Tomoffel
A Tomoffel (also Tomtoffel ) is a somatic hybrid (mixture) of tomato and potato . This can be generated by protoplast fusion . In the process, the cells of the tomato and potato combine with each other. Contrary to the name, not one type of fruit is produced, but two: tomatoes and potatoes on or under the plant. However, this combination of tomato and potato turns out to be so genetically unstable that it cannot produce fertile seeds.
Another option is to graft a tomato plant onto a potato plant as a base . This combination is also known as “Tomoffel” and is not affected by the genetic instability of cell hybrids. (It forms normal tomato fruits.)
The tomoffel belongs to the nightshade family . The first hybrids were bred by the Tübingen biologist Georg Melchers in 1978.
The word Tomoffel was first used by Ernst Penzoldt in his novel Die Powenzbande , published in 1930 .
Web links
- Hamburg Education Server: Biotechnical Methods in Plant Breeding. Retrieved August 13, 2019 .
- Protoplast fusion - what role do species boundaries play? ( Memento from September 27, 2007 in the Internet Archive )
Individual evidence
- ↑ Tomtoffel in the Lexicon of Biology on Spektrum.de
- ↑ E. Jacobsen, P. Reinhout, JEM Bergervoet, J. de Looff, PE Abidin, DJ Huigen and MS Ramanna: Isolation and characterization of potato-tomato somatic hybrids using an amylose-free potato mutant as parental genotype . In: Theoretical and Applied Genetics , Volume 85, Numbers 2-3, November 1992
- ↑ z. B. Peter Klock: Finishing , 2006
- ^ G. Melchers, MD Sacristán, AA Holder: Somatic hybrid plants of potato and tomato regenerated from fused protoplasts . In: Carlsberg Research Communications , 43, 1978, pp. 203-218, doi: 10.1007 / bf02906548
- ↑ Turnips from the drawing board . In: Der Spiegel . No. 47 , 1981, p. 262-264 (on- line ).