Understanding population history for conservation purposes: population genetics of Saxifraga aizoides (Saxifragaceae) in the lowlands and lower mountains north of the Alps
Several alpine species have outlying populations in the lowlands and lower mountains north of the Alps. These small, isolated populations are usually described as either (1) glacial relics, (2) descendants from populations living on forelands and moraines during the ice ages, or (3) populations foun...
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crwiley:10.2307/2656602 2024-03-31T07:55:14+00:00 Understanding population history for conservation purposes: population genetics of Saxifraga aizoides (Saxifragaceae) in the lowlands and lower mountains north of the Alps Lutz, Eva Schneller, J. Jakob Holderegger, Rolf Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung 2000 http://dx.doi.org/10.2307/2656602 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.2307%2F2656602 http://onlinelibrary.wiley.com/wol1/doi/10.2307/2656602/fullpdf en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor American Journal of Botany volume 87, issue 4, page 583-590 ISSN 0002-9122 1537-2197 Plant Science Genetics Ecology, Evolution, Behavior and Systematics journal-article 2000 crwiley https://doi.org/10.2307/2656602 2024-03-05T05:46:56Z Several alpine species have outlying populations in the lowlands and lower mountains north of the Alps. These small, isolated populations are usually described as either (1) glacial relics, (2) descendants from populations living on forelands and moraines during the ice ages, or (3) populations founded by long‐distance dispersal after glaciation. A floristic survey of the historic and present distributions and an allozyme investigation were performed on one of these relic species, Saxifraga aizoides. The species was historically more abundant and had more stations in more regions of northeastern Switzerland. The former population structures within regions, nowadays destroyed, were still reflected in distinct and high regional genetic diversity and variation. There was weak evidence of increased inbreeding in outlying populations, but populations did not deviate from Hardy‐Weinberg equilibrium. No geographic pattern of genetic variation above the regional scale (>10 km) was found. Based on the spatial and genetic structures found, it was not possible to discriminate between the abovementioned hypotheses. Nevertheless, the study shows how a thorough evaluation of distribution and abundance data aids the interpretation of genetic data with respect to population history, biogeography, and conservation biology. Article in Journal/Newspaper Saxifraga aizoides Wiley Online Library American Journal of Botany 87 4 583 590 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Plant Science Genetics Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Plant Science Genetics Ecology, Evolution, Behavior and Systematics Lutz, Eva Schneller, J. Jakob Holderegger, Rolf Understanding population history for conservation purposes: population genetics of Saxifraga aizoides (Saxifragaceae) in the lowlands and lower mountains north of the Alps |
topic_facet |
Plant Science Genetics Ecology, Evolution, Behavior and Systematics |
description |
Several alpine species have outlying populations in the lowlands and lower mountains north of the Alps. These small, isolated populations are usually described as either (1) glacial relics, (2) descendants from populations living on forelands and moraines during the ice ages, or (3) populations founded by long‐distance dispersal after glaciation. A floristic survey of the historic and present distributions and an allozyme investigation were performed on one of these relic species, Saxifraga aizoides. The species was historically more abundant and had more stations in more regions of northeastern Switzerland. The former population structures within regions, nowadays destroyed, were still reflected in distinct and high regional genetic diversity and variation. There was weak evidence of increased inbreeding in outlying populations, but populations did not deviate from Hardy‐Weinberg equilibrium. No geographic pattern of genetic variation above the regional scale (>10 km) was found. Based on the spatial and genetic structures found, it was not possible to discriminate between the abovementioned hypotheses. Nevertheless, the study shows how a thorough evaluation of distribution and abundance data aids the interpretation of genetic data with respect to population history, biogeography, and conservation biology. |
author2 |
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung |
format |
Article in Journal/Newspaper |
author |
Lutz, Eva Schneller, J. Jakob Holderegger, Rolf |
author_facet |
Lutz, Eva Schneller, J. Jakob Holderegger, Rolf |
author_sort |
Lutz, Eva |
title |
Understanding population history for conservation purposes: population genetics of Saxifraga aizoides (Saxifragaceae) in the lowlands and lower mountains north of the Alps |
title_short |
Understanding population history for conservation purposes: population genetics of Saxifraga aizoides (Saxifragaceae) in the lowlands and lower mountains north of the Alps |
title_full |
Understanding population history for conservation purposes: population genetics of Saxifraga aizoides (Saxifragaceae) in the lowlands and lower mountains north of the Alps |
title_fullStr |
Understanding population history for conservation purposes: population genetics of Saxifraga aizoides (Saxifragaceae) in the lowlands and lower mountains north of the Alps |
title_full_unstemmed |
Understanding population history for conservation purposes: population genetics of Saxifraga aizoides (Saxifragaceae) in the lowlands and lower mountains north of the Alps |
title_sort |
understanding population history for conservation purposes: population genetics of saxifraga aizoides (saxifragaceae) in the lowlands and lower mountains north of the alps |
publisher |
Wiley |
publishDate |
2000 |
url |
http://dx.doi.org/10.2307/2656602 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.2307%2F2656602 http://onlinelibrary.wiley.com/wol1/doi/10.2307/2656602/fullpdf |
genre |
Saxifraga aizoides |
genre_facet |
Saxifraga aizoides |
op_source |
American Journal of Botany volume 87, issue 4, page 583-590 ISSN 0002-9122 1537-2197 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.2307/2656602 |
container_title |
American Journal of Botany |
container_volume |
87 |
container_issue |
4 |
container_start_page |
583 |
op_container_end_page |
590 |
_version_ |
1795036855702388736 |