Pollinator and nonpollinator selection on ray morphology in Leucanthemum vulgare (oxeye daisy, Asteraceae)
(2008) In American Journal of Botany 95(9). p.1072-1078- Abstract
- Despite evidence that both pollinators and nonpollinator agents of selection can shape the evolution of floral characters, there have been few attempts to compare the strengths and directions of selection from pollinators and other agents in the same study system. In this investigation of Leucanthemum vulgare, a self-incompatible composite known for its conspicuous white rays, I obtained data from a ray removal experiment in the field and from a segregating F2 population in an experimental garden to assess the role of pollinator and nonpollinator selection as stabilizing factors on floral evolution in this species. Removal of all rays reduced the pollination success of heads by 31–35%, but did not significantly affect the level of... (More)
- Despite evidence that both pollinators and nonpollinator agents of selection can shape the evolution of floral characters, there have been few attempts to compare the strengths and directions of selection from pollinators and other agents in the same study system. In this investigation of Leucanthemum vulgare, a self-incompatible composite known for its conspicuous white rays, I obtained data from a ray removal experiment in the field and from a segregating F2 population in an experimental garden to assess the role of pollinator and nonpollinator selection as stabilizing factors on floral evolution in this species. Removal of all rays reduced the pollination success of heads by 31–35%, but did not significantly affect the level of infestation by larvae of the fly Tephritis neesii. Data from F2 plants indicated a potential for indirect selection on ray morphology, mediated through links between ray morphology and measures of vegetative size and plant vigor. The results of this study show that individuals of the normal, rayed phenotype have a clear selective advantage, in terms of both pollinator attraction and general plant vigor. Thus, there were no conflicting selection pressures between the pollinators and the other selective agents considered in this study. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1397736
- author
- Andersson, Stefan LU
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Asteraceae • floral evolution • Leucanthemum vulgare • pollination • selection
- in
- American Journal of Botany
- volume
- 95
- issue
- 9
- pages
- 1072 - 1078
- publisher
- Botanical Society of America
- external identifiers
-
- wos:000259172300003
- scopus:51349103167
- pmid:21632427
- ISSN
- 0002-9122
- DOI
- 10.3732/ajb.0800087
- language
- English
- LU publication?
- yes
- id
- f61a88bb-7650-49c5-b6d4-d9cffc6f0118 (old id 1397736)
- date added to LUP
- 2016-04-01 14:49:08
- date last changed
- 2022-04-06 20:40:39
@article{f61a88bb-7650-49c5-b6d4-d9cffc6f0118,
abstract = {{Despite evidence that both pollinators and nonpollinator agents of selection can shape the evolution of floral characters, there have been few attempts to compare the strengths and directions of selection from pollinators and other agents in the same study system. In this investigation of Leucanthemum vulgare, a self-incompatible composite known for its conspicuous white rays, I obtained data from a ray removal experiment in the field and from a segregating F2 population in an experimental garden to assess the role of pollinator and nonpollinator selection as stabilizing factors on floral evolution in this species. Removal of all rays reduced the pollination success of heads by 31–35%, but did not significantly affect the level of infestation by larvae of the fly Tephritis neesii. Data from F2 plants indicated a potential for indirect selection on ray morphology, mediated through links between ray morphology and measures of vegetative size and plant vigor. The results of this study show that individuals of the normal, rayed phenotype have a clear selective advantage, in terms of both pollinator attraction and general plant vigor. Thus, there were no conflicting selection pressures between the pollinators and the other selective agents considered in this study.}},
author = {{Andersson, Stefan}},
issn = {{0002-9122}},
keywords = {{Asteraceae • floral evolution • Leucanthemum vulgare • pollination • selection}},
language = {{eng}},
number = {{9}},
pages = {{1072--1078}},
publisher = {{Botanical Society of America}},
series = {{American Journal of Botany}},
title = {{Pollinator and nonpollinator selection on ray morphology in Leucanthemum vulgare (oxeye daisy, Asteraceae)}},
url = {{http://dx.doi.org/10.3732/ajb.0800087}},
doi = {{10.3732/ajb.0800087}},
volume = {{95}},
year = {{2008}},
}