Formation of parental-type and novel glycoalkaloids in somatic hybrids between Solanum brevidens and S. tuberosum

Laurila, Jaana; Laakso, Into; Valkonen, Jari P. T.; Hiltunen, R.; Pehu, E.

doi:10.1016/0168-9452(96)04435-4

Cited by 43 publications

(44 citation statements)

References 31 publications

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“…The formation of new types of GAs is a major concern of interspecific hybridization, due to possible recombination events between different types of sugar aglycones. Laurila et al (1996), for example, found that GAs not produced by the parents were present in tbr-Solanum brevidens somatic hybrids.…”

Section: Discussionmentioning

confidence: 97%

Glycoalkaloids and acclimation capacity of hybrids between Solanum tuberosum and the incongruent hardy species Solanum commersonii

et al. 2003

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F(1) and backcross hybrids between sexually incompatible species Solanum commersonii and Solanum tuberosum were characterized for glycoalkaloid content and capacity to cold acclimate. Glycoalkaloid (GA) analysis revealed that F(1) triploids and BC(1) pentaploids contained the glycoalkaloids of both parents. In BC(2) (near) tetraploids the situation was different, in that some hybrids produced the GAs of both parents, whereas others contained only the GAs of S. tuberosum. This suggested that the GAs from S. commersonii may be lost rapidly, and that they may have a simple genetic control. The total tuber GA content of BC(1) and BC(2) groups averaged quite acceptable levels (165.9 mg/kg in BC(1) and 192.8 mg/kg in BC(2)), with six genotypes having a GA content <200 mg/kg fresh weight. The F(1) triploid hybrids expressed a capacity to cold acclimate similar to S. commersonii, whereas BC(1) and BC(2) genotypes generally displayed an acclimation capacity higher than the sensitive parent but lower than S. commersonii. However, one BC(1) and two BC(2) genotypes with an acclimation capacity as high as S. commersonii were identified. The polar lipid fatty acid composition in S. commersonii and its hybrid derivatives showed that, following acclimation, there was a significant increase in 18:3. Correlation analysis between the capacity to cold acclimate and the increase in 18:3 was significant, suggesting that the increase in 18:3 can be used as a biochemical marker for the assisted selection of cold-acclimating genotypes in segregating populations.

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Section: Discussionmentioning

confidence: 97%

Glycoalkaloids and acclimation capacity of hybrids between Solanum tuberosum and the incongruent hardy species Solanum commersonii

et al. 2003

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“…Besides representing a novel potato breeding scheme based on biotechnology methods, the studies produced a lot of fundamental, new information about the somatic, cytogenetic and sexual compatibility of distantly related Solanum species and utility of the disease resistance traits expressed by them. It was also found that the somatic hybrids of potato and S. brevidens synthesize a novel glycoalkaloid that was not found in the parental genotypes (Laurila et al 1996). This finding opened an important new line of research because glycoalkaloids are considered as potential biomolecules in pharmaceutical industry, which is a study area currently pursued at VTT.…”

Section: Potato Biotechnologymentioning

confidence: 89%

Plant biotechnology for deeper understanding, wider use and further development of agricultural and horticultural crops

Elomaa¹,

Joensuu²,

Korpelainen³

et al. 2008

AFSci

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Plants bind solar energy to organic matter via photosynthesis and assimilation of carbon dioxide from the atmosphere and comprise the major source of nutrition and bioenergy. Plant biotechnology contributes to solution of important constraints in food and feed production and creates new technologies and applications for the sustainable use of plant resources. Genome-wide approaches such as massive parallel sequencing and microarrays to study gene expression, molecular markers for selection of important traits in breeding, characterization of genetic diversity with the aforementioned approaches, and somatic hybridization and genetic transformation are important tools in plant biotechnology. In this paper, studies carried out on enhanced resistance to viruses and tolerance of cold stress in potato, genetic modification of flower pigmentation and morphology in gerbera, production of edible vaccines in transgenic barley seeds, and expression of heterologous proteins for pharmaceutical purposes from vector viruses were chosen to exemplify the general utility of biotechnological approaches and also how plant biotechnology research has developed on cultivated plants at University of Helsinki. The studies reveal cellular and genetic mechanisms and provide scientific information that can be used for widening the uses of crop plants. They can also be used to detect any putative risks associated with the use of the biotechnological application in agriculture and horticulture and to develop practises which reduce any inadvertent negative consequences that plant production may have to the environment.

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“…The development of an interspecific somatic hybrid of potato (S. tuberosum and Solanum brevidens) containing demissidine (Laurila et al, 1996) has often been cited as proof that novel toxins can arise during breeding. In fact, Jadhav et al (1981) documented the presence of demissidine in potato more than a decade before it was found in the hybrid.…”

Section: Interactions and Plasticity Are Ubiquitous And Important Phementioning

confidence: 99%

Editor’s Choice: Evaluating the Potential for Adverse Interactions within Genetically Engineered Breeding Stacks

Steiner¹,

Halpin

Jez

et al. 2013

Plant Physiol.

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Formation of parental-type and novel glycoalkaloids in somatic hybrids between Solanum brevidens and S. tuberosum

Cited by 43 publications

References 31 publications

Glycoalkaloids and acclimation capacity of hybrids between Solanum tuberosum and the incongruent hardy species Solanum commersonii

Glycoalkaloids and acclimation capacity of hybrids between Solanum tuberosum and the incongruent hardy species Solanum commersonii

Plant biotechnology for deeper understanding, wider use and further development of agricultural and horticultural crops

Editor’s Choice: Evaluating the Potential for Adverse Interactions within Genetically Engineered Breeding Stacks

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