Genetic control of transition from juvenile to mature wood with respect to microfibril angle in Norway spruce ( Picea abies) and lodgepole pine ( Pinus contorta)
Genetic control of microfibril angle (MFA) transition from juvenile wood to mature wood was evaluated in Norway spruce (Picea abies (L.) Karst) and lodgepole pine (Pinus contorta Douglas ex Loudon). Increment cores were collected at breast height (1.3 m) from 5664 trees in two 21-year-old Norway spr...
Published in: | Canadian Journal of Forest Research |
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crcansciencepubl:10.1139/cjfr-2018-0140 2024-09-15T18:26:10+00:00 Genetic control of transition from juvenile to mature wood with respect to microfibril angle in Norway spruce ( Picea abies) and lodgepole pine ( Pinus contorta) Hayatgheibi, Haleh Forsberg, Nils Erik Gustaf Lundqvist, Sven-Olof Mörling, Tommy Mellerowicz, Ewa J. Karlsson, Bo Wu, Harry X. García-Gil, M. Rosario 2018 http://dx.doi.org/10.1139/cjfr-2018-0140 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfr-2018-0140 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfr-2018-0140 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Forest Research volume 48, issue 11, page 1358-1365 ISSN 0045-5067 1208-6037 journal-article 2018 crcansciencepubl https://doi.org/10.1139/cjfr-2018-0140 2024-09-05T04:11:15Z Genetic control of microfibril angle (MFA) transition from juvenile wood to mature wood was evaluated in Norway spruce (Picea abies (L.) Karst) and lodgepole pine (Pinus contorta Douglas ex Loudon). Increment cores were collected at breast height (1.3 m) from 5664 trees in two 21-year-old Norway spruce progeny trials in southern Sweden and from 823 trees in two lodgepole pine progeny trials, aged 34–35 years, in northern Sweden. Radial variations in MFA from pith to bark were measured for each core using SilviScan. To estimate MFA transition from juvenile wood to mature wood, a threshold level of MFA 20° was considered, and six different regression functions were fitted to the MFA profile of each tree after exclusion of outliers, following three steps. The narrow-sense heritability estimates (h 2 ) obtained for MFA transition were highest based on the slope function, ranging from 0.21 to 0.23 for Norway spruce and from 0.34 to 0.53 for lodgepole pine, while h 2 were mostly non-significant based on the logistic function, under all exclusion methods. Results of this study indicate that it is possible to select for an earlier MFA transition from juvenile wood to mature wood in Norway spruce and lodgepole pine selective breeding programs, as the genetic gains (ΔG) obtained in direct selection of this trait were very high in both species. Article in Journal/Newspaper Northern Sweden Canadian Science Publishing Canadian Journal of Forest Research 48 11 1358 1365 |
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English |
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Genetic control of microfibril angle (MFA) transition from juvenile wood to mature wood was evaluated in Norway spruce (Picea abies (L.) Karst) and lodgepole pine (Pinus contorta Douglas ex Loudon). Increment cores were collected at breast height (1.3 m) from 5664 trees in two 21-year-old Norway spruce progeny trials in southern Sweden and from 823 trees in two lodgepole pine progeny trials, aged 34–35 years, in northern Sweden. Radial variations in MFA from pith to bark were measured for each core using SilviScan. To estimate MFA transition from juvenile wood to mature wood, a threshold level of MFA 20° was considered, and six different regression functions were fitted to the MFA profile of each tree after exclusion of outliers, following three steps. The narrow-sense heritability estimates (h 2 ) obtained for MFA transition were highest based on the slope function, ranging from 0.21 to 0.23 for Norway spruce and from 0.34 to 0.53 for lodgepole pine, while h 2 were mostly non-significant based on the logistic function, under all exclusion methods. Results of this study indicate that it is possible to select for an earlier MFA transition from juvenile wood to mature wood in Norway spruce and lodgepole pine selective breeding programs, as the genetic gains (ΔG) obtained in direct selection of this trait were very high in both species. |
format |
Article in Journal/Newspaper |
author |
Hayatgheibi, Haleh Forsberg, Nils Erik Gustaf Lundqvist, Sven-Olof Mörling, Tommy Mellerowicz, Ewa J. Karlsson, Bo Wu, Harry X. García-Gil, M. Rosario |
spellingShingle |
Hayatgheibi, Haleh Forsberg, Nils Erik Gustaf Lundqvist, Sven-Olof Mörling, Tommy Mellerowicz, Ewa J. Karlsson, Bo Wu, Harry X. García-Gil, M. Rosario Genetic control of transition from juvenile to mature wood with respect to microfibril angle in Norway spruce ( Picea abies) and lodgepole pine ( Pinus contorta) |
author_facet |
Hayatgheibi, Haleh Forsberg, Nils Erik Gustaf Lundqvist, Sven-Olof Mörling, Tommy Mellerowicz, Ewa J. Karlsson, Bo Wu, Harry X. García-Gil, M. Rosario |
author_sort |
Hayatgheibi, Haleh |
title |
Genetic control of transition from juvenile to mature wood with respect to microfibril angle in Norway spruce ( Picea abies) and lodgepole pine ( Pinus contorta) |
title_short |
Genetic control of transition from juvenile to mature wood with respect to microfibril angle in Norway spruce ( Picea abies) and lodgepole pine ( Pinus contorta) |
title_full |
Genetic control of transition from juvenile to mature wood with respect to microfibril angle in Norway spruce ( Picea abies) and lodgepole pine ( Pinus contorta) |
title_fullStr |
Genetic control of transition from juvenile to mature wood with respect to microfibril angle in Norway spruce ( Picea abies) and lodgepole pine ( Pinus contorta) |
title_full_unstemmed |
Genetic control of transition from juvenile to mature wood with respect to microfibril angle in Norway spruce ( Picea abies) and lodgepole pine ( Pinus contorta) |
title_sort |
genetic control of transition from juvenile to mature wood with respect to microfibril angle in norway spruce ( picea abies) and lodgepole pine ( pinus contorta) |
publisher |
Canadian Science Publishing |
publishDate |
2018 |
url |
http://dx.doi.org/10.1139/cjfr-2018-0140 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfr-2018-0140 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfr-2018-0140 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Canadian Journal of Forest Research volume 48, issue 11, page 1358-1365 ISSN 0045-5067 1208-6037 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfr-2018-0140 |
container_title |
Canadian Journal of Forest Research |
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48 |
container_issue |
11 |
container_start_page |
1358 |
op_container_end_page |
1365 |
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1810466614191063040 |