Glycoalkaloid composition of wild and cultivated tuber-bearing Solanum species of potential value in potato breeding programs

Osman, Stanley F.; Herb, S. F.; Fitzpatrick, Thomas J.; Schmiediche, P. E.

doi:10.1021/jf60219a024

Cited by 51 publications

(41 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous studies of glycoalkaloid content in tubers of wild potatoes report values ranging from 20-126 mg/100 g fresh weight (Johns and Osman, 1986 ;Osman et al ., 1978), with values typically about 50 mg/100 g .…”

Section: Edible Wild Species Of Potatoesmentioning

confidence: 99%

See 1 more Smart Citation

Glycoalkaloid change during the domestication of the potato, Solanum Section Petota

Johns

Alonso

1990

Euphytica

View full text Add to dashboard Cite

The hypothesis that selection for reduced toxicity occurred as part of the domestication of the potato was investigated by analyses of the total glycoalkaloid (TGA) content of 30 accessions of 8 species of reputed wild progenitors of Solanum tuberosum and S. stenotomum and 12 accessions of 5 species of edible wild potatoes . Although mean TGA content of tubers of likely ancestoral species varied from 24-96 mg/100g, the most likely progenitor (S . sparsipilum) had the highest glycoalkaloid content (range 40-164 ; mean 96 mg/100 g) . Three of the five wild species known to have been eaten historically had potentially toxic TGA content . Mexican S . cardiophyllum and S. ehrenbergii, however, contained almost no glycoalkaloids . The individual glycoalkaloids are reported for each of the accessions studied . The results indicate that the above hypothesis can be accepted .

show abstract

Section: Edible Wild Species Of Potatoesmentioning

confidence: 99%

“…As a result they are usually consumed after detoxification processing (Johns & Kubo, 1988) or with edible clay (Johns, 1986) . Total glycoalkaloid content of these tubers varies between 12 and 64 mg/100 g (Johns, 1990 ;Osman et al ., 1978) .…”

Section: Glycoalkaloids In Cultivated Potatoesmentioning

confidence: 99%

Glycoalkaloid change during the domestication of the potato, Solanum Section Petota

Johns

Alonso

1990

Euphytica

View full text Add to dashboard Cite

show abstract

“…The reduced pupation was attributed to a factor of antibiosis effective in the tubers of the resistant accessions (Raman & Palacios, 1982) . The observed resistance was not correlated however with total tuber glycoalkaloid content in the species accessions in question (Schmiediche, 1977 ;Osman et al ., 1978 ;Raman & Palacios, 1982) .…”

Section: Introductionmentioning

confidence: 92%

The breeding potential of wild potato species resistant to the potato tuber moth, Phthorimaea operculella (Zeller)

et al. 1988

View full text Add to dashboard Cite

The potato tuber moth, Phthorimaea operculella (Zeller) is an important pest of potatoes in the field and in stores in warm environments throughout the world . In this study genetic resistance to potato tuber moth was identified in clones of Solanum sparsipilum (coded MBN) originally developed for resistance to bacterial wilt and root-knot nematode . Resistance to this pest in S. sucrense and S. tarijense as well as S. sparsipilum was exploited in wide crosses with diploid and tetraploid cultivated potatoes, and haploids derived from S. tuberosum ; hybrid progenies were produced . Crosses between resistant S . pinnatisectum or S . commersonii and cultivated potatoes failed completely, although S . commersonii did hybridise with two bridging species S. lignicaule and S. capsicibaccatum which are slightly compatible with cultivated potatoes . Resistance to potato tuber moth was transferred to all progenies except those in which S . tarijense was the resistant parent. The development of potatoes resistant to potato tuber moth is discussed in the context of population breeding for the lowland tropics .

show abstract

“…Cultivated potatoes generally have less solanine, and cases of poisoning are rare. Tubers of wild potato species vary in the identity and quantity of glycoalkaloids present (Schrieber, 1968;Osman et al, 1978;Gregory et al, 1981;Johns and Osman, 1986). Wild species in general have 100 mg/100 g or more of total glycoalkaloids.…”

Section: Glycoalkaloids and Potato Taste Qualitymentioning

confidence: 99%

“…• ajanhuiri, at least, were known to contain ec-solanine and o~-chaconine (Osman et aL, 1978), the alkaloids characteristic of most cultivated potatoes, we hypothesized that preference and selection for solanidine-containing glycoalkaloids (o~-solanine and a-chaconine) vs. those containing tomatidine, e.g., tomatine, could be a driving force in potato domestication (Johns, 1986a). Evidence from animal studies indicated that, in general, tomatine is not more toxic than a-solanine and o~-chaconine (Nishie, Norred, and Swain, 1975).…”

Section: Glycoalkaloids and Potato Taste Qualitymentioning

confidence: 99%

Taste evaluation of potato glycoalkaloids by the Aymara: A case study in human chemical ecology

Johns

Keen

1986

Hum Ecol

View full text Add to dashboard Cite

Glycoalkaloid composition of wild and cultivated tuber-bearing Solanum species of potential value in potato breeding programs

Cited by 51 publications

References 12 publications

Glycoalkaloid change during the domestication of the potato, Solanum Section Petota

Glycoalkaloid change during the domestication of the potato, Solanum Section Petota

The breeding potential of wild potato species resistant to the potato tuber moth, Phthorimaea operculella (Zeller)

Taste evaluation of potato glycoalkaloids by the Aymara: A case study in human chemical ecology

Contact Info

Product

Resources

About