Variation in sexual and clonal reproduction among introduced populations of flowering rush, Butomus umbellatus (Butomaceae)
Butomus umbellatus L. is an invasive emergent aquatic plant that exhibits wide variation in seed production. Native European populations are fertile and diploid or sterile and triploid. However, adventive North American populations are widely reported to be sexually sterile. We quantified sexual fer...
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crcansciencepubl:10.1139/b00-019 2023-12-17T10:28:25+01:00 Variation in sexual and clonal reproduction among introduced populations of flowering rush, Butomus umbellatus (Butomaceae) Eckert, Christopher G Massonnet, Blandine Thomas, Julia J 2000 http://dx.doi.org/10.1139/b00-019 http://www.nrcresearchpress.com/doi/pdf/10.1139/b00-019 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Botany volume 78, issue 4, page 437-446 ISSN 0008-4026 Plant Science journal-article 2000 crcansciencepubl https://doi.org/10.1139/b00-019 2023-11-19T13:38:44Z Butomus umbellatus L. is an invasive emergent aquatic plant that exhibits wide variation in seed production. Native European populations are fertile and diploid or sterile and triploid. However, adventive North American populations are widely reported to be sexually sterile. We quantified sexual fertility and self-compatibility under greenhouse conditions for nine introduced populations from eastern Ontario, Canada. All populations were highly fertile and self-compatible. Each flower produced an average of 127 ± 7 (mean ± SE) filled seeds and 31.4 ± 0.4% of seeds germinated. This level of fertility is much higher than previously reported, even for fertile native populations. We also quantified the production of seeds, flowers, and inflorescence-borne asexual bulbils in 19 natural populations from eastern Ontario; 17 populations were highly fertile (200 ± 9 seeds/fruit) and 2 produced almost no seeds (0.0-0.3 seeds/fruit), because ovules were either not fertilized or were aborted soon after fertilization. We found no evidence of a trade-off between sexual reproduction and clonal reproduction via bulbils. The wide variation in reproductive strategy observed in these populations raises questions concerning the evolutionary loss of sex in clonal populations, and may have significant implications for the spread and management of this exotic species.Key words: aquatic plants, clonal reproduction, breeding systems, invasive plants, reproductive ecology, sexual sterility. Article in Journal/Newspaper Butomus umbellatus Canadian Science Publishing (via Crossref) Canada Canadian Journal of Botany 78 4 437 446 |
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Canadian Science Publishing (via Crossref) |
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English |
topic |
Plant Science |
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Plant Science Eckert, Christopher G Massonnet, Blandine Thomas, Julia J Variation in sexual and clonal reproduction among introduced populations of flowering rush, Butomus umbellatus (Butomaceae) |
topic_facet |
Plant Science |
description |
Butomus umbellatus L. is an invasive emergent aquatic plant that exhibits wide variation in seed production. Native European populations are fertile and diploid or sterile and triploid. However, adventive North American populations are widely reported to be sexually sterile. We quantified sexual fertility and self-compatibility under greenhouse conditions for nine introduced populations from eastern Ontario, Canada. All populations were highly fertile and self-compatible. Each flower produced an average of 127 ± 7 (mean ± SE) filled seeds and 31.4 ± 0.4% of seeds germinated. This level of fertility is much higher than previously reported, even for fertile native populations. We also quantified the production of seeds, flowers, and inflorescence-borne asexual bulbils in 19 natural populations from eastern Ontario; 17 populations were highly fertile (200 ± 9 seeds/fruit) and 2 produced almost no seeds (0.0-0.3 seeds/fruit), because ovules were either not fertilized or were aborted soon after fertilization. We found no evidence of a trade-off between sexual reproduction and clonal reproduction via bulbils. The wide variation in reproductive strategy observed in these populations raises questions concerning the evolutionary loss of sex in clonal populations, and may have significant implications for the spread and management of this exotic species.Key words: aquatic plants, clonal reproduction, breeding systems, invasive plants, reproductive ecology, sexual sterility. |
format |
Article in Journal/Newspaper |
author |
Eckert, Christopher G Massonnet, Blandine Thomas, Julia J |
author_facet |
Eckert, Christopher G Massonnet, Blandine Thomas, Julia J |
author_sort |
Eckert, Christopher G |
title |
Variation in sexual and clonal reproduction among introduced populations of flowering rush, Butomus umbellatus (Butomaceae) |
title_short |
Variation in sexual and clonal reproduction among introduced populations of flowering rush, Butomus umbellatus (Butomaceae) |
title_full |
Variation in sexual and clonal reproduction among introduced populations of flowering rush, Butomus umbellatus (Butomaceae) |
title_fullStr |
Variation in sexual and clonal reproduction among introduced populations of flowering rush, Butomus umbellatus (Butomaceae) |
title_full_unstemmed |
Variation in sexual and clonal reproduction among introduced populations of flowering rush, Butomus umbellatus (Butomaceae) |
title_sort |
variation in sexual and clonal reproduction among introduced populations of flowering rush, butomus umbellatus (butomaceae) |
publisher |
Canadian Science Publishing |
publishDate |
2000 |
url |
http://dx.doi.org/10.1139/b00-019 http://www.nrcresearchpress.com/doi/pdf/10.1139/b00-019 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Butomus umbellatus |
genre_facet |
Butomus umbellatus |
op_source |
Canadian Journal of Botany volume 78, issue 4, page 437-446 ISSN 0008-4026 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b00-019 |
container_title |
Canadian Journal of Botany |
container_volume |
78 |
container_issue |
4 |
container_start_page |
437 |
op_container_end_page |
446 |
_version_ |
1785580514645639168 |