Tripsacum mapping project - progress report

--C.A. Blakey, C.L. Dewald* and E.H. Coe, Jr.

*USDA-ARS, Woodward, OK.

As of January 1992, data for the molecular map under construction in Tripsacum dactyloides are summarized in the following table:
 
  RFLP Probe DNA Source
  Maize   T. dactyloides
TOTAL NUMBER OF PROBES SCREENED 215   73
Polymorphic in T. dactyloides 115   42
     in maize (Tx303/Co159)     30
Hybridization, non-polymorphic      
     in T. dactyloides 90   31
No hybridization to T. dactyloides 33   --
     to maize --   15
TOTAL NUMBER OF RFLP LINKAGE GROUPS   19  
     of 2 or more markers      
Mapped markers in linkage groups   67  
     Molecular 52   15
     Phenotypic --   1
Unlinked mapped markers 4   4

Please Note: Notes submitted to the Maize Genetics Cooperation Newsletter may be cited only with consent of the authors

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