Genetic structure of marginal populations of white spruce ( Picea glauca ) at its northern limit of distribution in Nouveau-Québec
The genetic structure of six marginal populations of white spruce (Piceaglauca (Moench) Voss) located at Richmond Gulf in the subarctic region of Nouveau-Québec, and one southern population located at Kuujjuaraapik (Poste-de-la-Baleine) were analyzed by acrylamide gel electrophoresis for seven enzym...
Published in: | Canadian Journal of Forest Research |
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Canadian Science Publishing
1989
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Online Access: | http://dx.doi.org/10.1139/x89-211 http://www.nrcresearchpress.com/doi/pdf/10.1139/x89-211 |
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crcansciencepubl:10.1139/x89-211 2023-12-17T10:50:47+01:00 Genetic structure of marginal populations of white spruce ( Picea glauca ) at its northern limit of distribution in Nouveau-Québec Tremblay, Monique Simon, Jean-Pierre 1989 http://dx.doi.org/10.1139/x89-211 http://www.nrcresearchpress.com/doi/pdf/10.1139/x89-211 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Forest Research volume 19, issue 11, page 1371-1379 ISSN 0045-5067 1208-6037 Ecology Forestry Global and Planetary Change journal-article 1989 crcansciencepubl https://doi.org/10.1139/x89-211 2023-11-19T13:38:56Z The genetic structure of six marginal populations of white spruce (Piceaglauca (Moench) Voss) located at Richmond Gulf in the subarctic region of Nouveau-Québec, and one southern population located at Kuujjuaraapik (Poste-de-la-Baleine) were analyzed by acrylamide gel electrophoresis for seven enzyme systems. The analysis of 27 loci disclosed an average polymorphism of 76.2% and a level of heterozygosity of 0.319. Data based on Wright's; statistics: indicated a deficiency of heterozygotes for 60% of the loci, as calculated from the Hardy–Weinberg equilibrium. These results, coupled with the very low percentage of filled seeds in cones of all populations, suggest that a certain level of inbreeding or gene exchange among near-neighbour relatives influences the genetic structure of these populations. The genetic differentiation among populations is relatively high for a conifer [Formula: see text] and is not correlated with geographic distance. The age of trees, covering a period of 400 years affected by climatic changes, does not contribute to the genetic differentiation of the populations. Article in Journal/Newspaper Subarctic Canadian Science Publishing (via Crossref) Baleine ENVELOPE(140.012,140.012,-66.649,-66.649) la Baleine ENVELOPE(140.012,140.012,-66.649,-66.649) Poste-de-la-Baleine ENVELOPE(-77.750,-77.750,55.284,55.284) Canadian Journal of Forest Research 19 11 1371 1379 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Ecology Forestry Global and Planetary Change |
spellingShingle |
Ecology Forestry Global and Planetary Change Tremblay, Monique Simon, Jean-Pierre Genetic structure of marginal populations of white spruce ( Picea glauca ) at its northern limit of distribution in Nouveau-Québec |
topic_facet |
Ecology Forestry Global and Planetary Change |
description |
The genetic structure of six marginal populations of white spruce (Piceaglauca (Moench) Voss) located at Richmond Gulf in the subarctic region of Nouveau-Québec, and one southern population located at Kuujjuaraapik (Poste-de-la-Baleine) were analyzed by acrylamide gel electrophoresis for seven enzyme systems. The analysis of 27 loci disclosed an average polymorphism of 76.2% and a level of heterozygosity of 0.319. Data based on Wright's; statistics: indicated a deficiency of heterozygotes for 60% of the loci, as calculated from the Hardy–Weinberg equilibrium. These results, coupled with the very low percentage of filled seeds in cones of all populations, suggest that a certain level of inbreeding or gene exchange among near-neighbour relatives influences the genetic structure of these populations. The genetic differentiation among populations is relatively high for a conifer [Formula: see text] and is not correlated with geographic distance. The age of trees, covering a period of 400 years affected by climatic changes, does not contribute to the genetic differentiation of the populations. |
format |
Article in Journal/Newspaper |
author |
Tremblay, Monique Simon, Jean-Pierre |
author_facet |
Tremblay, Monique Simon, Jean-Pierre |
author_sort |
Tremblay, Monique |
title |
Genetic structure of marginal populations of white spruce ( Picea glauca ) at its northern limit of distribution in Nouveau-Québec |
title_short |
Genetic structure of marginal populations of white spruce ( Picea glauca ) at its northern limit of distribution in Nouveau-Québec |
title_full |
Genetic structure of marginal populations of white spruce ( Picea glauca ) at its northern limit of distribution in Nouveau-Québec |
title_fullStr |
Genetic structure of marginal populations of white spruce ( Picea glauca ) at its northern limit of distribution in Nouveau-Québec |
title_full_unstemmed |
Genetic structure of marginal populations of white spruce ( Picea glauca ) at its northern limit of distribution in Nouveau-Québec |
title_sort |
genetic structure of marginal populations of white spruce ( picea glauca ) at its northern limit of distribution in nouveau-québec |
publisher |
Canadian Science Publishing |
publishDate |
1989 |
url |
http://dx.doi.org/10.1139/x89-211 http://www.nrcresearchpress.com/doi/pdf/10.1139/x89-211 |
long_lat |
ENVELOPE(140.012,140.012,-66.649,-66.649) ENVELOPE(140.012,140.012,-66.649,-66.649) ENVELOPE(-77.750,-77.750,55.284,55.284) |
geographic |
Baleine la Baleine Poste-de-la-Baleine |
geographic_facet |
Baleine la Baleine Poste-de-la-Baleine |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Canadian Journal of Forest Research volume 19, issue 11, page 1371-1379 ISSN 0045-5067 1208-6037 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/x89-211 |
container_title |
Canadian Journal of Forest Research |
container_volume |
19 |
container_issue |
11 |
container_start_page |
1371 |
op_container_end_page |
1379 |
_version_ |
1785575842595733504 |