Sexual antagonism in the pistil varies among populations of a hermaphroditic mixed-mating plant.
(2015) In Journal of evolutionary biology 28(7). p.1321-1334- Abstract
- Sexual conflicts and their evolutionary outcomes may be influenced by population-specific features such as mating system and ecological context; however, very few studies have investigated the link between sexual conflict and mating system. The self-compatible, mixed-mating hermaphrodite Collinsia heterophylla (Plantaginaceae) is thought to exhibit a sexual conflict over timing of stigma receptivity. This conflict involves 1) delayed stigma receptivity, which intensifies pollen competition, and 2) early fertilization forced by pollen, which reduces seed set. We investigated the potential for the conflict to occur under field conditions and performed greenhouse crosses within eight populations to assess its consistency across populations.... (More)
- Sexual conflicts and their evolutionary outcomes may be influenced by population-specific features such as mating system and ecological context; however, very few studies have investigated the link between sexual conflict and mating system. The self-compatible, mixed-mating hermaphrodite Collinsia heterophylla (Plantaginaceae) is thought to exhibit a sexual conflict over timing of stigma receptivity. This conflict involves 1) delayed stigma receptivity, which intensifies pollen competition, and 2) early fertilization forced by pollen, which reduces seed set. We investigated the potential for the conflict to occur under field conditions and performed greenhouse crosses within eight populations to assess its consistency across populations. Flowers were visited, and produced seeds after pollination, at all developmental stages, suggesting that the conflict can be of significance under natural conditions. In the greenhouse, early pollination imposed costs in all populations. Overall, the timing of first seed set was most strongly affected by the maternal parent, denoting stronger female than male ability to influence onset of stigma receptivity. Crosses also revealed a negative relationship between donor- and recipient-related onset of receptivity within individuals, a novel result hinting at trade-offs in sex-allocation or a history of antagonistic selection. Neither timing of stigma receptivity, timing of first seed set, nor pollen competitive ability covaried with population outcrossing rate. In conclusion, these results indicate that sexually antagonistic selection may be present in varying degrees in different populations of C. heterophylla, but this variation does not appear to be directly related to mating system variation. This article is protected by copyright. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/5442197
- author
- Hersh, Evan ; Madjidian, Josefin LU ; Andersson, Stefan LU ; Strandh, Maria LU ; Armbruster, W Scott and Lankinen, Åsa LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of evolutionary biology
- volume
- 28
- issue
- 7
- pages
- 1321 - 1334
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- pmid:26011732
- wos:000357584900003
- scopus:84936174412
- pmid:26011732
- ISSN
- 1420-9101
- DOI
- 10.1111/jeb.12656
- language
- English
- LU publication?
- yes
- id
- dfd78749-901f-4da0-b3bb-20238168b5a7 (old id 5442197)
- date added to LUP
- 2016-04-01 10:28:34
- date last changed
- 2022-04-27 22:30:44
@article{dfd78749-901f-4da0-b3bb-20238168b5a7,
abstract = {{Sexual conflicts and their evolutionary outcomes may be influenced by population-specific features such as mating system and ecological context; however, very few studies have investigated the link between sexual conflict and mating system. The self-compatible, mixed-mating hermaphrodite Collinsia heterophylla (Plantaginaceae) is thought to exhibit a sexual conflict over timing of stigma receptivity. This conflict involves 1) delayed stigma receptivity, which intensifies pollen competition, and 2) early fertilization forced by pollen, which reduces seed set. We investigated the potential for the conflict to occur under field conditions and performed greenhouse crosses within eight populations to assess its consistency across populations. Flowers were visited, and produced seeds after pollination, at all developmental stages, suggesting that the conflict can be of significance under natural conditions. In the greenhouse, early pollination imposed costs in all populations. Overall, the timing of first seed set was most strongly affected by the maternal parent, denoting stronger female than male ability to influence onset of stigma receptivity. Crosses also revealed a negative relationship between donor- and recipient-related onset of receptivity within individuals, a novel result hinting at trade-offs in sex-allocation or a history of antagonistic selection. Neither timing of stigma receptivity, timing of first seed set, nor pollen competitive ability covaried with population outcrossing rate. In conclusion, these results indicate that sexually antagonistic selection may be present in varying degrees in different populations of C. heterophylla, but this variation does not appear to be directly related to mating system variation. This article is protected by copyright. All rights reserved.}},
author = {{Hersh, Evan and Madjidian, Josefin and Andersson, Stefan and Strandh, Maria and Armbruster, W Scott and Lankinen, Åsa}},
issn = {{1420-9101}},
language = {{eng}},
number = {{7}},
pages = {{1321--1334}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Journal of evolutionary biology}},
title = {{Sexual antagonism in the pistil varies among populations of a hermaphroditic mixed-mating plant.}},
url = {{http://dx.doi.org/10.1111/jeb.12656}},
doi = {{10.1111/jeb.12656}},
volume = {{28}},
year = {{2015}},
}