmission of Genetic Variation from the Adult Generation to Naturally Established Seedlings of Fagus orientalis in the Hyrcanian Forest
Oriental beech (Fagus orientalis) is distributed from Turkey to northern Iran. It is one of the most economically important tree species in this natural distribution range and has been exploited for a long time in the Hyrcanian forest. This study compared genetic variation between adult individuals...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Mazandaran
2024-09-01
|
| Series: | Journal of Genetic Resources |
| Subjects: | |
| Online Access: | https://sc.journals.umz.ac.ir/article_5160_1f06b28dcf362f086bc4616a41e8746a.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832585084850405376 |
|---|---|
| author | Hamed Yousefzadeh Malek Nasiri Narjes Amirchakhmaghi Seyedeh Alemeh Sabbagh Łukasz Walas Gregor Kozlowski |
| author_facet | Hamed Yousefzadeh Malek Nasiri Narjes Amirchakhmaghi Seyedeh Alemeh Sabbagh Łukasz Walas Gregor Kozlowski |
| author_sort | Hamed Yousefzadeh |
| collection | DOAJ |
| description | Oriental beech (Fagus orientalis) is distributed from Turkey to northern Iran. It is one of the most economically important tree species in this natural distribution range and has been exploited for a long time in the Hyrcanian forest. This study compared genetic variation between adult individuals and recent cohorts of 1–3-year-old seedlings using 14 SSR primers in four pure stands of F. orientalis with over 90% canopy cover. The results showed that the expected heterozygosity (He) varied from 0.83 to 0.92 (mean value 0.88), and a significant difference was detected between the expected and observed heterozygosity. In total, 75 private alleles were detected; of these, 56 were rare and had a frequency below 0.05. Pairwise Fst values indicated that seedlings were more similar to each other than to mature trees in the same population. It was found that the populations in each pair (mature trees-seedlings) differed (global average D = 0.35). The average percentage of migrants in the population was 8.83% and varied from 6.64% to 13.41%. The genetic differentiation within the same stands, the genetic differences between adults and seedlings were also significant in some populations, and contemporary gene flow drastically decreased in the next generation. Therefore, the transfer of genetic variation between tree generations is currently strongly affected by anthropogenic influence, at least in the studied beech populations, leading to the high vulnerability of Oriental beech populations to future climate changes. |
| format | Article |
| id | doaj-art-9eda645e04c445999a92a7e781573b86 |
| institution | Kabale University |
| issn | 2423-4257 2588-2589 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | University of Mazandaran |
| record_format | Article |
| series | Journal of Genetic Resources |
| spelling | doaj-art-9eda645e04c445999a92a7e781573b862025-01-27T06:11:46ZengUniversity of MazandaranJournal of Genetic Resources2423-42572588-25892024-09-0110215216310.22080/jgr.2024.26853.13875160Transmission of Genetic Variation from the Adult Generation to Naturally Established Seedlings of Fagus orientalis in the Hyrcanian ForestHamed Yousefzadeh0Malek Nasiri1Narjes Amirchakhmaghi2Seyedeh Alemeh Sabbagh3Łukasz Walas4Gregor Kozlowski5Department of Forestry, Faculty of Natural Sciences, Tarbiat Modares University, Tehran, IranDepartment of Forestry, Faculty of Natural Resources, University of Tehran, Tehran, IranDepartment of Forestry, Faculty of Natural Sciences, Tarbiat Modares University, Tehran, IranDepartment of Environmental Science, Faculty of Natural Sciences, Tarbiat Modares University, Tehran, IranInstitute of Dendrology, Polish Academy of Sciences, Parkowa 5, 62-035 Kórnik, PolandDepartment of Biology and Botanic Garden, University of Fribourg, Chemin du Musée 10, CH-1700 Fribourg, SwitzerlandOriental beech (Fagus orientalis) is distributed from Turkey to northern Iran. It is one of the most economically important tree species in this natural distribution range and has been exploited for a long time in the Hyrcanian forest. This study compared genetic variation between adult individuals and recent cohorts of 1–3-year-old seedlings using 14 SSR primers in four pure stands of F. orientalis with over 90% canopy cover. The results showed that the expected heterozygosity (He) varied from 0.83 to 0.92 (mean value 0.88), and a significant difference was detected between the expected and observed heterozygosity. In total, 75 private alleles were detected; of these, 56 were rare and had a frequency below 0.05. Pairwise Fst values indicated that seedlings were more similar to each other than to mature trees in the same population. It was found that the populations in each pair (mature trees-seedlings) differed (global average D = 0.35). The average percentage of migrants in the population was 8.83% and varied from 6.64% to 13.41%. The genetic differentiation within the same stands, the genetic differences between adults and seedlings were also significant in some populations, and contemporary gene flow drastically decreased in the next generation. Therefore, the transfer of genetic variation between tree generations is currently strongly affected by anthropogenic influence, at least in the studied beech populations, leading to the high vulnerability of Oriental beech populations to future climate changes.https://sc.journals.umz.ac.ir/article_5160_1f06b28dcf362f086bc4616a41e8746a.pdfconservation strategygenetic diversityhyrcanian forestoriental beechsilviculture management |
| spellingShingle | Hamed Yousefzadeh Malek Nasiri Narjes Amirchakhmaghi Seyedeh Alemeh Sabbagh Łukasz Walas Gregor Kozlowski Transmission of Genetic Variation from the Adult Generation to Naturally Established Seedlings of Fagus orientalis in the Hyrcanian Forest Journal of Genetic Resources conservation strategy genetic diversity hyrcanian forest oriental beech silviculture management |
| title | Transmission of Genetic Variation from the Adult Generation to Naturally Established Seedlings of Fagus orientalis in the Hyrcanian Forest |
| title_full | Transmission of Genetic Variation from the Adult Generation to Naturally Established Seedlings of Fagus orientalis in the Hyrcanian Forest |
| title_fullStr | Transmission of Genetic Variation from the Adult Generation to Naturally Established Seedlings of Fagus orientalis in the Hyrcanian Forest |
| title_full_unstemmed | Transmission of Genetic Variation from the Adult Generation to Naturally Established Seedlings of Fagus orientalis in the Hyrcanian Forest |
| title_short | Transmission of Genetic Variation from the Adult Generation to Naturally Established Seedlings of Fagus orientalis in the Hyrcanian Forest |
| title_sort | transmission of genetic variation from the adult generation to naturally established seedlings of fagus orientalis in the hyrcanian forest |
| topic | conservation strategy genetic diversity hyrcanian forest oriental beech silviculture management |
| url | https://sc.journals.umz.ac.ir/article_5160_1f06b28dcf362f086bc4616a41e8746a.pdf |
| work_keys_str_mv | AT hamedyousefzadeh transmissionofgeneticvariationfromtheadultgenerationtonaturallyestablishedseedlingsoffagusorientalisinthehyrcanianforest AT maleknasiri transmissionofgeneticvariationfromtheadultgenerationtonaturallyestablishedseedlingsoffagusorientalisinthehyrcanianforest AT narjesamirchakhmaghi transmissionofgeneticvariationfromtheadultgenerationtonaturallyestablishedseedlingsoffagusorientalisinthehyrcanianforest AT seyedehalemehsabbagh transmissionofgeneticvariationfromtheadultgenerationtonaturallyestablishedseedlingsoffagusorientalisinthehyrcanianforest AT łukaszwalas transmissionofgeneticvariationfromtheadultgenerationtonaturallyestablishedseedlingsoffagusorientalisinthehyrcanianforest AT gregorkozlowski transmissionofgeneticvariationfromtheadultgenerationtonaturallyestablishedseedlingsoffagusorientalisinthehyrcanianforest |