A deletion specific to chloroplast (ct) DNA of potato (Solanum tuberosum ssp. tuberosum) was determined by comparative sequence analysis. The deletion was 241 bp in size, and was not flanked by direct repeats. Five small, open reading frames were found in the corresponding regions of ctDNAs from wil
Preventing chimerism in potato (Solanum tuberosumL.)
β Scribed by A. M. Harten; H. Bouter; A. Ommeren
- Book ID
- 104618752
- Publisher
- Springer
- Year
- 1972
- Tongue
- English
- Weight
- 777 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0014-2336
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β¦ Synopsis
A fast neutron irradiation experiment using two different dose rates has been performed on the potato variety Desiree in order to obtain chimera-free mutants. Both tubers and tuber parts (cross sections) were de-eyed at different moments before and after irradiation. Adventitious sprouts successively developing on the callus in the holes of excised eyes were separated from the treated tubers and planted individually. So called 'grouped' sprouts were separated. Results indicated that (practically) chimerafree mutants can be obtained by de-eying tuber parts shortly before irradiation, by applying relatively high dose-rates and by taking adventitious sprouts which develop not earlier than three months after irradiation.
Separation of the grouped sprouts demonstrated that each part originated from a single original cell.
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The total glycoalkaloid concentrations in aerial and subterranean tubers of 14 potato genotypes were measured using high-performance liquid chromatography immediately after harvest. Post-harvest, aerial tubers from all genotypes were exposed to 144 h continuous fluorescent light; additionally three