Gišogenetic Variation in White-Spruce (Picea glauca (Moench) Voss) Trees of Yukon Beringia, Canada
Gišogenesis, otherwise known as secondary-xylem development, was investigated in an old-growth upland population of white spruce (Picea glauca (Moench) Voss) trees having morphologically diverse crowns and growing on a south slope north of East Fork Creek bordering never-glaciated Yukon Beringia. Af...
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ftmdpi:oai:mdpi.com:/1999-4907/14/4/787/ 2023-08-20T04:10:24+02:00 Gišogenetic Variation in White-Spruce (Picea glauca (Moench) Voss) Trees of Yukon Beringia, Canada Rodney Arthur Savidge Xin Yuan Hartmut Foerster agris 2023-04-11 application/pdf https://doi.org/10.3390/f14040787 EN eng Multidisciplinary Digital Publishing Institute Forest Ecophysiology and Biology https://dx.doi.org/10.3390/f14040787 https://creativecommons.org/licenses/by/4.0/ Forests; Volume 14; Issue 4; Pages: 787 Beringia cambial growth diameter growth diversification gišogenesis Mount Nansen phloegenesis vascular cambium white spruce wood formation xylogenesis Text 2023 ftmdpi https://doi.org/10.3390/f14040787 2023-08-01T09:39:05Z Gišogenesis, otherwise known as secondary-xylem development, was investigated in an old-growth upland population of white spruce (Picea glauca (Moench) Voss) trees having morphologically diverse crowns and growing on a south slope north of East Fork Creek bordering never-glaciated Yukon Beringia. After tree felling, trunks were segmented into one-metre lengths. In the laboratory, widths of xylem layers were measured across the four cardinal directions at each height, followed by Pearson’s product momentum correlations to evaluate variation in historical gišogenetic vigour within and between trees. Substantial variation was found, and it cannot readily be explained in terms of differences in extrinsic environment. Physiological differences in intrinsic gišogenetic regulation within a genetically diverse population, comprising both refugia and recent recruits, is proposed as a probable explanation, thus emphasizing the individuality of each tree’s internal control over how it responds to the extrinsic environment. Further investigations within Yukon Beringia may yield insight into evolutionary diversification of gišogenesis. Text Beringia Yukon MDPI Open Access Publishing Canada Mount Nansen ENVELOPE(163.167,163.167,-74.883,-74.883) Yukon Forests 14 4 787 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
Beringia cambial growth diameter growth diversification gišogenesis Mount Nansen phloegenesis vascular cambium white spruce wood formation xylogenesis |
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Beringia cambial growth diameter growth diversification gišogenesis Mount Nansen phloegenesis vascular cambium white spruce wood formation xylogenesis Rodney Arthur Savidge Xin Yuan Hartmut Foerster Gišogenetic Variation in White-Spruce (Picea glauca (Moench) Voss) Trees of Yukon Beringia, Canada |
topic_facet |
Beringia cambial growth diameter growth diversification gišogenesis Mount Nansen phloegenesis vascular cambium white spruce wood formation xylogenesis |
description |
Gišogenesis, otherwise known as secondary-xylem development, was investigated in an old-growth upland population of white spruce (Picea glauca (Moench) Voss) trees having morphologically diverse crowns and growing on a south slope north of East Fork Creek bordering never-glaciated Yukon Beringia. After tree felling, trunks were segmented into one-metre lengths. In the laboratory, widths of xylem layers were measured across the four cardinal directions at each height, followed by Pearson’s product momentum correlations to evaluate variation in historical gišogenetic vigour within and between trees. Substantial variation was found, and it cannot readily be explained in terms of differences in extrinsic environment. Physiological differences in intrinsic gišogenetic regulation within a genetically diverse population, comprising both refugia and recent recruits, is proposed as a probable explanation, thus emphasizing the individuality of each tree’s internal control over how it responds to the extrinsic environment. Further investigations within Yukon Beringia may yield insight into evolutionary diversification of gišogenesis. |
format |
Text |
author |
Rodney Arthur Savidge Xin Yuan Hartmut Foerster |
author_facet |
Rodney Arthur Savidge Xin Yuan Hartmut Foerster |
author_sort |
Rodney Arthur Savidge |
title |
Gišogenetic Variation in White-Spruce (Picea glauca (Moench) Voss) Trees of Yukon Beringia, Canada |
title_short |
Gišogenetic Variation in White-Spruce (Picea glauca (Moench) Voss) Trees of Yukon Beringia, Canada |
title_full |
Gišogenetic Variation in White-Spruce (Picea glauca (Moench) Voss) Trees of Yukon Beringia, Canada |
title_fullStr |
Gišogenetic Variation in White-Spruce (Picea glauca (Moench) Voss) Trees of Yukon Beringia, Canada |
title_full_unstemmed |
Gišogenetic Variation in White-Spruce (Picea glauca (Moench) Voss) Trees of Yukon Beringia, Canada |
title_sort |
gišogenetic variation in white-spruce (picea glauca (moench) voss) trees of yukon beringia, canada |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/f14040787 |
op_coverage |
agris |
long_lat |
ENVELOPE(163.167,163.167,-74.883,-74.883) |
geographic |
Canada Mount Nansen Yukon |
geographic_facet |
Canada Mount Nansen Yukon |
genre |
Beringia Yukon |
genre_facet |
Beringia Yukon |
op_source |
Forests; Volume 14; Issue 4; Pages: 787 |
op_relation |
Forest Ecophysiology and Biology https://dx.doi.org/10.3390/f14040787 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/f14040787 |
container_title |
Forests |
container_volume |
14 |
container_issue |
4 |
container_start_page |
787 |
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1774724584921104384 |