`Florida Calypso': A Multicolored Caladium for the Landscape and Containers

Wilfret, Gary J.

doi:10.21273/hortsci.30.4.777d

Cited by 10 publications

(15 citation statements)

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“…Their similarity coefficient was 0.963. 'Candidum Jr.' was believed to be a sport selection of 'Candidum' (Wilfret, 1991). 'Candidum' was reportedly developed by Bleu (a French pioneer of caladium hybridization) in %1880 (Hayward, 1950).…”

Section: Resultsmentioning

confidence: 99%

Assessment of Genetic Diversity and Relationships Among Caladium Cultivars and Species Using Molecular Markers

Deng¹,

Goktepe²,

Harbaugh³

et al. 2007

J. Amer. Soc. Hort. Sci.

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Caladium (Caladium ×hortulanum Birdsey) is an important aroid widely used in the ornamental plant industry. Concerns have been raised about possible loss of genetic diversity due to a drastic decline in the number of cultivars in the last century. This study assessed genetic diversity and relationships among caladium cultivars and species accessions. Forty-five major cultivars and 14 species accessions were analyzed based on 297 DNA fragments produced by the target-region amplification polymorphism marker system. A low level of diversity (44.4% polymorphism) was exhibited in cultivars, while a high level of diversity (96.8% polymorphism) was present among seven accessions of Caladium bicolor (Aiton) Vent., Caladium marmoratum Mathieu, Caladium picturatum C. Koch, and Caladium schomburgkii Schott. A small percentage (7.6%) of DNA fragments was present in cultivars but absent in the seven species accessions, while a high percentage (32.2%) of DNA fragments was present in the seven species accessions but absent in cultivars. Cultivars shared a higher level of similarity at the molecular level with an average Jaccard coefficient at 0.802, formed a large group in cluster analysis, and concentrated in the scatter plot from a principal-coordinate analysis. Two accessions of C. bicolor and C. schomburgkii were very similar to cultivars with Jaccard similarity coefficients from 0.531 to 0.771, while the rest of the species accessions had small similarity coefficients with cultivars (0.060 to 0.386). Caladium steudnirifolium Engler and Caladium lindenii (André) Madison were very dissimilar to C. bicolor, C. marmoratum, C. picturatum, and C. schomburgkii, with Jaccard similarity coefficients from 0.149 to 0.237 (C. steudnirifolium) and from 0.060 to 0.118 (C. lindenii). There is a limited amount of molecular diversity in caladium cultivars, but the great repertoire of unique genes in species accessions could be used to enhance the diversity in future cultivars and reduce potential genetic vulnerability.

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Section: Resultsmentioning

confidence: 99%

Assessment of Genetic Diversity and Relationships Among Caladium Cultivars and Species Using Molecular Markers

Deng¹,

Goktepe²,

Harbaugh³

et al. 2007

J. Amer. Soc. Hort. Sci.

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“…All three blotched cultivars tested in this study ('Carolyn Whorton', 'White Christmas', and 'Florida Blizzard') are heterozygous for leaf blotching. Several other commercially available blotched cultivars, including Florida Calypso, Florida Elise, and Florida Roselight, are progeny of 'Carolyn Whorton' and nonblotched cultivars (Wilfret, 1992(Wilfret, , 1995. These cultivars are expected to be heterozygous for leaf blotching as well.…”

Section: Resultsmentioning

confidence: 99%

Leaf Blotching in Caladium (Araceae) Is Under Simple Genetic Control and Tightly Linked to Vein Color

Deng¹,

Harbaugh²

2009

horts

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Cultivated caladiums (Caladium ×hortulanum Birdsey) are valued as important pot and landscape plants because of their bright, colorful leaves. Improving leaf characteristics or generating new combinations of these characteristics has been one of the most important breeding objectives in caladium. A major leaf characteristic in caladium is leaf blotching, the presence of numerous irregularly shaped color areas between major veins on leaf blades. This pattern of coloration in combination with bright colors has resulted in the popularity of a number of caladium cultivars. In this study, controlled crosses were made among three blotched and six nonblotched caladium cultivars. Their progeny were analyzed to understand the mode of inheritance of leaf blotching and its genetic relationship with the color of main leaf veins. Progeny of selfing nonblotched or crossing nonblotched cultivars were all nonblotched; selfing blotched cultivars (Carolyn Whorton, White Christmas, and Florida Blizzard) or crossing ‘Florida Blizzard’ and ‘Carolyn Whorton’ resulted in a 3:1 ratio (blotched:nonblotched); and progeny from crosses between blotched and nonblotched cultivars segregated in a 1:1 ratio (blotched:nonblotched). These results indicate that leaf blotching is controlled by a single nuclear locus with two alleles (B and b). χ2 analysis of the joint segregation between leaf blotching and vein color (V) in five crosses showed that the blotching allele B is linked to the green vein allele Vg. ‘Carolyn Whorton’, ‘White Christmas’, and ‘Florida Blizzard’ are heterozygous for leaf blotching, and their genotype for leaf blotching and vein color (Vr, Vw, and Vg for red, white, and green veins, respectively) are Vrb//VgB, Vgb//VgB, and Vwb//VgB, respectively. This information will be valuable for planning crosses and breeding populations to develop new blotched caladium cultivars. The information gained in this study may be helpful for understanding the inheritance of similar traits in other aroids.

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“…'Candidum Junior' was selected because of its leaf production and bright white color. Ancestry of 'Aaron' is unknown, while 'Candidum Junior' is believed to be a fi eld mutation of 'Candidum' (Wilfret, 1991). Tubers were propagated on fumigated EauGallie fi ne sand soil at the Gulf Coast Research and Education Center (GCREC) at Bradenton, Fla., and were treated with hot water for nematode control (Rhodes, 1964).…”

Section: Originmentioning

confidence: 99%

`Garden White'—A Large White Fancy-leaved Caladium for Sunny Landscapes and Large Containers

Deng¹,

Harbaugh²

2006

HortSci

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`Florida Calypso': A Multicolored Caladium for the Landscape and Containers

Cited by 10 publications

References 0 publications

Assessment of Genetic Diversity and Relationships Among Caladium Cultivars and Species Using Molecular Markers

Assessment of Genetic Diversity and Relationships Among Caladium Cultivars and Species Using Molecular Markers

Leaf Blotching in Caladium (Araceae) Is Under Simple Genetic Control and Tightly Linked to Vein Color

`Garden White'—A Large White Fancy-leaved Caladium for Sunny Landscapes and Large Containers

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