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DOI: | 10.2135/cropsci2013.02.0124 |
Web URL(s): | https://dl.sciencesocieties.org/publications/cs/articles/53/5/2218 Last checked: 11/07/2016 Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/cs/pdfs/53/5/2218 Last checked: 11/07/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Schwartz, Brian M.;
Harris-Shultz, Karen R.;
Contreras, Ryan N.;
Hans, Christian S.;
Jackson, Scott A. |
Author Affiliation: | Schwartz: Dep. of Crop and Soil Sciences, Univ. of Georgia, Tifton, GA; Harris-Shultz: Crop Genetics and Breeding Res. Unit, USDA-ARS, Tifton, GA; Contreras: Dep. of Horticulture, Oregon State Univ., Corvallis, OR; Hans and Jackson: Dep. of Crop and Soil Sciences, Univ. of Georgia, Athens, GA |
Title: | Creation of hexaploid and octaploid zoysiagrass using colchicine and breeding |
Section: | Turfgrass science Other records with the "Turfgrass science" Section
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Source: | Crop Science. Vol. 53, No. 5, September/October 2013, p. 2218-2224. |
Publishing Information: | Madison, Wisconsin: Crop Science Society of America |
# of Pages: | 7 |
Related Web URL: | https://dl.sciencesocieties.org/publications/cs/abstracts/53/5/2218 Last checked: 11/07/2016 Notes: Abstract only https://dl.sciencesocieties.org/publications/cs/articles/53/5/2218?show-t-f=tables&wrapper=no Last checked: 11/07/2016 Notes: Tables only https://dl.sciencesocieties.org/publications/cs/articles/53/5/2218?show-t-f=figures&wrapper=no Last checked: 11/07/2016 Notes: Figures only |
Keywords: | TIC Keywords: Colchicine; Cultivar evaluation; Growth rate; Research; Selective breeding; Zoysia japonica
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Cultivar Names: | Zenith |
Abstract/Contents: | "Zoysiagrasses (Zoysia Willd.) are a slow-growing, tetraploid (2n = 4x = 40) turfgrass that can be successfully managed with less input than many other warm-season grasses. Despite extensive genetic and morphological variation, genotypes with the ability to recuperate quickly from damage are rare. Therefore, a long-term effort to increase vegetative growth rates was initiated during 2009 by first studying the effectiveness of six colchicine seed treatments and breeding for manipulating the ploidy level of 'Zenith' zoysiagrass. Colchicine-treated seedlings were screened using flow cytometry for genome size changes. Four putative octaploids and one cytochimera were identified. Average stomata length of the four colchicine-induced putative octaploids were 28% larger than that of Zenith, but the cytochimeras stomata length was not altered. Pollen diameter of the four putative octaploids was larger than that of Zenith and the cytochimera. Pollen stainability was relatively unchanged by the colchicine treatments. Further self- and cross-pollination of 09-TZ-103 (putative M0 octaploid) led to the development and verification of M1 octaploid and M1 hexaploid genotypes. These results support that DNA content of the L-I (epidermis), L-II (germ line), and L-III (adventitious roots) histogenic layers of Zoysia can be manipulated with colchicine and breeding. Future evaluation of the turfgrass performance of these polyploids is the next step in determining the value of this breeding procedure for improvement of zoysiagrass." |
Language: | English |
References: | 53 |
Note: | Pictures, b/w Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Schwartz, B. M., K. R. Harris-Shultz, R. N. Contreras, C. S. Hans, and S. A. Jackson. 2013. Creation of hexaploid and octaploid zoysiagrass using colchicine and breeding. Crop Sci. 53(5):p. 2218-2224. |
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| DOI: 10.2135/cropsci2013.02.0124 |
| Web URL(s): https://dl.sciencesocieties.org/publications/cs/articles/53/5/2218 Last checked: 11/07/2016 Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/cs/pdfs/53/5/2218 Last checked: 11/07/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: b2211522a |
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