passages.id: split_4_test_3431_passage
passages.type: progene_text
passages.text: Apple chlorotic leaf spot virus ( ACLSV ) is the type species of the genus Trichovirus and its single - stranded , plus-sense RNA genome encodes a 216 kDa protein ( P216 ) involved in replication , a 50 kDa movement protein ( P50 ) and a 21 kDa coat protein ( CP ) .