Evolutionary increase in sexual and clonal reproductive capacity during biological invasion in an aquatic plant Butomus umbellatus (Butomaceae)
To test the hypothesis that increased allocation to reproduction is selected during biological invasion, we compared germination, survival, growth, and reproduction of native vs. introduced populations of the invasive aquatic plant Butomus umbellatus in a common greenhouse environment. Although seed...
Published in: | American Journal of Botany |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2005
|
Subjects: | |
Online Access: | http://dx.doi.org/10.3732/ajb.92.3.495 https://onlinelibrary.wiley.com/doi/full/10.3732/ajb.92.3.495 |
id |
crwiley:10.3732/ajb.92.3.495 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.3732/ajb.92.3.495 2023-12-03T10:20:37+01:00 Evolutionary increase in sexual and clonal reproductive capacity during biological invasion in an aquatic plant Butomus umbellatus (Butomaceae) Brown, Jeremy S. Eckert, Christopher G. 2005 http://dx.doi.org/10.3732/ajb.92.3.495 https://onlinelibrary.wiley.com/doi/full/10.3732/ajb.92.3.495 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor American Journal of Botany volume 92, issue 3, page 495-502 ISSN 0002-9122 1537-2197 Plant Science Genetics Ecology, Evolution, Behavior and Systematics journal-article 2005 crwiley https://doi.org/10.3732/ajb.92.3.495 2023-11-09T13:40:55Z To test the hypothesis that increased allocation to reproduction is selected during biological invasion, we compared germination, survival, growth, and reproduction of native vs. introduced populations of the invasive aquatic plant Butomus umbellatus in a common greenhouse environment. Although seedling emergence and establishment did not differ consistently, survival thereafter was twice as high for eight introduced North American than eight native European populations. As predicted, introduced plants were more likely to produce sexual inflorescences and clonal asexual vegetative bulbils, and they invested much more biomass in both reproductive modes. Higher reproductive investment was due to higher proportional allocation of biomass rather than larger plant size. These results are consistent with selection for increased reproduction during range expansion. However, population genetic surveys indicate that recruitment from seed rarely occurs in introduced populations. Hence increased sexual allocation is not an adaptive response to invasion. Although increased clonal reproduction may be advantageous in expanding populations, genetic evidence from introduced populations of B. umbellatus suggests that increased clonal allocation may have arisen via stochastic processes during long‐distance transport or a selective filter right at introduction, rather than incremental natural selection during range expansion. Article in Journal/Newspaper Butomus umbellatus Wiley Online Library (via Crossref) American Journal of Botany 92 3 495 502 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Plant Science Genetics Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Plant Science Genetics Ecology, Evolution, Behavior and Systematics Brown, Jeremy S. Eckert, Christopher G. Evolutionary increase in sexual and clonal reproductive capacity during biological invasion in an aquatic plant Butomus umbellatus (Butomaceae) |
topic_facet |
Plant Science Genetics Ecology, Evolution, Behavior and Systematics |
description |
To test the hypothesis that increased allocation to reproduction is selected during biological invasion, we compared germination, survival, growth, and reproduction of native vs. introduced populations of the invasive aquatic plant Butomus umbellatus in a common greenhouse environment. Although seedling emergence and establishment did not differ consistently, survival thereafter was twice as high for eight introduced North American than eight native European populations. As predicted, introduced plants were more likely to produce sexual inflorescences and clonal asexual vegetative bulbils, and they invested much more biomass in both reproductive modes. Higher reproductive investment was due to higher proportional allocation of biomass rather than larger plant size. These results are consistent with selection for increased reproduction during range expansion. However, population genetic surveys indicate that recruitment from seed rarely occurs in introduced populations. Hence increased sexual allocation is not an adaptive response to invasion. Although increased clonal reproduction may be advantageous in expanding populations, genetic evidence from introduced populations of B. umbellatus suggests that increased clonal allocation may have arisen via stochastic processes during long‐distance transport or a selective filter right at introduction, rather than incremental natural selection during range expansion. |
format |
Article in Journal/Newspaper |
author |
Brown, Jeremy S. Eckert, Christopher G. |
author_facet |
Brown, Jeremy S. Eckert, Christopher G. |
author_sort |
Brown, Jeremy S. |
title |
Evolutionary increase in sexual and clonal reproductive capacity during biological invasion in an aquatic plant Butomus umbellatus (Butomaceae) |
title_short |
Evolutionary increase in sexual and clonal reproductive capacity during biological invasion in an aquatic plant Butomus umbellatus (Butomaceae) |
title_full |
Evolutionary increase in sexual and clonal reproductive capacity during biological invasion in an aquatic plant Butomus umbellatus (Butomaceae) |
title_fullStr |
Evolutionary increase in sexual and clonal reproductive capacity during biological invasion in an aquatic plant Butomus umbellatus (Butomaceae) |
title_full_unstemmed |
Evolutionary increase in sexual and clonal reproductive capacity during biological invasion in an aquatic plant Butomus umbellatus (Butomaceae) |
title_sort |
evolutionary increase in sexual and clonal reproductive capacity during biological invasion in an aquatic plant butomus umbellatus (butomaceae) |
publisher |
Wiley |
publishDate |
2005 |
url |
http://dx.doi.org/10.3732/ajb.92.3.495 https://onlinelibrary.wiley.com/doi/full/10.3732/ajb.92.3.495 |
genre |
Butomus umbellatus |
genre_facet |
Butomus umbellatus |
op_source |
American Journal of Botany volume 92, issue 3, page 495-502 ISSN 0002-9122 1537-2197 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.3732/ajb.92.3.495 |
container_title |
American Journal of Botany |
container_volume |
92 |
container_issue |
3 |
container_start_page |
495 |
op_container_end_page |
502 |
_version_ |
1784268065799667712 |