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In vitro pollen competitive ability in Viola tricolor: temperature and pollen donor effects

Lankinen, Åsa LU (2001) In Oecologia 128(4). p.492-498
Abstract
In this study on Viola tricolor pollen, the competitive ability of 16 pollen donors originating from a wild population was analysed in a set of greenhouse and germination temperatures. The aim was to examine the consistency in donor pollen performance across temperatures and to see whether variation in performance was random or due to individual differences in the plastic response to temperature. Pollen tube growth rate in vitro was investigated in two greenhouse temperatures (on the day pollen was collected) and in four germination temperatures. In addition, pollen tube growth rate was assessed in vivo (in one temperature) to examine the relationship between in vivo and in vitro growth. A temperature difference of 5 K - corresponding to... (More)
In this study on Viola tricolor pollen, the competitive ability of 16 pollen donors originating from a wild population was analysed in a set of greenhouse and germination temperatures. The aim was to examine the consistency in donor pollen performance across temperatures and to see whether variation in performance was random or due to individual differences in the plastic response to temperature. Pollen tube growth rate in vitro was investigated in two greenhouse temperatures (on the day pollen was collected) and in four germination temperatures. In addition, pollen tube growth rate was assessed in vivo (in one temperature) to examine the relationship between in vivo and in vitro growth. A temperature difference of 5 K - corresponding to natural variation in time and space detected in the field - affected pollen tube growth rate. For both temperature components, significant pollen donor by temperature interactions were found and rank order of pollen donors changed across treatments. Although pollen competitive ability in violets was strongly influenced by both temperature components, the occurrence of pollen donor by temperature interactions indicates that donor siring ability varies with temperature. This, in turn, may suggest a means to maintain pollen competitive ability despite selection for this trait. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Oecologia
volume
128
issue
4
pages
492 - 498
publisher
Springer
external identifiers
  • scopus:0034877706
ISSN
1432-1939
DOI
10.1007/s004420100681
language
English
LU publication?
yes
id
1d787e5e-96e5-4730-90d2-79e6aee2e9c1 (old id 147640)
date added to LUP
2007-07-03 13:28:57
date last changed
2018-02-18 03:43:54
@article{1d787e5e-96e5-4730-90d2-79e6aee2e9c1,
  abstract     = {In this study on Viola tricolor pollen, the competitive ability of 16 pollen donors originating from a wild population was analysed in a set of greenhouse and germination temperatures. The aim was to examine the consistency in donor pollen performance across temperatures and to see whether variation in performance was random or due to individual differences in the plastic response to temperature. Pollen tube growth rate in vitro was investigated in two greenhouse temperatures (on the day pollen was collected) and in four germination temperatures. In addition, pollen tube growth rate was assessed in vivo (in one temperature) to examine the relationship between in vivo and in vitro growth. A temperature difference of 5 K - corresponding to natural variation in time and space detected in the field - affected pollen tube growth rate. For both temperature components, significant pollen donor by temperature interactions were found and rank order of pollen donors changed across treatments. Although pollen competitive ability in violets was strongly influenced by both temperature components, the occurrence of pollen donor by temperature interactions indicates that donor siring ability varies with temperature. This, in turn, may suggest a means to maintain pollen competitive ability despite selection for this trait.},
  author       = {Lankinen, Åsa},
  issn         = {1432-1939},
  language     = {eng},
  number       = {4},
  pages        = {492--498},
  publisher    = {Springer},
  series       = {Oecologia},
  title        = {In vitro pollen competitive ability in Viola tricolor: temperature and pollen donor effects},
  url          = {http://dx.doi.org/10.1007/s004420100681},
  volume       = {128},
  year         = {2001},
}