Somaklonale Variation des Krautes, der Vegetationslänge und des Ertrages bei Kartoffeln

Thieme, Ramona; Griess, Helmut

doi:10.1007/bf02357939

Cited by 7 publications

(3 citation statements)

References 14 publications

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“…Field-evaluated calliclones from nodal and internodal segments of 'Multa' and 'Diamant' showed variation in plant height, number of leaves, and yield components (Nasrin et al 2003). Thieme and Griess (1996) evaluated approx. 13,000 calliclones from stem internodes and leaves of 14 (1996) and 17 (2005) potato cultivars in both the greenhouse and field.…”

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confidence: 99%

Intraclonal Selection for Improved Processing of NB ‘Russet Burbank’ Potato

et al. 2011

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Russet Burbank' has limited fertility and has not parented improved cultivars through traditional breeding efforts. This study showed that 'Russet Burbank' (NB clone) could be improved through selection of intraclones (somatic embryos derived from specific tuber tissues) based on field performance and/or processing characteristics. In 2005 and 2006, approx. 800 intraclones were regenerated from field-grown tubers or microtubers. Intraclones were micropropagated, acclimatized, and field-tested to identify the highest yielding lines. Each season, following storage, tubers of selected lines were tested for glucose content and French fry-processing quality. In 2007, the best intraclones from earlier seasons were increased through micropropagation and retested for yield and processing features. Approx. 2-9% of intraclones had similar yield to controls but superior processing features. Neither tuber source nor explant tissue type affected intraclone tuber yield, type, or processing characters. We recommend the incorporation of somatic embryogenesis into potato improvement programs for processing quality traits.Resumen "Russet Burbank" tiene fertilidad limitada y no ha sido progenitor que haya mejorado variedades a través de esfuerzos de mejoramiento tradicional. Este estudio demostró que "Ruset Burbank" (clon NB) pudo mejorarse por selección de intraclones (embriones somáticos derivados de tejidos específicos de tubérculo) con base en el comportamiento en el campo y/o en características de procesamiento. En 2005 y 2006, se regeneraron aproximadamente 800 intraclones de tubérculos cultivados en el campo o de microtubérculos. Los intraclones se micropropagaron, se aclimataron, y se probaron en el campo para identificar las líneas de rendimiento más alto. En cada ciclo de cultivo, después del almacenamiento, se probaron tubérculos de líneas selectas para el contenido de glucosa y de calidad de fritura para papas a la francesa. En 2007, los mejores intraclones de siembras previas se incrementaron por micropropagación y se volvieron a probar para rendimiento y características de procesamiento. Aproximadamente el 2-9% de intraclones tuvieron rendimiento similar al de los testigos pero mejores características de procesamiento. Ni la fuente del tubér-culo ni el tipo de tejido del explante (inóculo) afectaron el rendimiento de tubérculo de los intraclones, o el tipo o características del procesamiento. Recomendamos la incorporación de embriogénesis somática en los programas de mejoramiento de papa para las características de calidad en el procesamiento.

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confidence: 99%

Intraclonal Selection for Improved Processing of NB ‘Russet Burbank’ Potato

et al. 2011

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“…Positive mutations were detected only on I % of plants. The extent of variation in callus culture depended notably on cultivar (Thieme & Griess, 1996). Variations that occurred in callus culture have lead to new clones tolerant to late blight (Guseva & Komaletdinova, 1998).…”

Section: Field Trialsmentioning

confidence: 99%

Variation of agronomic traits of potato somaclones produced by meristem culture

Rosenberg

Särekanno

Kotkas

et al. 2007

South African Journal of Plant and Soil

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“…and Verticillium dahliae by Taylor et al (1993) and Sebastiani et al (1994), respectively. Thieme and Griess (1996) produced thousands of somaclones from various potato cultivars and found variability for agronomic traits related to haulm growth, earliness and tuber yield. Moreover, improved nutritional quality was obtained by Langille et al (1998) in protoplast-derived calli selected in presence of the amino acid analog, ethionine.…”

Section: Introductionmentioning

confidence: 99%

Genetic stability at nuclear and plastid DNA level in regenerated plants of Solanum species and hybrids

et al. 2008

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In this work we detected the extent of variability at nuclear and cytoplasmic DNA level of regenerated plants belonging to Solanum genotypes with a different genetic background and somatic chromosome number. As for the nuclear characterization, a total of 66 (18.5%) polymorphic bands were scored using 13 ISSR primers on 45 randomly selected regenerants. Our results show that the regenerants obtained from clone cmm 1T and, at lower level, those from cph 1C are unstable under in vitro conditions or rather more prone to in vitro- induced stress leading to somaclonal variation than the other genotypes used. Two types of changes were observed: disappearance of parental ISSR fragments, termed ‘‘loss’’; appearance of novel ISSR fragments, termed ‘‘gain’’. The most frequent event occurring in the regenerants was the loss of fragments (41 bands). Regenerated plants were analyzed with seven plastid universal primers to determine the cytoplasmic composition at chloroplast level. All cpDNA primer pairs tested produced amplicons of the same size in all genotypes analyzed and no polymorphic fragments were observed with any universal primers used. Our results show that under in vitro culture conditions genotype affects the integrity of the genome. In addition, the absence of polymorphism at plastid level confirms the greater genetic stability of cytoplasmic DNA

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Somaklonale Variation des Krautes, der Vegetationslänge und des Ertrages bei Kartoffeln

Cited by 7 publications

References 14 publications

Intraclonal Selection for Improved Processing of NB ‘Russet Burbank’ Potato

Intraclonal Selection for Improved Processing of NB ‘Russet Burbank’ Potato

Variation of agronomic traits of potato somaclones produced by meristem culture

Genetic stability at nuclear and plastid DNA level in regenerated plants of Solanum species and hybrids

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