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Breeding strategies to increase genetic variability within Hibiscus syriacus

(2006) Acta Horticulturae. 714. p.75-81
Author
Organization
Abstract
In an attempt to introgress an increased growth vigour and improved flowering into H. syriacus two different breeding strategies were followed. A first approach focused on creating hexaploid H. syriacus plants. This was done by crossing tetraploid H. syriacus cultivars with colchicine doubled (octoploid) H. syriacus `Oiseau Bleu' seedlings. The generated hexaploid progeny had an increased growth vigour compared to tetraploid cultivars. The F1 seedlings were also sterile. Out of the hexaploid F1 population an improved blue flowered plant was selected and multiplied. The second strategy emphasized on the interspecific hybridization between H. syriacus and H. paramutabilis. When used as a seed parent, H. paramutabilis failed to set fruits. However, in reciprocal crosses flowers reacted by fruit setting. Also in these crosses a high number of fruits aborted in an early stage of development. Germination of the surviving seeds occurred within 2-3 weeks. The generated seedlings grew vigorously. Leaves of all seedlings had an intermediate morphology compared to those of H. paramutabilis and H. syriacus, indicating that the obtained progenies were true interspecific hybrids.
Keywords
polyploidization, Hibiscus, embryo rescue, interspecific hybridization, CYTOMETRIC ANALYSIS, PLOIDY

Citation

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MLA
Van Laere, K, Johan Van Huylenbroeck, and Erik Van Bockstaele. “Breeding Strategies to Increase Genetic Variability Within Hibiscus Syriacus.” Acta Horticulturae. Ed. A Mercuri & T Schiva. Vol. 714. Leuven, Belgium: International Society for Horticultural Science (ISHS), 2006. 75–81. Print.
APA
Van Laere, K, Van Huylenbroeck, J., & Van Bockstaele, E. (2006). Breeding strategies to increase genetic variability within Hibiscus syriacus. In A. Mercuri & T. Schiva (Eds.), Acta Horticulturae (Vol. 714, pp. 75–81). Presented at the 22nd International Eucarpia symposium section Ornamentals : Breeding for beauty, Leuven, Belgium: International Society for Horticultural Science (ISHS).
Chicago author-date
Van Laere, K, Johan Van Huylenbroeck, and Erik Van Bockstaele. 2006. “Breeding Strategies to Increase Genetic Variability Within Hibiscus Syriacus.” In Acta Horticulturae, ed. A Mercuri and T Schiva, 714:75–81. Leuven, Belgium: International Society for Horticultural Science (ISHS).
Chicago author-date (all authors)
Van Laere, K, Johan Van Huylenbroeck, and Erik Van Bockstaele. 2006. “Breeding Strategies to Increase Genetic Variability Within Hibiscus Syriacus.” In Acta Horticulturae, ed. A Mercuri and T Schiva, 714:75–81. Leuven, Belgium: International Society for Horticultural Science (ISHS).
Vancouver
1.
Van Laere K, Van Huylenbroeck J, Van Bockstaele E. Breeding strategies to increase genetic variability within Hibiscus syriacus. In: Mercuri A, Schiva T, editors. Acta Horticulturae. Leuven, Belgium: International Society for Horticultural Science (ISHS); 2006. p. 75–81.
IEEE
[1]
K. Van Laere, J. Van Huylenbroeck, and E. Van Bockstaele, “Breeding strategies to increase genetic variability within Hibiscus syriacus,” in Acta Horticulturae, San Remo, Italy, 2006, vol. 714, pp. 75–81.
@inproceedings{409965,
  abstract     = {In an attempt to introgress an increased growth vigour and improved flowering into H. syriacus two different breeding strategies were followed. A first approach focused on creating hexaploid H. syriacus plants. This was done by crossing tetraploid H. syriacus cultivars with colchicine doubled (octoploid) H. syriacus `Oiseau Bleu' seedlings. The generated hexaploid progeny had an increased growth vigour compared to tetraploid cultivars. The F1 seedlings were also sterile. Out of the hexaploid F1 population an improved blue flowered plant was selected and multiplied. The second strategy emphasized on the interspecific hybridization between H. syriacus and H. paramutabilis. When used as a seed parent, H. paramutabilis failed to set fruits. However, in reciprocal crosses flowers reacted by fruit setting. Also in these crosses a high number of fruits aborted in an early stage of development. Germination of the surviving seeds occurred within 2-3 weeks. The generated seedlings grew vigorously. Leaves of all seedlings had an intermediate morphology compared to those of H. paramutabilis and H. syriacus, indicating that the obtained progenies were true interspecific hybrids.},
  author       = {Van Laere, K and Van Huylenbroeck, Johan and Van Bockstaele, Erik},
  booktitle    = {Acta Horticulturae},
  editor       = {Mercuri, A and Schiva, T},
  isbn         = {9789066055490},
  issn         = {0567-7572},
  keywords     = {polyploidization,Hibiscus,embryo rescue,interspecific hybridization,CYTOMETRIC ANALYSIS,PLOIDY},
  language     = {eng},
  location     = {San Remo, Italy},
  pages        = {75--81},
  publisher    = {International Society for Horticultural Science (ISHS)},
  title        = {Breeding strategies to increase genetic variability within Hibiscus syriacus},
  url          = {http://www.actahort.org/books/714/714_9.htm},
  volume       = {714},
  year         = {2006},
}

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