4610
A selectable marker for transformation was constructed by transcriptional fusion of a Ustilago maydis heat shock gene promoter with the hygromycin B phosphotransferase gene of Escherichia coli .
 GENE: Ustilago maydis heat shock gene promoter; GENE: hygromycin B phosphotransferase gene of Escherichia coli
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: Ustilago maydis heat shock gene promoter; GENE: hygromycin B phosphotransferase gene of Escherichia coli