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Published online 24 February 2006
Published in Crop Sci 46:917-926 (2006)
© 2006 Crop Science Society of America
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Genetic Analyses of Chinese Cynodon Accessions by Flow Cytometry and AFLP Markers

Y. Q. Wua,*, C. M. Taliaferrob, G. H. Baid, D. L. Martinc, J. A. Andersonc, M. P. Andersonb and R. M. Edwardsb

a USDA-ARS, Plant Science Research Lab., 1301 N. Western Rd., Stillwater, OK 74075-2714
b Dep. of Plant and Soil Sci., Oklahoma State Univ., Stillwater, OK 74078
c Dep. of Horticulture and Landscape Architecture, Oklahoma State Univ., Stillwater, OK 74078
d Plant Science and Entomology Research Unit, USDA-ARS and Dep. of Agronomy, Kansas State Univ., Manhattan, KS 66506


Figure 1
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  		Fig. 1. A map showing the Chinese Cynodon collection locations and their ploidy.

 

Figure 2
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  		Fig. 2. Photomicrographs of somatic chromosomes of the four observed ploidy levels in Chinese Cynodon accessions. (a) A12260, 2n = 3x = 27; (b) A12257, 2n = 4x = 36; (c) A12348, 2n = 5x = 45; (d) A12319, 2n = 6x = 54.

 

Figure 3
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  		Fig. 3. Dendrogram of 119 Chinese Cynodon accessions plus Tifway, Tifgreen and Tifton 10 produced by unweighted pair group mean algorithm clustering method based on the genetic similarity matrix derived from 466 AFLP markers. Bootstrap values are displayed.

 

Figure 4
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  		Fig. 4. Principal coordinate plot indicating variation pattern and geographic origin for the 119 Chinese Cynodon accessions and three cultivars using 466 AFLP markers. Notations: W, E, and S stand for the west, east, and south regions, respectively. Ploidy level is also indicated if other than 4x.

 




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