Journal article
Field assessment of dihaploid Solatium tuberosum and S. brevidens somatic hybrids
Theoretical and Applied Genetics, Vol.76(6), pp.880-886
1988
Abstract
Following both chemical and electrical fusion of protoplasts of a dihaploid line of potato (Solanum tuberosum), (PDH40), with those of the wild species, Solanum brevidens, 11 and 40 somatic hybrid plants, respectively were obtained. Fifteen of these somatic hybrid genotypes and the two parents were studied further in a small field trial to assess field performance and phenotypic variability. In the UK, somatic hybrid plants are classified as genetically engineered organisms, and the UK Advisory Committee on Genetic Manipulation have imposed various restrictions on field experiments. Examination of the somatic hybrids in the field showed extensive phenotypic variability, and no two genotypes were identical. Some of the variation reflected changes in chromosome numbers, but other factors were also involved. Half the somatic hybrid genotypes produced tubers in the field, although the tubers were smaller and differed morphologically from those of PDH40. The results of the study suggest that the extent of somaclonal variation manifested in somatic hybrids is greater than that found in protoplast-derived plants of potato. The implications of this observation and the current regulations concerning field experiments of somatic hybrid plants in the UK are discussed.
Details
- Title
- Field assessment of dihaploid Solatium tuberosum and S. brevidens somatic hybrids
- Authors/Creators
- N. Fish (Author/Creator)S.H. Steele (Author/Creator)M.G.K. Jones (Author/Creator)
- Publication Details
- Theoretical and Applied Genetics, Vol.76(6), pp.880-886
- Publisher
- Springer Verlag
- Identifiers
- 991005544392907891
- Copyright
- © 1988 Springer-Verlag
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.119 Micropropagation
- Web Of Science research areas
- Agronomy
- Genetics & Heredity
- Horticulture
- Plant Sciences
- ESI research areas
- Agricultural Sciences