Sex ratio and spatial distribution of male and female Antennaria dioica (Asteraceae) plants
Sex ratio, sex spatial distribution and sexual dimorphism in reproduction and arbuscular mycorrhizal colonisation were investigated in the dioecious clonal plant Antennaria dioica (Asteraceae). Plants were monitored for five consecutive years in six study plots in Oulanka, northern Finland. Sex rati...
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ftulincoln:oai:eprints.lincoln.ac.uk:28706 2023-05-15T17:42:30+02:00 Sex ratio and spatial distribution of male and female Antennaria dioica (Asteraceae) plants Varga, Sandra Kytöviita, Minna-Maarit 2011-09-01 application/pdf https://eprints.lincoln.ac.uk/id/eprint/28706/ https://eprints.lincoln.ac.uk/id/eprint/28706/1/28706%20Varga%20%20Kytoviita%202011%20Acta%20Oecologica.pdf https://doi.org/10.1016/j.actao.2011.05.011 en eng Elsevier https://eprints.lincoln.ac.uk/id/eprint/28706/1/28706%20Varga%20%20Kytoviita%202011%20Acta%20Oecologica.pdf Varga, Sandra and Kytöviita, Minna-Maarit (2011) Sex ratio and spatial distribution of male and female Antennaria dioica (Asteraceae) plants. Acta Oecologica, 37 (5). pp. 433-440. ISSN 1146-609X doi:10.1016/j.actao.2011.05.011 C750 Plant Biochemistry Article PeerReviewed 2011 ftulincoln https://doi.org/10.1016/j.actao.2011.05.011 2022-03-02T20:09:09Z Sex ratio, sex spatial distribution and sexual dimorphism in reproduction and arbuscular mycorrhizal colonisation were investigated in the dioecious clonal plant Antennaria dioica (Asteraceae). Plants were monitored for five consecutive years in six study plots in Oulanka, northern Finland. Sex ratio, spatial distribution of sexes, flowering frequency, number of floral shoots and the number and weight of inflorescences were recorded. In addition, intensity of mycorrhizal fungi in the roots was assessed. Both sexes flowered each year with a similar frequency, but the overall genet sex ratio was strongly female-biased. The bivariate Ripley’s analysis of the sex distribution showed that within most plots sexes were randomly distributed except for one plot. Sexual dimorphism was expressed as larger floral and inflorescence production and heavier inflorescences in males. In addition, the roots of both sexes were colonised to a similar extent by arbuscular mycorrhizal fungi. The female sex-biased flowering ratios reported are not consistent among years and cannot be explained in terms of spatial segregation of the sexes or sex lability. The possible reasons for the female-biased sex ratio are discussed. Article in Journal/Newspaper Northern Finland University of Lincoln: Lincoln Repository Oulanka ENVELOPE(28.986,28.986,66.455,66.455) Acta Oecologica 37 5 433 440 |
institution |
Open Polar |
collection |
University of Lincoln: Lincoln Repository |
op_collection_id |
ftulincoln |
language |
English |
topic |
C750 Plant Biochemistry |
spellingShingle |
C750 Plant Biochemistry Varga, Sandra Kytöviita, Minna-Maarit Sex ratio and spatial distribution of male and female Antennaria dioica (Asteraceae) plants |
topic_facet |
C750 Plant Biochemistry |
description |
Sex ratio, sex spatial distribution and sexual dimorphism in reproduction and arbuscular mycorrhizal colonisation were investigated in the dioecious clonal plant Antennaria dioica (Asteraceae). Plants were monitored for five consecutive years in six study plots in Oulanka, northern Finland. Sex ratio, spatial distribution of sexes, flowering frequency, number of floral shoots and the number and weight of inflorescences were recorded. In addition, intensity of mycorrhizal fungi in the roots was assessed. Both sexes flowered each year with a similar frequency, but the overall genet sex ratio was strongly female-biased. The bivariate Ripley’s analysis of the sex distribution showed that within most plots sexes were randomly distributed except for one plot. Sexual dimorphism was expressed as larger floral and inflorescence production and heavier inflorescences in males. In addition, the roots of both sexes were colonised to a similar extent by arbuscular mycorrhizal fungi. The female sex-biased flowering ratios reported are not consistent among years and cannot be explained in terms of spatial segregation of the sexes or sex lability. The possible reasons for the female-biased sex ratio are discussed. |
format |
Article in Journal/Newspaper |
author |
Varga, Sandra Kytöviita, Minna-Maarit |
author_facet |
Varga, Sandra Kytöviita, Minna-Maarit |
author_sort |
Varga, Sandra |
title |
Sex ratio and spatial distribution of male and female Antennaria dioica (Asteraceae) plants |
title_short |
Sex ratio and spatial distribution of male and female Antennaria dioica (Asteraceae) plants |
title_full |
Sex ratio and spatial distribution of male and female Antennaria dioica (Asteraceae) plants |
title_fullStr |
Sex ratio and spatial distribution of male and female Antennaria dioica (Asteraceae) plants |
title_full_unstemmed |
Sex ratio and spatial distribution of male and female Antennaria dioica (Asteraceae) plants |
title_sort |
sex ratio and spatial distribution of male and female antennaria dioica (asteraceae) plants |
publisher |
Elsevier |
publishDate |
2011 |
url |
https://eprints.lincoln.ac.uk/id/eprint/28706/ https://eprints.lincoln.ac.uk/id/eprint/28706/1/28706%20Varga%20%20Kytoviita%202011%20Acta%20Oecologica.pdf https://doi.org/10.1016/j.actao.2011.05.011 |
long_lat |
ENVELOPE(28.986,28.986,66.455,66.455) |
geographic |
Oulanka |
geographic_facet |
Oulanka |
genre |
Northern Finland |
genre_facet |
Northern Finland |
op_relation |
https://eprints.lincoln.ac.uk/id/eprint/28706/1/28706%20Varga%20%20Kytoviita%202011%20Acta%20Oecologica.pdf Varga, Sandra and Kytöviita, Minna-Maarit (2011) Sex ratio and spatial distribution of male and female Antennaria dioica (Asteraceae) plants. Acta Oecologica, 37 (5). pp. 433-440. ISSN 1146-609X doi:10.1016/j.actao.2011.05.011 |
op_doi |
https://doi.org/10.1016/j.actao.2011.05.011 |
container_title |
Acta Oecologica |
container_volume |
37 |
container_issue |
5 |
container_start_page |
433 |
op_container_end_page |
440 |
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1766144379759624192 |