Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- Editors' note and acknowledgements
- Introduction
- The development of potato varieties in Europe
- Genetic Resources
- Breeding Strategies
- Selection and Screening Methods
- Variety Assessment
- Semi-conventional Breeding Methods
- True Potato Seed
- Unconventional Breeding Methods
- Recent progress in molecular biology and its possible impact on potato breeding: an overview
- Combined application of classical and unconventional techniques in breeding for disease resistant potatoes
- Auther colture of dihaploid Solanum tuberosum H3 703
- Genetic manipulation in potato using Agrobacterium
- Prospects of using tumour-inducing plasmid-mediated gene transfer for the improvement of potato varieties
- Use of protoplast fusion and somaclonal variation in potato breeding
- The potential value of somaclonal variants in potato improvement
- Use of in vitro culture of Solanum tuberosum in potato breeding
- Commentary
- Index
Use of in vitro culture of Solanum tuberosum in potato breeding
Published online by Cambridge University Press: 05 March 2012
- Frontmatter
- Contents
- List of contributors
- Preface
- Editors' note and acknowledgements
- Introduction
- The development of potato varieties in Europe
- Genetic Resources
- Breeding Strategies
- Selection and Screening Methods
- Variety Assessment
- Semi-conventional Breeding Methods
- True Potato Seed
- Unconventional Breeding Methods
- Recent progress in molecular biology and its possible impact on potato breeding: an overview
- Combined application of classical and unconventional techniques in breeding for disease resistant potatoes
- Auther colture of dihaploid Solanum tuberosum H3 703
- Genetic manipulation in potato using Agrobacterium
- Prospects of using tumour-inducing plasmid-mediated gene transfer for the improvement of potato varieties
- Use of protoplast fusion and somaclonal variation in potato breeding
- The potential value of somaclonal variants in potato improvement
- Use of in vitro culture of Solanum tuberosum in potato breeding
- Commentary
- Index
Summary
The potato is an autotetraploid plant, multiplied vegetatively in most instances, with many clones being male sterile, or even completely sterile. The potato was brought into France by only two introductions of a limited number of clones, and was subsequently severely selected to change photoperiod sensitivity. Genetic variability is thus restricted, and this is serious since there is evidence of a correlation between heterozygosity and vigour.
CURRENT SELECTION PRACTICES
Potato breeding practice is in part dictated by the peculiarities of the species. Selection is applied to the products of crosses between plants, and while there are data on the progeny, they are of limited value given the incomplete genetic information for the species. Selection is thus largely ineffective. The sheer mass of vegetative material imposes drastic selection in the early stages, with few representatives per clone. The risk of discarding worthwhile material is high. Hougas and Peloquin (1958) proposed using diploids (dihaploids) as a means of overcoming these difficulties.
USE OF DIPLOIDS IN BREEDING PROGRAMMES
Production of diploids
The first diploids were obtained by Hougas and Peloquin (1957) using Solanum phureja to provoke parthenogenesis. Dunwell and Sunderland (1973) obtained diploids by anther culture and Irikura (1972) cultured anthers of diploids to produce haploids. It is worth investigating several methods of haploid production because, as San (1977) has shown for barley, plants produced by androgenesis, gynogenesis and interspecific crosses can be different from one another.
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- Information
- The Production of New Potato VarietiesTechnological Advances, pp. 331 - 334Publisher: Cambridge University PressPrint publication year: 1987