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| DOI: | 10.2135/cropsci2012.04.0234 |
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| Web URL(s): | https://dl.sciencesocieties.org/publications/cs/articles/53/1/296
Last checked: 11/07/2016
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| Publication Type:
| Refereed |
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| Author(s): | Milla-Lewis, Susana R.;
Zuleta, M. Carolina;
Van Esbroeck, George A.;
Quesenberry, Kenneth H.;
Kenworthy, Kevin E. |
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| Author Affiliation: | Milla-Lewis, Zuleta and Van Esbroeck: Dep. of Crop Science, North Carolina State Univ., Raleigh, NC; Quesenberry and Kenworthy: Agronomy Dep., Univ. of Florida, Gainesville, FL |
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| Title: | Cytological and molecular characterization of genetic diversity in Stenotaphrum |
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| Section: | Turfgrass science
Other records with the "Turfgrass science" Section
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| Source: | Crop Science. Vol. 53, No. 1, January 2013, p. 296-308. |
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| Publishing Information: | Madison, Wisconsin: Crop Science Society of America |
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| # of Pages: | 13 |
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| Related Web URL: | https://dl.sciencesocieties.org/publications/cs/abstracts/53/1/296
Last checked: 11/07/2016
Notes: Abstract only
https://dl.sciencesocieties.org/publications/cs/articles/53/1/296?show-t-f=tables&wrapper=no
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https://dl.sciencesocieties.org/publications/cs/articles/53/1/296?show-t-f=figures&wrapper=no
Last checked: 11/07/2016
Notes: Figures only |
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| Keywords: | TIC Keywords: Cultivar evaluation; Cytology; Genetic diversity; Germplasm; Ploidy; Stenotaphrum secundatum
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| Abstract/Contents: | "St. Augustinegrass [Stenotaphrum secundatum (Walt.) Kuntze] is a warm-season turfgrass broadly distributed across the southern United States. Here, we investigated genetic diversity and ploidy levels in publicly available plant introductions and cultivars of St. Augustinegrass as an aid to more effective use of these materials in breeding programs. Ploidy assignment of genotypes was problematic in some cases because of a lack of agreement between flow cytometryinferred ploidy level and chromosome counts indicating that DNA content of higher ploidy genotypes was not a simple multiple of the diploid genome. Cytological investigations indicated five different ploidy levels (diploid, triploid, aneuploid, tetraploid, and hexaploid) with chromosome numbers ranging from 2n = 2x = 18 to 2n = 6x = 54. Principal coordinate and cluster analyses separated genotypes into distinct groups that were mostly congruent with ploidy levels. Moreover, analysis of molecular variance results based on amplified fragment length polymorphism genotyping indicated that 46% of the total variation could be explained by differences between ploidy levels. A clear positive correlation was observed between ploidy level and number of scored bands, with polyploids showing an increased number of bands. Variation in chromosome number is an important source of genetic variation in S. secundatum, and knowledge of the genetic relationships among accessions of this species can be an important consideration for the proper utilization of this germplasm in applied cultivar development." |
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| Language: | English |
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| References: | 74 |
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| Note: | Pictures, b/w
Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Milla-Lewis, S. R., M. C. Zuleta, G. A. Van Esbroeck, K. H. Quesenberry, and K. E. Kenworthy. 2013. Cytological and molecular characterization of genetic diversity in Stenotaphrum. Crop Sci. 53(1):p. 296-308. |
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| DOI: 10.2135/cropsci2012.04.0234 |
| Web URL(s):
https://dl.sciencesocieties.org/publications/cs/articles/53/1/296
Last checked: 11/07/2016
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/cs/pdfs/53/1/296
Last checked: 11/07/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2211522a |
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