Vivipary in Polygonum viviparum: an adaptation to cold climate?
Populations of Polygonurn viviparurn were investigated in the Swiss Alps at 14 sites, ranging from 450 m to 2530 m above sea level. The average length of stems and the mean number of reproductive organs (flowers + bulbils) decreased significantly with increasing altitude. On average, the ratio of fl...
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1993
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crwiley:10.1111/j.1756-1051.1993.tb00085.x 2023-12-03T10:29:21+01:00 Vivipary in Polygonum viviparum: an adaptation to cold climate? Bauert, Martin R. 1993 http://dx.doi.org/10.1111/j.1756-1051.1993.tb00085.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1756-1051.1993.tb00085.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1756-1051.1993.tb00085.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Nordic Journal of Botany volume 13, issue 5, page 473-480 ISSN 0107-055X 1756-1051 Plant Science Ecology, Evolution, Behavior and Systematics journal-article 1993 crwiley https://doi.org/10.1111/j.1756-1051.1993.tb00085.x 2023-11-09T13:57:50Z Populations of Polygonurn viviparurn were investigated in the Swiss Alps at 14 sites, ranging from 450 m to 2530 m above sea level. The average length of stems and the mean number of reproductive organs (flowers + bulbils) decreased significantly with increasing altitude. On average, the ratio of flowers to bulbils per inflorescence also declined so that at high altitudes, bulbil production was more pronounced. Increased allocation to vegetative reproduction is discussed as an adaptation to cold climate. It is suggested that enhanced vegetative reproduction might be controlled by incornplete floral induction in high altitudes. In addition variability within and between populations was investigated by isozyme electrophoresis and the examination of bulbil colours. A considerable amount of variability was found in alpine populations. The demonstrated genetic variability showed that in P. viviparum it is likely that minor sexual reproduction is maintained even under alpine conditions. This is reflected in different enzyme phenotypes and different bulbil colours. Article in Journal/Newspaper Polygonum viviparum Wiley Online Library (via Crossref) Nordic Journal of Botany 13 5 473 480 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Plant Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Plant Science Ecology, Evolution, Behavior and Systematics Bauert, Martin R. Vivipary in Polygonum viviparum: an adaptation to cold climate? |
topic_facet |
Plant Science Ecology, Evolution, Behavior and Systematics |
description |
Populations of Polygonurn viviparurn were investigated in the Swiss Alps at 14 sites, ranging from 450 m to 2530 m above sea level. The average length of stems and the mean number of reproductive organs (flowers + bulbils) decreased significantly with increasing altitude. On average, the ratio of flowers to bulbils per inflorescence also declined so that at high altitudes, bulbil production was more pronounced. Increased allocation to vegetative reproduction is discussed as an adaptation to cold climate. It is suggested that enhanced vegetative reproduction might be controlled by incornplete floral induction in high altitudes. In addition variability within and between populations was investigated by isozyme electrophoresis and the examination of bulbil colours. A considerable amount of variability was found in alpine populations. The demonstrated genetic variability showed that in P. viviparum it is likely that minor sexual reproduction is maintained even under alpine conditions. This is reflected in different enzyme phenotypes and different bulbil colours. |
format |
Article in Journal/Newspaper |
author |
Bauert, Martin R. |
author_facet |
Bauert, Martin R. |
author_sort |
Bauert, Martin R. |
title |
Vivipary in Polygonum viviparum: an adaptation to cold climate? |
title_short |
Vivipary in Polygonum viviparum: an adaptation to cold climate? |
title_full |
Vivipary in Polygonum viviparum: an adaptation to cold climate? |
title_fullStr |
Vivipary in Polygonum viviparum: an adaptation to cold climate? |
title_full_unstemmed |
Vivipary in Polygonum viviparum: an adaptation to cold climate? |
title_sort |
vivipary in polygonum viviparum: an adaptation to cold climate? |
publisher |
Wiley |
publishDate |
1993 |
url |
http://dx.doi.org/10.1111/j.1756-1051.1993.tb00085.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1756-1051.1993.tb00085.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1756-1051.1993.tb00085.x |
genre |
Polygonum viviparum |
genre_facet |
Polygonum viviparum |
op_source |
Nordic Journal of Botany volume 13, issue 5, page 473-480 ISSN 0107-055X 1756-1051 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1756-1051.1993.tb00085.x |
container_title |
Nordic Journal of Botany |
container_volume |
13 |
container_issue |
5 |
container_start_page |
473 |
op_container_end_page |
480 |
_version_ |
1784254653206102016 |