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Consistent sex ratio bias of individual female dragon lizards

Uller, Tobias LU ; Mott, Beth ; Odierna, Gaetano and Olsson, Mats (2006) In Biology letters 2(4). p.569-572
Abstract
Sex ratio evolution relies on genetic variation in either the phenotypic traits that influence sex ratios or sex-determining mechanisms. However, consistent variation among females in offspring sex ratio is rarely investigated. Here, we show that female painted dragons (Ctenophorus pictus) have highly repeatable sex ratios among clutches within years. A consistent effect of female identity could represent stable phenotypic differences among females or genetic variation in sex-determining mechanisms. Sex ratios were not correlated with female size, body condition or coloration. Furthermore, sex ratios were not influenced by incubation temperature. However, the variation among females resulted in female-biased mean population sex ratios at... (More)
Sex ratio evolution relies on genetic variation in either the phenotypic traits that influence sex ratios or sex-determining mechanisms. However, consistent variation among females in offspring sex ratio is rarely investigated. Here, we show that female painted dragons (Ctenophorus pictus) have highly repeatable sex ratios among clutches within years. A consistent effect of female identity could represent stable phenotypic differences among females or genetic variation in sex-determining mechanisms. Sex ratios were not correlated with female size, body condition or coloration. Furthermore, sex ratios were not influenced by incubation temperature. However, the variation among females resulted in female-biased mean population sex ratios at hatching both within and among years. (Less)
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author
; ; and
publishing date
type
Contribution to journal
publication status
published
subject
in
Biology letters
volume
2
issue
4
pages
569 - 572
publisher
Royal Society Publishing
external identifiers
  • scopus:33845577029
ISSN
1744-9561
DOI
10.1098/rsbl.2006.0526
language
English
LU publication?
no
id
71fddcb4-caf7-4201-a49c-aa1122032fd1 (old id 4731491)
date added to LUP
2016-04-01 11:36:00
date last changed
2022-04-05 02:02:32
@article{71fddcb4-caf7-4201-a49c-aa1122032fd1,
  abstract     = {{Sex ratio evolution relies on genetic variation in either the phenotypic traits that influence sex ratios or sex-determining mechanisms. However, consistent variation among females in offspring sex ratio is rarely investigated. Here, we show that female painted dragons (Ctenophorus pictus) have highly repeatable sex ratios among clutches within years. A consistent effect of female identity could represent stable phenotypic differences among females or genetic variation in sex-determining mechanisms. Sex ratios were not correlated with female size, body condition or coloration. Furthermore, sex ratios were not influenced by incubation temperature. However, the variation among females resulted in female-biased mean population sex ratios at hatching both within and among years.}},
  author       = {{Uller, Tobias and Mott, Beth and Odierna, Gaetano and Olsson, Mats}},
  issn         = {{1744-9561}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{569--572}},
  publisher    = {{Royal Society Publishing}},
  series       = {{Biology letters}},
  title        = {{Consistent sex ratio bias of individual female dragon lizards}},
  url          = {{http://dx.doi.org/10.1098/rsbl.2006.0526}},
  doi          = {{10.1098/rsbl.2006.0526}},
  volume       = {{2}},
  year         = {{2006}},
}