Utilization of potato genetic resources in variety development

Pavek, J. J.; Corsini, D. L.

doi:10.1007/bf02896375

Cited by 58 publications

(37 citation statements)

References 55 publications

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“…In spite of these noteworthy characteristics, the use of potato genetic resources has been very limited so far (Pavek and Corsini 2001). One of the main limitations in the use of wild species is that, together with the useful traits, they can transfer characteristics that are undesired from the commercial standpoint.…”

Section: Introductionmentioning

confidence: 99%

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: Introductionmentioning

confidence: 99%

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

et al. 2003

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“…Pavek and Corsini (2001) reported that linkage drag is probably the main factor that has limited the use of wild Solanum species so far. Therefore, time-consuming breeding efforts are required to restore the improved cultivated phenotypes.…”

Section: Discussionmentioning

confidence: 99%

Resistance to Frost and Tuber Soft Rot in Near-Pentaploid Solanum tuberosum-S. commersonii Hybrids

et al. 2007

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“…There is a potential production of ethanol up 9,000 L ha -1 due to the optimized cultivar of potatoes. It is noted that the idea of breeding potatoes for specific objectives is not new since researchers have used this technique to increase resistance to diseases and pests (Pavek and Corsini, 2001). However, a similar methodology has not been utilized yet for the industrial production of biofuels.…”

Section: Starch-rich Potatomentioning

confidence: 99%

Energy ratio analysis of genetically-optimized potato for ethanol production in the Chilean market

Contreras¹,

Díaz²,

Gallardo³

et al. 2010

Span. j. agric. res.

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Energy in all its forms is essential to humanity and is central to the improvement in people's quality of life.The continuous increase in energy demand, the inevitable decline in the availability of fossil fuels, and the growing concerns about climate change have sparked a number of initiatives from governments around Energy ratio analysis of genetically-optimized potato for ethanol production in the Chilean market AbstractThe continuous increase in energy demand, the high cost of imported oil, and the growing concerns about climate change have sparked a number of initiatives from governments around the world to increase production of energy from renewable sources. Along these lines, the Chilean government is analyzing the introduction of a law to set a reference value of 5% of biofuel production to be placed on the market by 2013. The analysis of different options to meet this new regulatory measure needs to consider different alternatives such as biodiesel and bioethanol from crops or lignocellulosic biomass. This paper analyzes the energy ratio of some of the most common crops grown in Chile that can be utilized for ethanol production. Using a methodology adapted to local conditions of agriculture and transportation, the results indicate that a potato cultivar specially bred for high yield, high starch and dry matter content can obtain a positive net energy balance with an energy ratio of 1.8. The results also show yields near 60 tons ha -1 which translate to approximately 9,000 L ha -1 of ethanol making the genetically optimized cultivar of potato a suitable local source for ethanol production.Additional key words: biofuel, energy flow, Solanum tuberosum. Resumen Análisis de la ratio de energía para papa optimizada genéticamente para la producción de etanol en el mercado chilenoEl aumento continuo en la demanda de energía, el alto coste del petróleo importado y la preocupación creciente sobre el cambio climático, han impulsado iniciativas de los gobiernos alrededor del mundo para aumentar la producción de energía a partir de fuentes renovables. El gobierno chileno está analizando la introducción de una ley para poner un valor de referencia del 5% de producción de biocombustibles en el mercado para 2013. El análisis de opciones para implementar esta nueva regulación necesita considerar diferentes alternativas como el biodiesel y bioetanol de cosechas o biomasa de lignocelulosa. Se analizó la ratio de energía de algunas de las cosechas más comunes en Chile aptas para su utilización en la producción de etanol. Usando una metodología adaptada a las condiciones locales de agricultura y transporte, los resultados indican que una variedad de papa genéticamente modificada con altos rendimientos, alto contenido de almidón y volumen de la materia seca, puede obtener una ratio de energía neta positiva de 1,8. Los resultados también muestran rendimientos de 60 ton ha -1 que producen aproximadamente 9.000 L ha -1 de etanol, que hacen una fuente local conveniente a la variedad genéticamente perfeccionada de papa pora la ...

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Utilization of potato genetic resources in variety development

Cited by 58 publications

References 55 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

Resistance to Frost and Tuber Soft Rot in Near-Pentaploid Solanum tuberosum-S. commersonii Hybrids

Energy ratio analysis of genetically-optimized potato for ethanol production in the Chilean market

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