11659
However , plasmids carrying the yeast TyrRS gene could not be stably maintained in E . coli .
 GENE: yeast TyrRS gene
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: yeast TyrRS gene 
Answer:
 GENE: yeast TyrRS gene