passages.id: split_1_test_3088_passage
passages.type: progene_text
passages.text: Analysis of the spatial distribution of RNAs in maize endosperm sections by in situ RT - PCR showed that , contrary to the conclusions made in an earlier study [ Kim et al. ( 2002 ) Plant Cell 14 : 655-672 ] , the zein and legumin-1 RNAs are not symmetrically distributed on the ER but , instead , targeted to specific ER subdomains .