Is Silene acaulis (Caryophyllaceae) a trioecious species? Reproductive biology of two subspecies
International audience Based on morphological characters, Silene acaulis subsp. exscapa and Silene acaulis subsp. cenisia have been previously described as dioecious and trioecious, respectively. Here we examine whether these subspecies are truly dioecious (subsp. exscapa) and trioecious (subsp. cen...
Published in: | Canadian Journal of Botany |
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1998
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Online Access: | https://hal.archives-ouvertes.fr/halsde-00350052 https://doi.org/10.1139/cjb-76-3-478 |
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ftccsdartic:oai:HAL:halsde-00350052v1 2023-05-15T18:19:44+02:00 Is Silene acaulis (Caryophyllaceae) a trioecious species? Reproductive biology of two subspecies Maurice, Sandrine Desfeux, Christine Mignot, Agnès Henri, Jean-Pierre Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) Ecologie Systématique et Evolution (ESE) Ecole Nationale du Génie Rural, des Eaux et des Forêts (ENGREF)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS) 1998-03 https://hal.archives-ouvertes.fr/halsde-00350052 https://doi.org/10.1139/cjb-76-3-478 en eng HAL CCSD National Research Council Canada info:eu-repo/semantics/altIdentifier/doi/10.1139/cjb-76-3-478 halsde-00350052 https://hal.archives-ouvertes.fr/halsde-00350052 doi:10.1139/cjb-76-3-478 ISSN: 0008-4026 EISSN: 1480-3305 Canadian Journal of Botany https://hal.archives-ouvertes.fr/halsde-00350052 Canadian Journal of Botany, National Research Council Canada, 1998, 76 (3), pp.478-485. ⟨10.1139/cjb-76-3-478⟩ breeding systems trioecy subdioecy Silene acaulis [SDE.BE.BP]Environmental Sciences/Biodiversity and Ecology/domain_sde.be.bp info:eu-repo/semantics/article Journal articles 1998 ftccsdartic https://doi.org/10.1139/cjb-76-3-478 2021-11-21T05:03:53Z International audience Based on morphological characters, Silene acaulis subsp. exscapa and Silene acaulis subsp. cenisia have been previously described as dioecious and trioecious, respectively. Here we examine whether these subspecies are truly dioecious (subsp. exscapa) and trioecious (subsp. cenisia) based on individual seed and pollen production. Nine populations of subsp. cenisia and five populations of subsp. exscapa were studied in the French Alps. The ratio of staminate to female plants within populations did not in general differ from 1:1, the sex ratio expected in dioecious populations. Staminate plants of both subspecies were found to set fruits. In subsp.exscapa, the ratio of fruit production in female versus staminate plants is around 900; in subsp. cenisia, this ratio is around 10. The advantage of female plants in fruit production is not always sufficient to explain their frequencies in natural populations. Staminate plants cannot be divided in two distinct categories: males and hermaphrodites. The two subspecies can be best described as subdioecious, although S. a. exscapa is effectively closer to exhibiting true dioecy than S. a. cenisia. Article in Journal/Newspaper Silene acaulis Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Canadian Journal of Botany 76 3 478 485 |
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Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
topic |
breeding systems trioecy subdioecy Silene acaulis [SDE.BE.BP]Environmental Sciences/Biodiversity and Ecology/domain_sde.be.bp |
spellingShingle |
breeding systems trioecy subdioecy Silene acaulis [SDE.BE.BP]Environmental Sciences/Biodiversity and Ecology/domain_sde.be.bp Maurice, Sandrine Desfeux, Christine Mignot, Agnès Henri, Jean-Pierre Is Silene acaulis (Caryophyllaceae) a trioecious species? Reproductive biology of two subspecies |
topic_facet |
breeding systems trioecy subdioecy Silene acaulis [SDE.BE.BP]Environmental Sciences/Biodiversity and Ecology/domain_sde.be.bp |
description |
International audience Based on morphological characters, Silene acaulis subsp. exscapa and Silene acaulis subsp. cenisia have been previously described as dioecious and trioecious, respectively. Here we examine whether these subspecies are truly dioecious (subsp. exscapa) and trioecious (subsp. cenisia) based on individual seed and pollen production. Nine populations of subsp. cenisia and five populations of subsp. exscapa were studied in the French Alps. The ratio of staminate to female plants within populations did not in general differ from 1:1, the sex ratio expected in dioecious populations. Staminate plants of both subspecies were found to set fruits. In subsp.exscapa, the ratio of fruit production in female versus staminate plants is around 900; in subsp. cenisia, this ratio is around 10. The advantage of female plants in fruit production is not always sufficient to explain their frequencies in natural populations. Staminate plants cannot be divided in two distinct categories: males and hermaphrodites. The two subspecies can be best described as subdioecious, although S. a. exscapa is effectively closer to exhibiting true dioecy than S. a. cenisia. |
author2 |
Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) Ecologie Systématique et Evolution (ESE) Ecole Nationale du Génie Rural, des Eaux et des Forêts (ENGREF)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Maurice, Sandrine Desfeux, Christine Mignot, Agnès Henri, Jean-Pierre |
author_facet |
Maurice, Sandrine Desfeux, Christine Mignot, Agnès Henri, Jean-Pierre |
author_sort |
Maurice, Sandrine |
title |
Is Silene acaulis (Caryophyllaceae) a trioecious species? Reproductive biology of two subspecies |
title_short |
Is Silene acaulis (Caryophyllaceae) a trioecious species? Reproductive biology of two subspecies |
title_full |
Is Silene acaulis (Caryophyllaceae) a trioecious species? Reproductive biology of two subspecies |
title_fullStr |
Is Silene acaulis (Caryophyllaceae) a trioecious species? Reproductive biology of two subspecies |
title_full_unstemmed |
Is Silene acaulis (Caryophyllaceae) a trioecious species? Reproductive biology of two subspecies |
title_sort |
is silene acaulis (caryophyllaceae) a trioecious species? reproductive biology of two subspecies |
publisher |
HAL CCSD |
publishDate |
1998 |
url |
https://hal.archives-ouvertes.fr/halsde-00350052 https://doi.org/10.1139/cjb-76-3-478 |
genre |
Silene acaulis |
genre_facet |
Silene acaulis |
op_source |
ISSN: 0008-4026 EISSN: 1480-3305 Canadian Journal of Botany https://hal.archives-ouvertes.fr/halsde-00350052 Canadian Journal of Botany, National Research Council Canada, 1998, 76 (3), pp.478-485. ⟨10.1139/cjb-76-3-478⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1139/cjb-76-3-478 halsde-00350052 https://hal.archives-ouvertes.fr/halsde-00350052 doi:10.1139/cjb-76-3-478 |
op_doi |
https://doi.org/10.1139/cjb-76-3-478 |
container_title |
Canadian Journal of Botany |
container_volume |
76 |
container_issue |
3 |
container_start_page |
478 |
op_container_end_page |
485 |
_version_ |
1766196942782595072 |