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Heritable variation in maternal yolk hormone transfer in a wild bird population.

Tschirren, Barbara LU ; Sendecka, Joanna; Groothuis, Ton G G; Gustafsson, Lars and Doligez, Blandine (2009) In American Naturalist 174(4). p.557-564
Abstract
Differential reproductive investment by the mother can critically influence offspring development and phenotype, and strong selection is therefore expected to act on such maternal effects. Although a genetic basis is a prerequisite for phenotypic traits to respond to selection and thus to evolve, we still know very little about the extent of heritable variation in maternal effects in natural populations. Here, we present the first estimates of intrafemale repeatability across breeding seasons and estimates of heritability of hormone-mediated maternal effects in a wild population of collared flycatchers (Ficedula albicollis). We found that maternal yolk testosterone (T) concentrations, yolk mass, and egg mass were moderately to highly... (More)
Differential reproductive investment by the mother can critically influence offspring development and phenotype, and strong selection is therefore expected to act on such maternal effects. Although a genetic basis is a prerequisite for phenotypic traits to respond to selection and thus to evolve, we still know very little about the extent of heritable variation in maternal effects in natural populations. Here, we present the first estimates of intrafemale repeatability across breeding seasons and estimates of heritability of hormone-mediated maternal effects in a wild population of collared flycatchers (Ficedula albicollis). We found that maternal yolk testosterone (T) concentrations, yolk mass, and egg mass were moderately to highly repeatable within females across years, whereas intrafemale consistency of maternal yolk androstenedione (A4) deposition was low yet statistically significant. Furthermore, maternal yolk T transfer, yolk mass, and egg mass were significantly heritable, whereas yolk A4 transfer was not. These results strongly suggest that two major maternal yolk androgens are differentially regulated by genes and the environment. Selection on heritable variation in maternal yolk T deposition has the potential to shape the rate and direction of phenotypic change in offspring traits and can thereby accelerate or impede the response to selection in natural populations. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
American Naturalist
volume
174
issue
4
pages
557 - 564
publisher
University of Chicago Press
external identifiers
  • wos:000269824800013
  • pmid:19737108
  • scopus:70349423585
ISSN
0003-0147
DOI
10.1086/605379
language
English
LU publication?
yes
id
3fb41a14-1e16-43cd-a658-c2c17129e5f3 (old id 1483642)
date added to LUP
2009-10-08 12:28:11
date last changed
2017-01-01 05:16:08
@article{3fb41a14-1e16-43cd-a658-c2c17129e5f3,
  abstract     = {Differential reproductive investment by the mother can critically influence offspring development and phenotype, and strong selection is therefore expected to act on such maternal effects. Although a genetic basis is a prerequisite for phenotypic traits to respond to selection and thus to evolve, we still know very little about the extent of heritable variation in maternal effects in natural populations. Here, we present the first estimates of intrafemale repeatability across breeding seasons and estimates of heritability of hormone-mediated maternal effects in a wild population of collared flycatchers (Ficedula albicollis). We found that maternal yolk testosterone (T) concentrations, yolk mass, and egg mass were moderately to highly repeatable within females across years, whereas intrafemale consistency of maternal yolk androstenedione (A4) deposition was low yet statistically significant. Furthermore, maternal yolk T transfer, yolk mass, and egg mass were significantly heritable, whereas yolk A4 transfer was not. These results strongly suggest that two major maternal yolk androgens are differentially regulated by genes and the environment. Selection on heritable variation in maternal yolk T deposition has the potential to shape the rate and direction of phenotypic change in offspring traits and can thereby accelerate or impede the response to selection in natural populations.},
  author       = {Tschirren, Barbara and Sendecka, Joanna and Groothuis, Ton G G and Gustafsson, Lars and Doligez, Blandine},
  issn         = {0003-0147},
  language     = {eng},
  number       = {4},
  pages        = {557--564},
  publisher    = {University of Chicago Press},
  series       = {American Naturalist},
  title        = {Heritable variation in maternal yolk hormone transfer in a wild bird population.},
  url          = {http://dx.doi.org/10.1086/605379},
  volume       = {174},
  year         = {2009},
}