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Through Southern blot analyses of DNA from backcross and cogenic mice , recombinant inbred strains , and somatic cell hybrids , the genetic loci that produce the cyclin B1 - related sequences ( designated loci Cycb1 - rs1 to Cycb1 - rs9 ) were mapped on mouse chromosomes 5 , 1 , 17 , 4 , 14 , 13 , 7 , X , and 8 , respectively .
 cyclin B1 - related sequences, loci Cycb1 - rs1, Cycb1 - rs9
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 cyclin B1 - related sequences, loci Cycb1 - rs1, Cycb1 - rs9