Transformation of Gerbera Plants With Tomato Spotted Wilt Virus (Tswv) Nucleoprotein Gene

Korbin, M.; Podwyszyńska, Małgorzata; Komorowska, B.; Wawrzynczak, D.

doi:10.17660/actahortic.2002.572.17

Cited by 12 publications

(2 citation statements)

References 14 publications

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“…Several N+ lines were infected but showed significantly reduced symptoms W, compared to controls (Sherman et al, 1998). Korbin et at. (2002) used the TSWV N-gene to transform four cultivars of Gerhera.…”

Section: Virus and Vtroid Resistance In Ornamentalsmentioning

confidence: 97%

Current Status of Genetically Modified Ornamentals

Hammond¹

2006

Acta Hortic.

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Biotechnology offers new means of improving ornamental crops by the addition of desirable traits to existing horticulturally-adapted cultivars. Traditional plant breeding involves the exchange of many hundreds or thousands of genes between related species to create novel combinations, and improved genotypes must be selected from thousands of segregating progeny over multiple c y cles of selection. Introgression of a single desirable new character, such as disease resistance, from an unadapted relative of a crop species may require multiple backcross generations to regain the horticultural or ornamental qualities of the original cultivar, often resulting in reduced intensity of expression of the back-crossed character. In the case of many ornamental species, related germplasm with the desired disease resistance has not been identified. This is particularly true in the case of viruses, where few sources of resistance are known among ornamentals and related species. However, it has been demonstrated that effective resistance against many plant viruses can be obtained, in model systems and in some field crops, by introduction of virus-derived sequences or various anti-viral genes. Viral infection is a significant problem in many ornamentals, and especially floral crops, because so many ornamentals are vegetatively propagated. Virus infection frequently reduces floral quality and value as well as y ield. Transformation of crop species with one or more gene constructs can lead to addition of desirable traits, typically with minimal effects on other desirable characteristics. Transformation systems have currently been developed for over 30 species of herbaceous ornamentals and several woody species, and efforts continue in man y laboratories around the world. Several groups are working to introduce virus resistance into various ornamentals, including lilies, gladiolus, chrysanthemums, and various orchids. Other traits of interest include plant architecture, floral longevity, flower color, and resistance to other environmental stresses including drought, pests, and fungal and bacterial diseases. A few genetically modified ornamental crops have been commercialized, notably carnations with altered flower color, and there is future expectation of the introduction of effective virus resistance into commercial floral crops.

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Section: Virus and Vtroid Resistance In Ornamentalsmentioning

confidence: 97%

Current Status of Genetically Modified Ornamentals

Hammond¹

2006

Acta Hortic.

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“…(23,24) In spite of well-developed methods for Gerbera micropropagation, still to-date regeneration and reliable genetic transformation protocols exist only for a few varieties. (25)(26)(27)(28) In our laboratory, transformation of the pink variety Terra Regina is routine using either the Agrobacterium-mediated cocultivation method (25,29) or particle bombardment (P.E., unpublished results). In both systems, pieces of petioles are used as explants and transgenic shoots are selected with a frequency up to 2-3%.…”

Section: Practical Advantages Of Gerberamentioning

confidence: 99%

Mining plant diversity: Gerbera as a model system for plant developmental and biosynthetic research

2006

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Gerbera hybrida is a member of the large sunflower family (Asteraceae). Typical of Asteraceae, Gerbera bears different types of flowers in its inflorescence. The showy marginal flowers comprise elongate, ligulate corollas that are female, whereas the central and inconspicuous disc flowers are complete, with both male and female organs. As such, Gerbera offers great potential for comparative developmental research within a single genotype. Moreover, different Gerbera varieties show an impressive spectrum of color patterns, directly displaying responses to developmental cues at all important morphological levels (flower type, flower organ and within organs). Further, Gerbera harbors an arsenal of Asteraceae-type secondary metabolites, not present in other model plants. With powerful reverse genetics methods, a large collection of EST sequences and a new cDNA microarray, Gerbera has become a model plant of the sunflower family.

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Diseases of Gerbera

Brisco-McCann¹,

Hausbeck²

2016

Handbook of Plant Disease Management

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Transformation of Gerbera Plants With Tomato Spotted Wilt Virus (Tswv) Nucleoprotein Gene

Cited by 12 publications

References 14 publications

Current Status of Genetically Modified Ornamentals

Current Status of Genetically Modified Ornamentals

Mining plant diversity: Gerbera as a model system for plant developmental and biosynthetic research

Diseases of Gerbera

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