Molecular Genetic Identification Explains Differences in Bud Burst Timing among Progenies of Selected Trees of the Swedish Douglas Fir Breeding Programme
Douglas fir is expected to play an increasingly important role in Swedish forestry under a changing climate. Thus far, seed orchards with clones of phenotypically selected trees (plus trees) have been established to supply the market with highly qualitative reproductive material. Given the high gene...
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MDPI AG
2022-06-01
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Online Access: | https://www.mdpi.com/1999-4907/13/6/895 |
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author | Charalambos Neophytou Hubert Hasenauer Johan Kroon |
author_facet | Charalambos Neophytou Hubert Hasenauer Johan Kroon |
author_sort | Charalambos Neophytou |
collection | DOAJ |
description | Douglas fir is expected to play an increasingly important role in Swedish forestry under a changing climate. Thus far, seed orchards with clones of phenotypically selected trees (plus trees) have been established to supply the market with highly qualitative reproductive material. Given the high genetic variation of the species, its growth properties are significantly affected by the provenance. Here, we applied microsatellite markers to identify the origin of clones selected within the Swedish breeding programme. Moreover, we analysed the timing of bud burst in open-pollinated families of these clones. In particular, we aimed to explain the provenance effect on phenology by using molecular identification as a proxy. A Bayesian clustering analysis with microsatellite data enabled the assignment of the clones to one of the two varieties and also resolved within-variety origins. The phenological observations indicated an earlier bud burst of the interior variety. Within the coastal variety, the northern provenances exhibited a later bud burst. We found a significant effect of the identified origin on bud burst timing. The results of this study will be used to support further breeding efforts. |
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format | Article |
id | doaj.art-8ba9e30a08974613b883005ca52907a6 |
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issn | 1999-4907 |
language | English |
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series | Forests |
spelling | doaj.art-8ba9e30a08974613b883005ca52907a62023-11-23T16:40:55ZengMDPI AGForests1999-49072022-06-0113689510.3390/f13060895Molecular Genetic Identification Explains Differences in Bud Burst Timing among Progenies of Selected Trees of the Swedish Douglas Fir Breeding ProgrammeCharalambos Neophytou0Hubert Hasenauer1Johan Kroon2Institute of Silviculture, Department of Forest and Soil Sciences, University of Natural Resources and Life Sciences (BOKU), A-1190 Vienna, AustriaInstitute of Silviculture, Department of Forest and Soil Sciences, University of Natural Resources and Life Sciences (BOKU), A-1190 Vienna, AustriaSkogforsk, Ekebo 2250, SE-268 90 Svalöv, SwedenDouglas fir is expected to play an increasingly important role in Swedish forestry under a changing climate. Thus far, seed orchards with clones of phenotypically selected trees (plus trees) have been established to supply the market with highly qualitative reproductive material. Given the high genetic variation of the species, its growth properties are significantly affected by the provenance. Here, we applied microsatellite markers to identify the origin of clones selected within the Swedish breeding programme. Moreover, we analysed the timing of bud burst in open-pollinated families of these clones. In particular, we aimed to explain the provenance effect on phenology by using molecular identification as a proxy. A Bayesian clustering analysis with microsatellite data enabled the assignment of the clones to one of the two varieties and also resolved within-variety origins. The phenological observations indicated an earlier bud burst of the interior variety. Within the coastal variety, the northern provenances exhibited a later bud burst. We found a significant effect of the identified origin on bud burst timing. The results of this study will be used to support further breeding efforts.https://www.mdpi.com/1999-4907/13/6/895<i>Pseudotsuga menziesii</i>non-native forest treeforest tree breedingmicrosatellitesphenologyorigin identification |
spellingShingle | Charalambos Neophytou Hubert Hasenauer Johan Kroon Molecular Genetic Identification Explains Differences in Bud Burst Timing among Progenies of Selected Trees of the Swedish Douglas Fir Breeding Programme Forests <i>Pseudotsuga menziesii</i> non-native forest tree forest tree breeding microsatellites phenology origin identification |
title | Molecular Genetic Identification Explains Differences in Bud Burst Timing among Progenies of Selected Trees of the Swedish Douglas Fir Breeding Programme |
title_full | Molecular Genetic Identification Explains Differences in Bud Burst Timing among Progenies of Selected Trees of the Swedish Douglas Fir Breeding Programme |
title_fullStr | Molecular Genetic Identification Explains Differences in Bud Burst Timing among Progenies of Selected Trees of the Swedish Douglas Fir Breeding Programme |
title_full_unstemmed | Molecular Genetic Identification Explains Differences in Bud Burst Timing among Progenies of Selected Trees of the Swedish Douglas Fir Breeding Programme |
title_short | Molecular Genetic Identification Explains Differences in Bud Burst Timing among Progenies of Selected Trees of the Swedish Douglas Fir Breeding Programme |
title_sort | molecular genetic identification explains differences in bud burst timing among progenies of selected trees of the swedish douglas fir breeding programme |
topic | <i>Pseudotsuga menziesii</i> non-native forest tree forest tree breeding microsatellites phenology origin identification |
url | https://www.mdpi.com/1999-4907/13/6/895 |
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