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| Web URL(s): | http://www.jstor.org/stable/pdfplus/2441382.pdf
Last checked: 07/17/2014
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http://www.jstor.org/stable/2441382
Last checked: 08/19/2014
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Taylor, Ronald J.;
McCoy, Gene A. |
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| Author Affiliation: | McCoy: Plant Breeder, Arnold-Thomas Seed Service, Fresno, California |
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| Title: | Proposed origin of tetraploid species of crested wheatgrass based on chromatographic and karyotypic analyses |
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| Source: | American Journal of Botany. Vol. 60, No. 6, July 1973, p. 576-583. |
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| Publishing Information: | Columbus, Ohio: Botanical Society of America |
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| # of Pages: | 8 |
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| Related Web URL: | http://www.jstor.org/stable/info/2441382
Last checked: 07/17/2014
Notes: Abstract only |
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| Keywords: | TIC Keywords: Agropyron desertorum; Taxonomy; Agropyron
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| Abstract/Contents: | "Chromatographic techniques were used and the results were correlated with karyotypic studies in an attempt to determine the origin of five tetraploid 'species' of crested wheatgrass, Agropyron desertorum, A. fragile, A. imbricatum, A. sibiricum, and A. pectiniforme. Chromatograms of phenolic extracts of all tetraploid taxa and two diploids, A. imbricatum and A. pectiniforme-Fairway type, were developed using two-dimensional paper chromatography, and comparative analyses were made. The analyses were of three types: one in which the pigments were quantified and assigned weighted values; the second a qualitative analysis in which only the presence or absence of the pigments was considered; the third, a similar qualitative analysis of hydrolysates. Similarity indices were computed for all combinations of taxa in each of the comparative chromatographic analyses, and phenograms were prepared. The two diploid taxa were chromatographically distinct, and all tetraploid forms were intermediate with the exception of A. pectiniforme, which exhibited the same phenolic profile as the diploid A. pectiniforme-Fairway type, and two of its colchicine-induced tetraploids. From these data it is postulated that A. pectiniforme is a natural autopolyploid, and the other tetraploids included herein were derived through hybridization of A. imbricatum and A. pectiniforme-Fairway type, with subsequent allopolyploidy. This is in accord with karyotypic studies of McCoy and Law (unpublished)." |
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| Language: | English |
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| References: | 10 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Taylor, R. J., and G. A. McCoy. 1973. Proposed origin of tetraploid species of crested wheatgrass based on chromatographic and karyotypic analyses. Amer. J. Bot. 60(6):p. 576-583. |
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| Web URL(s):
http://www.jstor.org/stable/pdfplus/2441382.pdf
Last checked: 07/17/2014
Requires: PDF Reader
Access conditions: Item is within a limited-access website
http://www.jstor.org/stable/2441382
Last checked: 08/19/2014
Access conditions: Item is within a limited-access website |
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MSU catalog number: QK 1 .B345 |
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