1606
In situ localization of PCP - A1 transcripts revealed that they accumulate specifically in pollen at the late binucleate / trinucleate stage of development rather than in the tapetum , which previously was taken to be the principal source of the pollen coat .
 GENE: PCP - A1 transcripts
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: PCP - A1 transcripts