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| Content Provider | Springer Nature Link |
|---|---|
| Author | Pasonen, H L. Käpylä, M. Pulkkinen, P. |
| Copyright Year | 2000 |
| Abstract | We studied whether the differences between genetically different pollen donors (Betula pendula Roth clones) with respect to pollen-tube growth rate were consistent under different thermal conditions during pollen germination in vivo and in vitro. We conducted a single-donor hand-pollination experiment with same pollen donors and recipients in a plastic house seed orchard and at an outdoor clone collection. The prevailing daily mean temperature during pollen germination was 13°C higher in the plastic house than outdoors. The pollen-tube growth rate of each pollen donor was additionally determined in vitro on agar medium at five temperatures (10°, 15°, 22°, 30° and 35°C). A significant interaction between paternal clone and pollination site as well as between paternal clone and temperature was found, which provides evidence for genotype-environment interactions. Genotype-environment interactions can have evolutionary significance in maintaining the variation in pollen-tube growth rates. At seed orchards, genotype-environment interactions can cause deviations from the expected genetic composition of the seed crop depending on the prevailing environmental conditions during pollen-tube growth. |
| Starting Page | 1108 |
| Ending Page | 1112 |
| Page Count | 5 |
| File Format | |
| ISSN | 00405752 |
| Journal | Theoretical and Applied Genetics |
| Volume Number | 100 |
| Issue Number | 7 |
| e-ISSN | 14322242 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2000-05-12 |
| Publisher Place | Berlin/Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Medicine Biotechnology Agronomy and Crop Science |
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