Maternal sex and mate relatedness affect offspring quality in the gynodioecious Silene acaulis
Abstract In gynodioecious species, females sacrifice fitness by not producing pollen, and hence must have a fitness advantage over hermaphrodites. Because females are obligately outcrossed, they may derive a fitness advantage by avoiding selfing and inbreeding depression. However, both sexes are cap...
Published in: | Journal of Evolutionary Biology |
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2006
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croxfordunivpr:10.1111/j.1420-9101.2006.01101.x 2024-03-03T08:48:46+00:00 Maternal sex and mate relatedness affect offspring quality in the gynodioecious Silene acaulis Keller, S. R. Schwaegerle, K. E. 2006 http://dx.doi.org/10.1111/j.1420-9101.2006.01101.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1420-9101.2006.01101.x https://academic.oup.com/jeb/article-pdf/19/4/1128/54436473/jevbio1128.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Evolutionary Biology volume 19, issue 4, page 1128-1138 ISSN 1010-061X 1420-9101 Ecology, Evolution, Behavior and Systematics journal-article 2006 croxfordunivpr https://doi.org/10.1111/j.1420-9101.2006.01101.x 2024-02-05T10:32:03Z Abstract In gynodioecious species, females sacrifice fitness by not producing pollen, and hence must have a fitness advantage over hermaphrodites. Because females are obligately outcrossed, they may derive a fitness advantage by avoiding selfing and inbreeding depression. However, both sexes are capable of biparental inbreeding, and there are currently few estimates of the independent effects of maternal sex and multiple levels of inbreeding on female advantage. To test these hypotheses, females and hermaphrodites from six Alaskan populations of Silene acaulis were crossed with pollen from self (hermaphrodites only), a sibling, a random plant within the same population, and a plant from a different population. Germination, survivorship and early growth revealed inbreeding depression for selfs and higher germination but reduced growth in sib-crosses, relative to outcrosses. Independent of mate relatedness, females germinated more seeds that grew faster than offspring from hermaphrodites. This indicates that inbreeding depression as well as maternal sex can influence breeding system evolution. The effect of maternal sex may be explained by higher performance of female genotypes and a greater abundance of female genotypes among the offspring of female mothers. Article in Journal/Newspaper Silene acaulis Oxford University Press Journal of Evolutionary Biology 19 5 1612 1619 |
institution |
Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology, Evolution, Behavior and Systematics Keller, S. R. Schwaegerle, K. E. Maternal sex and mate relatedness affect offspring quality in the gynodioecious Silene acaulis |
topic_facet |
Ecology, Evolution, Behavior and Systematics |
description |
Abstract In gynodioecious species, females sacrifice fitness by not producing pollen, and hence must have a fitness advantage over hermaphrodites. Because females are obligately outcrossed, they may derive a fitness advantage by avoiding selfing and inbreeding depression. However, both sexes are capable of biparental inbreeding, and there are currently few estimates of the independent effects of maternal sex and multiple levels of inbreeding on female advantage. To test these hypotheses, females and hermaphrodites from six Alaskan populations of Silene acaulis were crossed with pollen from self (hermaphrodites only), a sibling, a random plant within the same population, and a plant from a different population. Germination, survivorship and early growth revealed inbreeding depression for selfs and higher germination but reduced growth in sib-crosses, relative to outcrosses. Independent of mate relatedness, females germinated more seeds that grew faster than offspring from hermaphrodites. This indicates that inbreeding depression as well as maternal sex can influence breeding system evolution. The effect of maternal sex may be explained by higher performance of female genotypes and a greater abundance of female genotypes among the offspring of female mothers. |
format |
Article in Journal/Newspaper |
author |
Keller, S. R. Schwaegerle, K. E. |
author_facet |
Keller, S. R. Schwaegerle, K. E. |
author_sort |
Keller, S. R. |
title |
Maternal sex and mate relatedness affect offspring quality in the gynodioecious Silene acaulis |
title_short |
Maternal sex and mate relatedness affect offspring quality in the gynodioecious Silene acaulis |
title_full |
Maternal sex and mate relatedness affect offspring quality in the gynodioecious Silene acaulis |
title_fullStr |
Maternal sex and mate relatedness affect offspring quality in the gynodioecious Silene acaulis |
title_full_unstemmed |
Maternal sex and mate relatedness affect offspring quality in the gynodioecious Silene acaulis |
title_sort |
maternal sex and mate relatedness affect offspring quality in the gynodioecious silene acaulis |
publisher |
Oxford University Press (OUP) |
publishDate |
2006 |
url |
http://dx.doi.org/10.1111/j.1420-9101.2006.01101.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1420-9101.2006.01101.x https://academic.oup.com/jeb/article-pdf/19/4/1128/54436473/jevbio1128.pdf |
genre |
Silene acaulis |
genre_facet |
Silene acaulis |
op_source |
Journal of Evolutionary Biology volume 19, issue 4, page 1128-1138 ISSN 1010-061X 1420-9101 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1420-9101.2006.01101.x |
container_title |
Journal of Evolutionary Biology |
container_volume |
19 |
container_issue |
5 |
container_start_page |
1612 |
op_container_end_page |
1619 |
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1792505776784277504 |