Condition and reproductive investment in the western mosquitofish (Gambusia affinis) : little evidence for condition-dependent sex-biased investment
(2016) In Biological Journal of the Linnean Society 119(2). p.430-435- Abstract
In sexually reproducing species, resources may theoretically be distributed with bias to the production of male or female offspring in response to the condition of the mother, commonly recognized as sex allocation. Using a recently characterized sex-specific molecular marker, we tested for maternal sex allocation (i.e. maternal primary sex ratio bias and sex-specific offspring investment) in captive laboratory-bred western mosquitofish (Gambusia affinis) at early stages of offspring development. We found no statistical evidence to support sex allocation in G. affinis, based on maternal condition. In addition, we found little evidence for correlations between maternal condition and investment in the condition (mass) of individual... (More)
In sexually reproducing species, resources may theoretically be distributed with bias to the production of male or female offspring in response to the condition of the mother, commonly recognized as sex allocation. Using a recently characterized sex-specific molecular marker, we tested for maternal sex allocation (i.e. maternal primary sex ratio bias and sex-specific offspring investment) in captive laboratory-bred western mosquitofish (Gambusia affinis) at early stages of offspring development. We found no statistical evidence to support sex allocation in G. affinis, based on maternal condition. In addition, we found little evidence for correlations between maternal condition and investment in the condition (mass) of individual offspring (of one sex or the other), although we did find that larger mothers tended to have higher fecundity.
(Less)
- author
- Senior, Alistair M. ; Lim, Jiahui N. ; Adolfsson, Sofia LU ; Lamatsch, Dunja K. and Nakagawa, Shinichi
- organization
- publishing date
- 2016-10-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- fecundity, life-history trade-off, maternal condition, maternal investment, offspring size, Poeciliid, reproductive correlations, sex allocation, sex ratio, Trivers–Willard
- in
- Biological Journal of the Linnean Society
- volume
- 119
- issue
- 2
- pages
- 6 pages
- publisher
- Oxford University Press
- external identifiers
-
- scopus:84988622188
- wos:000386919000014
- ISSN
- 0024-4066
- DOI
- 10.1111/bij.12813
- language
- English
- LU publication?
- yes
- id
- a2d34dc8-6052-4468-93d4-1a818b054843
- date added to LUP
- 2016-10-26 07:25:24
- date last changed
- 2024-03-07 14:30:58
@article{a2d34dc8-6052-4468-93d4-1a818b054843,
abstract = {{<p>In sexually reproducing species, resources may theoretically be distributed with bias to the production of male or female offspring in response to the condition of the mother, commonly recognized as sex allocation. Using a recently characterized sex-specific molecular marker, we tested for maternal sex allocation (i.e. maternal primary sex ratio bias and sex-specific offspring investment) in captive laboratory-bred western mosquitofish (Gambusia affinis) at early stages of offspring development. We found no statistical evidence to support sex allocation in G. affinis, based on maternal condition. In addition, we found little evidence for correlations between maternal condition and investment in the condition (mass) of individual offspring (of one sex or the other), although we did find that larger mothers tended to have higher fecundity.</p>}},
author = {{Senior, Alistair M. and Lim, Jiahui N. and Adolfsson, Sofia and Lamatsch, Dunja K. and Nakagawa, Shinichi}},
issn = {{0024-4066}},
keywords = {{fecundity; life-history trade-off; maternal condition; maternal investment; offspring size; Poeciliid; reproductive correlations; sex allocation; sex ratio; Trivers–Willard}},
language = {{eng}},
month = {{10}},
number = {{2}},
pages = {{430--435}},
publisher = {{Oxford University Press}},
series = {{Biological Journal of the Linnean Society}},
title = {{Condition and reproductive investment in the western mosquitofish (Gambusia affinis) : little evidence for condition-dependent sex-biased investment}},
url = {{http://dx.doi.org/10.1111/bij.12813}},
doi = {{10.1111/bij.12813}},
volume = {{119}},
year = {{2016}},
}