Viruses Recently Detected in Vegetatively Propagated Petunia

Lesemann, D.‐E.

doi:10.17660/actahortic.1996.432.10

Cited by 28 publications

(26 citation statements)

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“…A potential application of mutagenesis is in the development of petunias with resistance to pathogens that can infect plants during commercial propagation, including powdery mildew [9] and potyviruses [10,11]. Resistance to powdery mildew and potyviruses can be conferred by mutations in specific genes, which have been targets for TILLING in other crop species [12,13].…”

Section: Introductionmentioning

confidence: 99%

Optimization of EMS Mutagenesis on Petunia for TILLING

Y¹,

HD²

2014

Adv Crop Sci Tech

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The development of a chemically-mutagenized population of Petunia hybrida could enable the identification of novel alleles for crop improvement. Conditions were determined for mutagenizing petunia with ethyl methanesulfonate (EMS), while minimizing deleterious effects on viability and fertility. A mutagenized population of the doubled haploid P. hybrida line 'Mitchell Diploid' was developed as a resource for TILLING. Three mutagenesis parameters were investigated in this study: the imbibition of seeds prior to EMS treatment, the EMS concentration, and EMS exposure time. Based on these results, the mutagenesis of 2000 petunia seeds for TILLING was conducted with a 12 hour imbibition followed by exposure to 0.1% EMS for 12 hours.

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Section: Introductionmentioning

confidence: 99%

Optimization of EMS Mutagenesis on Petunia for TILLING

Y¹,

HD²

2014

Adv Crop Sci Tech

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“…Petunia hybrida is one of six members of the Solanaceae grown primarily as an ornamental plant, and the most economically important due to its horticultural value (Sink, 1984). Petunia is a popular bedding plant, the third most valuable after geranium and impatiens (Hamrick, 1997) and it is also grown in pots, hanging baskets, and balcony/window boxes (Lesemann, 1996). Petunia plants are propagated by seeds in nature, but new species of vegetatively propagated petunia have been recently cultivated as garden ornamentals in the world (Dai and Bao, 2004).…”

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confidence: 99%

“…Symptoms induced by these viruses in infected petunia plants are variable, as they are influenced by environmental conditions, virus strains, mixed infections with other viruses, genetic diversity of petunia cultivars, and cultural conditions (Hull, 2002). The symptoms associated with virus diseases in petunia cultivars are stunting and deformation of the foliage, light-green streaks, disclosed and malformed flowers, irregular vein-yellowing, mottling, color breaking, and a reduction in the number and size of the flowers (Edwardson and Christie, 1997;Lesemann, 1996;Lindgren, 1993). Mixed virus infections obviously aggravate symptoms and some infected plants remain symptomless (Brunt et al, 1996;Lesemann, 1996).…”

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confidence: 99%

“…The symptoms associated with virus diseases in petunia cultivars are stunting and deformation of the foliage, light-green streaks, disclosed and malformed flowers, irregular vein-yellowing, mottling, color breaking, and a reduction in the number and size of the flowers (Edwardson and Christie, 1997;Lesemann, 1996;Lindgren, 1993). Mixed virus infections obviously aggravate symptoms and some infected plants remain symptomless (Brunt et al, 1996;Lesemann, 1996). Virus diseases are detrimental to the production and quality of the petunia crop (Sikron et al, 1995).…”

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confidence: 99%

“…Petunia-virus diseases became widespread when asexually propagated hybrids were introduced without strict virusindexing schemes. It is not surprising that sudden and widespread occurrence of CMV in petunias was caused largely by the distribution of infected vegetatively propagated material (Lesemann, 1996). However, CMV is readily transmitted by aphids and in sap, hence it is desirable that growers start with virus free plants, if available, and observe strict hygiene and aphid control practices to minimize the risk of virus spread to other crops, both in and outside of the glass-or green-house (Palukaitis and Garcia- Árenal, 2003).…”

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Characterization of a Novel Cucumber mosaic virus Isolated from Petunia hybrida

Han¹,

Choi²,

Chung³

et al. 2012

The Plant Pathology Journal

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Petunia hybrida is commonly used in landscapes and interiors for its attractive flower. Virus-like foliar symptoms, including a mosaic with dark green islands surrounding the veins and chlorosis on the leaf margins, were observed on a petunia plant from Icheon, Gyeonggido, Korea. Cucumber mosaic virus (CMV) was identified in the symptomatic petunia by serological testing for the presence of CMV coat protein (CP) with a direct antibody-sandwich-enzyme-linked immunosorbent assay. An agent was mechanically transmitted to indicator plant species including Chenopodium quinoa. Examination of the inoculated plant leaves by RT-PCR analysis and electron microscopy revealed the presence of specifically amplified CP products and spherical virions of approximately 28 nm in diameter, respectively, providing confirmation of a CMV infection. Analysis of CP sequences showed that CMV petunia isolate (CMV-YJC) shared 82.5−100% amino acid sequence identity with CPs of representative CMV strains. Phylogenetic analysis of CPs supports that CMV-YJC is a member of CMV subgroup IA (CMV-IA) and has biological properties of CMV-IA on host species. To our knowledge, this is the first report of CMV from P. hybrida in Korea.

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Petunia

Griesbach

Flower Breeding and Genetics

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Petunias are popular seed-and vegetatively-propagated bedding plants with numerous phenotypes (Grandifloras, Multifloras, Millifloras, Waves, Hedgifloras, etc.), series, and cultivars available on the world market. The history of petunia development as a crop is highlighted with implications for a wide variety of other floricultural crops. Hybrid seed production transformed the crop; continued domestication by flower breeders produced a wide range of flower colors and flower patterns. In the 1970s the petunia market flattened out. Not until plant collectors found new phenotypes in wild species (with the wave habit, for instance) did interspecific hybridization revitalize the crop. Petunias are one of the few floriculture crops which have well-established linkage maps, trisomics, transformation/regeneration protocols, precise elucidation of taxonomic and cytogenetic relationships between taxa, and advanced molecular genetics. In particular, elucidation of the genes involved in the flavonoid biosynthesis pathway has enabled precision in the creation of new flower colors or modification of pigment production and expression.

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Viruses Recently Detected in Vegetatively Propagated Petunia

Cited by 28 publications

References 0 publications

Optimization of EMS Mutagenesis on Petunia for TILLING

Optimization of EMS Mutagenesis on Petunia for TILLING

Characterization of a Novel Cucumber mosaic virus Isolated from Petunia hybrida

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