Characterization of the Ornamental Value of Calibrachoa Spp. Native to Argentina

Facciuto, G.; Pannunzio, M. J.; Coviella, María Andrea; Soto, S.; Hagiwara, Juan Carlos; Borja, M.

doi:10.17660/actahortic.2006.714.4

Cited by 4 publications

(3 citation statements)

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“…This genus, shows a high phenotypic variability and the selection of genotypes is carried out giving special value to plant architecture, number of flowers and colour. As Calibrachoa can be used as pot plant and in hanging baskets, pot coverage in cultivation was studied as an important characteristic for selection in the breeding process (Facciuto et al, 2006).…”

Section: Landscape Plantsmentioning

confidence: 99%

Selection process in ornamental plant breeding

Bugallo

Facciuto²

2023

Ornam. Hortic.

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The selection is a process in which the best genotypes are chosen according to the desired characteristics for the specific use of the plant. Novelty, health, particular characteristics of each market and, increasingly, the low environmental impact of its production, are valued. One of the most questionable points in the selection of ornamental plants is the fact that beauty is subjective. To reduce subjectivity, breeders have chosen to delimit the selection criteria previously, generating a ranking and assigning values to each of the characters for the new cultivar. The selection criteria and traits to be evaluated depend on the use for which the crop is intended: cut flowers and foliage, pot plants, and landscape plants. In addition, the selection of functional plants (green walls and curtains, green roofs and ecological function plants) have their own criteria.

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Section: Landscape Plantsmentioning

confidence: 99%

Selection process in ornamental plant breeding

Bugallo

Facciuto²

2023

Ornam. Hortic.

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“…(ex La Lave & Lexarza) genus, which belongs to the Solanaceae family (Hunziker, 2001). In terms of the ornamental characteristics of the genus, the variability in size and color of the flowers, and the diversity in the form and size of the leaves are worth mentioning (Facciuto et al, 2006). Knowledge of genetic variability of available material, represents a key strategy for the generation of tools to assist breeding programs (Cubero, 2003).…”

Section: Introductionmentioning

confidence: 99%

Structure and Genetic Diversity of Three Calibrachoa Caesia Populations by Issr Markers

Torre¹,

Heinz²,

Escandón³

2013

Acta Hortic.

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Calibrachoa caesia is one of thirteen native species of the Calibrachoa Cerv. (ex La Lave & Lexarza) genus, Solanaceae family, growing in Argentina. The genus has a high ornamental value due to the variability that it shows for different genetic characters, including the flower colors. The structure and variation of 29 accessions from three departments in the province of Misiones (Oberá, Guaraní and San Ignacio) were analyzed by ISSR markers. Thirteen ISSR primers produced a reproducible banding pattern, with 652 amplified loci and 97.4% polymorphism value. The polymorphism information content ranged from 0.144 to 0.170 for accessions from San Ignacio and Oberá departments, being the average 0.158, whereas the Shannon Index showed an average of 0.256. The principal coordinate analysis showed that the San Ignacio individuals were more disperse than the Guaraní and Oberá accessions. The AMOVA test for Guaraní, Oberá and San Ignacio populations, showed highest genetic variation within populations (93.59%), meanwhile the F st coefficient was 0.064, indicating a low to medium differentiation between populations. These results showed a great intrapopulation genetic diversity but no significant difference was detected among San Ignacio, Oberá and Guaraní populations. According to these results, the highly polymorphic level of the 29 analyzed individuals from the three locations represents an important source of genetic variability for future breeding programs.

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“…(ex La Llave and Lexarza), belongs to the Solanaceae family (La Llave and Lexarza, 1825;Hawkes et al 1991). The native species of Calibrachoa are long-day plants, except for C. caesia that is neutral day (Facciuto et al 2006). C. caesia is a native species from Misiones province.…”

Section: Introductionmentioning

confidence: 99%

Analysis of genetic variability by ISSR markers in Calibrachoa caesia

Torre¹,

García²,

Heinz³

et al. 2012

Electron. J. Biotechnol.

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Background: Calibrachoa Cerv. (ex La Llave & Lexarza) is a genus of the Solanaceae family (La Llave and Lexarza, 1825). This genus has a high ornamental and economic value due to its intrinsic variability and multiplicity of flower colours. In Argentina there are eight native species, and one of them is Calibrachoa caesia. The genetic diversity among 35 accessions of C. caesia, from five departments in the province of Misiones, was analyzed using ISSR markers. Results: Thirteen ISSR primers yielded a reproducible banding pattern, with 701 amplified loci and 98% of polymorphism. The ISSR primers 5'CT, 5'CA, 5'GA, 5'GACA, 3'CAC, 3'TG and 3'TC generated 100% polymorphic patterns. The Rp values ranged from 23.20 to 10.29 for 5'GACA and 3'AG primers, respectively, while the average values for MI and PIC were 0.367 and 0.231, respectively. The more informative primers were 5'GACA and 5'GA, and the less informative was 3'AC. Simple matching coefficient of similarity varied from 0.8875 to 0.6659, indicating high levels of genetic similarity among the genotypes studied. The UPGMA cluster analysis indicated three distinct clusters; one comprised genotypes of the five departments, while the second included individuals from Guaraní and Oberá regions and the third cluster included the San Pedro individuals. The overall grouping pattern is in agreement with principal coordinate analysis (PCoA). Conclusions: The Bayesian cluster analysis revealed structuring of the C. caesia population and two clusters were identified, which correspond to UPGMA major clades. The AMOVA test for all populations showed highest genetic variation within populations (90%), meanwhile the F st coefficient was 0.098, indicating a medium differentiation between populations. These results showed a great intrapopulation genetic diversity but no significant difference was detected among populations. In this work the use of thirteen ISSR markers, allowed the characterization of every individual examined. Therefore, the possibility of using molecular data for varietal identification is a promising tool for application in future breeding programs in the genus Calibrachoa.Note: Electronic Journal of Biotechnology is not responsible if on-line references cited on manuscripts are not available any more after the date of publication. Supported by UNESCO / MIRCEN network.

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Characterization of the Ornamental Value of Calibrachoa Spp. Native to Argentina

Cited by 4 publications

References 0 publications

Selection process in ornamental plant breeding

Selection process in ornamental plant breeding

Structure and Genetic Diversity of Three Calibrachoa Caesia Populations by Issr Markers

Analysis of genetic variability by ISSR markers in Calibrachoa caesia

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