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Title: AFLP-BASED GENETIC DIVERSITY AMONG CULTIVATED RYE GENOTYPES

Author
item CHIKMAWATI, T - UNIV OF MISSOURI
item MIFTAHUDIN - UNIV OF MISSOURI
item Gustafson, J

Submitted to: American Society of Agronomy Meetings
Publication Type: Abstract Only
Publication Acceptance Date: 11/2/2003
Publication Date: 11/20/2003
Citation: Chikmawati, T., Miftahudin, Gustafson, J.P. 2003. Aflp-based genetic diversity among cultivated rye genotypes [abstract]. American Society of Agronomy. p. C-8310001.

Interpretive Summary:

Technical Abstract: Amplified Fragment Length Polymorphism (AFLP) data were utilized to analyze the genetic diversity of 114 accessions of cultivated rye representing nine regions from throughout the world. Cultivated rye exhibited a high level genetic diversity, however, it had a low level of genetic differentiation. The total genetic diversity of the cultivated rye varied in each region ranging from 0.1843 to 0.3089. Within cultivated rye, populations from North America showed the highest total genetic diversity, while populations from East Asia showed the lowest. Genetic relationship analysis using two different clustering methods showed that the 114 accessions of cultivated rye clustered together, excluding all weedy and wild-rye populations. The cultivated ryes had a closer relationship to weedy than to wild ryes. These results allowed us to consider that weedy rye is the immediate ancestor of the cultivated rye. Clustering of cultivated rye did not separate into groups, and no clear interrelationships could be descerned between accessions and geographic origin. However, the information gained on rye genetic diversity based on AFLP analyses can be used to facilitate rye germplasm management and conservation.