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Inbreeding depression in a rare plant, Scabiosa canescens (Dipsacaceae)

Andersson, Stefan LU and Waldmann, P (2002) In Hereditas 136(3). p.207-211
Abstract
Plants from a population of Scabiosa canescens, a locally rare species with a narrow ecological amplitude, were raised under uniform growth conditions to examine the phenotypic effects of one generation selfing and outcrossing. Particular attention was given to direct components of fitness (seedling biomass, rosette leaf number, head number, flower number per head), but two morphological characters (plant height, flower size) were also considered. Estimates of inbreeding depression (delta), adjusted for maternal effects and lack of balance, were compared and tested for significance using randomization and bootstrap procedures. Inbreeding significantly depressed several characters during both early and late stages of the life cycle, with... (More)
Plants from a population of Scabiosa canescens, a locally rare species with a narrow ecological amplitude, were raised under uniform growth conditions to examine the phenotypic effects of one generation selfing and outcrossing. Particular attention was given to direct components of fitness (seedling biomass, rosette leaf number, head number, flower number per head), but two morphological characters (plant height, flower size) were also considered. Estimates of inbreeding depression (delta), adjusted for maternal effects and lack of balance, were compared and tested for significance using randomization and bootstrap procedures. Inbreeding significantly depressed several characters during both early and late stages of the life cycle, with delta ranging from 0.14 (flower size) to 0.37 (seedling biomass). Based on these and other results, we propose that S. canescens is susceptible to inbreeding and that the genetic basis of inbreeding depression varies across life stages. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Hereditas
volume
136
issue
3
pages
207 - 211
publisher
Wiley-Blackwell
external identifiers
  • wos:000181303800005
  • pmid:12471667
  • scopus:0036759148
ISSN
1601-5223
DOI
10.1034/j.1601-5223.2002.1360305.x
language
English
LU publication?
yes
id
d224dcd7-b7fb-40fa-9f09-2a3747d77e91 (old id 137694)
date added to LUP
2007-07-02 08:07:26
date last changed
2017-01-01 04:57:55
@article{d224dcd7-b7fb-40fa-9f09-2a3747d77e91,
  abstract     = {Plants from a population of Scabiosa canescens, a locally rare species with a narrow ecological amplitude, were raised under uniform growth conditions to examine the phenotypic effects of one generation selfing and outcrossing. Particular attention was given to direct components of fitness (seedling biomass, rosette leaf number, head number, flower number per head), but two morphological characters (plant height, flower size) were also considered. Estimates of inbreeding depression (delta), adjusted for maternal effects and lack of balance, were compared and tested for significance using randomization and bootstrap procedures. Inbreeding significantly depressed several characters during both early and late stages of the life cycle, with delta ranging from 0.14 (flower size) to 0.37 (seedling biomass). Based on these and other results, we propose that S. canescens is susceptible to inbreeding and that the genetic basis of inbreeding depression varies across life stages.},
  author       = {Andersson, Stefan and Waldmann, P},
  issn         = {1601-5223},
  language     = {eng},
  number       = {3},
  pages        = {207--211},
  publisher    = {Wiley-Blackwell},
  series       = {Hereditas},
  title        = {Inbreeding depression in a rare plant, Scabiosa canescens (Dipsacaceae)},
  url          = {http://dx.doi.org/10.1034/j.1601-5223.2002.1360305.x},
  volume       = {136},
  year         = {2002},
}