Research Index
Ongoing Research
Dr. James G. Harris

Hybrid Speciation
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Ploidy Levels in Braya
Evolution in Braya is partially due to polyploidy.

Ploidy Levels in Braya (n=7)
  2n=28 2n=42 2n=56 2n=70
B. thorild-wulffii X      
B. fernaldii     X  
B. longii     X  
B. glabella     X  
B. humilis X X X X
B. linearis   X    
B. alpina   X    
B. pilosa Unknown.  Perhaps diploid (2n=14).