Evolution of apetaly in the cosmopolitan genus Stellaria
Premise Apetaly is widespread across distantly related lineages of flowering plants and is associated with abiotic (or self‐) pollination. It is particularly prevalent in the carnation family, and the cosmopolitan genus Stellaria contains many lineages that are hypothesized to have lost petals from...
Published in: | American Journal of Botany |
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crwiley:10.1002/ajb2.1650 2024-09-30T14:31:24+00:00 Evolution of apetaly in the cosmopolitan genus Stellaria Sharples, Mathew T. Bentz, Philip C. Manzitto‐Tripp, Erin A. Botanical Society of America National Science Foundation 2021 http://dx.doi.org/10.1002/ajb2.1650 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ajb2.1650 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ajb2.1650 https://bsapubs.onlinelibrary.wiley.com/doi/am-pdf/10.1002/ajb2.1650 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor American Journal of Botany volume 108, issue 5, page 869-882 ISSN 0002-9122 1537-2197 journal-article 2021 crwiley https://doi.org/10.1002/ajb2.1650 2024-09-03T04:25:52Z Premise Apetaly is widespread across distantly related lineages of flowering plants and is associated with abiotic (or self‐) pollination. It is particularly prevalent in the carnation family, and the cosmopolitan genus Stellaria contains many lineages that are hypothesized to have lost petals from showy petalous ancestors. But the pollination biology of apetalous species of Stellaria remains unclear. Methods Using a substantial species‐level sampling (~92% of known taxonomic diversity), we describe the pattern of petal evolution within Stellaria using ancestral character state reconstructions. To help shed light on the reproductive biology of apetalous Stellaria , we conducted a field experiment at an alpine tundra site in the southern Rocky Mountains to test whether an apetalous species ( S. irrigua ) exhibits higher levels of selfing than a sympatric, showy petalous congener ( S. longipes ). Results Analyses indicated that the ancestor of Stellaria was likely showy petalous and that repeated, parallel reductions of petals occurred in clades across much of the world, with uncommon reversal back to showy petals. Field experiments supported high rates of selfing in the apetalous species and high rates of outcrossing in the petalous species. Conclusions Petal loss is rampant across major clades of Stellaria and is potentially linked with self‐pollination worldwide. Self‐pollination occurs within the buds in S. irrigua , and high propensities for this and other forms of selfing known in many other taxa of arctic‐alpine habitats may reflect erratic availability of pollinators. Article in Journal/Newspaper Arctic Tundra Wiley Online Library Arctic American Journal of Botany 108 5 869 882 |
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Wiley Online Library |
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English |
description |
Premise Apetaly is widespread across distantly related lineages of flowering plants and is associated with abiotic (or self‐) pollination. It is particularly prevalent in the carnation family, and the cosmopolitan genus Stellaria contains many lineages that are hypothesized to have lost petals from showy petalous ancestors. But the pollination biology of apetalous species of Stellaria remains unclear. Methods Using a substantial species‐level sampling (~92% of known taxonomic diversity), we describe the pattern of petal evolution within Stellaria using ancestral character state reconstructions. To help shed light on the reproductive biology of apetalous Stellaria , we conducted a field experiment at an alpine tundra site in the southern Rocky Mountains to test whether an apetalous species ( S. irrigua ) exhibits higher levels of selfing than a sympatric, showy petalous congener ( S. longipes ). Results Analyses indicated that the ancestor of Stellaria was likely showy petalous and that repeated, parallel reductions of petals occurred in clades across much of the world, with uncommon reversal back to showy petals. Field experiments supported high rates of selfing in the apetalous species and high rates of outcrossing in the petalous species. Conclusions Petal loss is rampant across major clades of Stellaria and is potentially linked with self‐pollination worldwide. Self‐pollination occurs within the buds in S. irrigua , and high propensities for this and other forms of selfing known in many other taxa of arctic‐alpine habitats may reflect erratic availability of pollinators. |
author2 |
Botanical Society of America National Science Foundation |
format |
Article in Journal/Newspaper |
author |
Sharples, Mathew T. Bentz, Philip C. Manzitto‐Tripp, Erin A. |
spellingShingle |
Sharples, Mathew T. Bentz, Philip C. Manzitto‐Tripp, Erin A. Evolution of apetaly in the cosmopolitan genus Stellaria |
author_facet |
Sharples, Mathew T. Bentz, Philip C. Manzitto‐Tripp, Erin A. |
author_sort |
Sharples, Mathew T. |
title |
Evolution of apetaly in the cosmopolitan genus Stellaria |
title_short |
Evolution of apetaly in the cosmopolitan genus Stellaria |
title_full |
Evolution of apetaly in the cosmopolitan genus Stellaria |
title_fullStr |
Evolution of apetaly in the cosmopolitan genus Stellaria |
title_full_unstemmed |
Evolution of apetaly in the cosmopolitan genus Stellaria |
title_sort |
evolution of apetaly in the cosmopolitan genus stellaria |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1002/ajb2.1650 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ajb2.1650 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ajb2.1650 https://bsapubs.onlinelibrary.wiley.com/doi/am-pdf/10.1002/ajb2.1650 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
op_source |
American Journal of Botany volume 108, issue 5, page 869-882 ISSN 0002-9122 1537-2197 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ajb2.1650 |
container_title |
American Journal of Botany |
container_volume |
108 |
container_issue |
5 |
container_start_page |
869 |
op_container_end_page |
882 |
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1811635974860439552 |