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Phenotypic and genetic variation in emergence and development time of a trimorphic damselfly

Abbott, Jessica LU and Svensson, Erik LU (2005) In Journal of Evolutionary Biology 18(6). p.1464-1470
Abstract
Although colour polymorphisms in adult organisms of many taxa are often adaptive in the context of sexual selection or predation, genetic correlations between colour and other phenotypic traits expressed early in ontogeny could also play an important role in polymorphic systems. We studied phenotypic and genetic variation in development time among female colour morphs in the polymorphic damselfly Ischnura elegans in the field and by raising larvae in a common laboratory environment. In the field, the three different female morphs emerged at different times. Among laboratory-raised families, we found evidence of a significant correlation between maternal morph and larval development time in both sexes. This suggests that the phenotypic... (More)
Although colour polymorphisms in adult organisms of many taxa are often adaptive in the context of sexual selection or predation, genetic correlations between colour and other phenotypic traits expressed early in ontogeny could also play an important role in polymorphic systems. We studied phenotypic and genetic variation in development time among female colour morphs in the polymorphic damselfly Ischnura elegans in the field and by raising larvae in a common laboratory environment. In the field, the three different female morphs emerged at different times. Among laboratory-raised families, we found evidence of a significant correlation between maternal morph and larval development time in both sexes. This suggests that the phenotypic correlation between morph and emergence time in the field has a parallel in a genetic correlation between maternal colour and offspring development time. Maternal colour morph frequencies could thus potentially change as correlated responses to selection on larval emergence dates. The similar genetic correlation in male offspring suggests that sex-limitation in this system is incomplete, which may lead to an ontogenetic sexual conflict between selection for early male emergence (protandry) and emergence times associated with maternal morph. (Less)
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organization
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type
Contribution to journal
publication status
published
subject
in
Journal of Evolutionary Biology
volume
18
issue
6
pages
1464 - 1470
publisher
John Wiley & Sons
external identifiers
  • pmid:16313459
  • wos:000233146000010
  • scopus:28444455221
ISSN
1420-9101
DOI
10.1111/j.1420-9101.2005.01019.x
language
English
LU publication?
yes
id
6b77f891-8fbb-46e3-a405-f267df40d296 (old id 149121)
alternative location
http://dx.doi.org/10.1111/j.1420-9101.2005.01019.x
date added to LUP
2007-06-21 13:44:29
date last changed
2017-10-22 03:45:50
@article{6b77f891-8fbb-46e3-a405-f267df40d296,
  abstract     = {Although colour polymorphisms in adult organisms of many taxa are often adaptive in the context of sexual selection or predation, genetic correlations between colour and other phenotypic traits expressed early in ontogeny could also play an important role in polymorphic systems. We studied phenotypic and genetic variation in development time among female colour morphs in the polymorphic damselfly Ischnura elegans in the field and by raising larvae in a common laboratory environment. In the field, the three different female morphs emerged at different times. Among laboratory-raised families, we found evidence of a significant correlation between maternal morph and larval development time in both sexes. This suggests that the phenotypic correlation between morph and emergence time in the field has a parallel in a genetic correlation between maternal colour and offspring development time. Maternal colour morph frequencies could thus potentially change as correlated responses to selection on larval emergence dates. The similar genetic correlation in male offspring suggests that sex-limitation in this system is incomplete, which may lead to an ontogenetic sexual conflict between selection for early male emergence (protandry) and emergence times associated with maternal morph.},
  author       = {Abbott, Jessica and Svensson, Erik},
  issn         = {1420-9101},
  language     = {eng},
  number       = {6},
  pages        = {1464--1470},
  publisher    = {John Wiley & Sons},
  series       = {Journal of Evolutionary Biology},
  title        = {Phenotypic and genetic variation in emergence and development time of a trimorphic damselfly},
  url          = {http://dx.doi.org/10.1111/j.1420-9101.2005.01019.x},
  volume       = {18},
  year         = {2005},
}