986
Analysis of tobacco mRNA using the ACBF cDNA as probe showed that while ACBF mRNA was present in all tissues examined , the highest transcript accumulation occurred in stem tissues .
 GENE: ACBF cDNA; GENE: ACBF mRNA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: ACBF cDNA; GENE: ACBF mRNA