Characterization of a new apple luteovirus identified by high-throughput sequencing

Table 1 Cultivars, symptoms and viruses of apple trees in a research block

Sample^a	Cultivar^b	Symptoms^c	Virus^d
Sample^a	Cultivar^b	Symptoms^c	ALV 1	ACLSV	ASGV	ASPV
PA2	Crimson Crisp	Trunk cracking, leaf yellowing	+	+	+	+
PA4	Crimson Crisp	Trunk cracking, leaf yellowing	+	–	+	+
PA5	Crimson Crisp	Trunk cracking, leaf yellowing	+	+	+	+
PA7	Crimson Crisp	Trunk cracking, leaf yellowing	+	–	+	–
PA8	Crimson Crisp	Trunk cracking, leaf yellowing	+	–	–	+
PA9	Crimson Crisp	Trunk cracking, leaf yellowing	+	–	–	–
PA11	Crimson Crisp	NS	+	+	+	+
PA12	Crimson Crisp	NS	+	+	+	+
PA13	Crimson Crisp	Bark cracking	+	+	+	+
PA14	Crimson Crisp	NS	+	+	+	+
PA15	Crimson Crisp	Upper branch browning	+	+	–	+
PA16	Crimson Crisp	NS	+	+	+	+
PA17	Crimson Crisp	Leaf distortion, tree dying	+	+	+	+
PA18	Fuji	Trunk cracking, leaf curl	+	–	+	–
PA19	Fuji	NS	–	–	–	–
PA20	Gala	Trunk cracking, small leaves	+	+	+	–
PA21	Fuji	NS	+	–	–	–
PA22	Gala	NS	+	+	–	+
PA23	Golden Delicious	Trunk cracking, leaf curl	+	–	+	–
PA24	Golden Delicious	NS	+	–	–	–

^aSamples PA2–9 were collected in June 2016
^bAll cultivars were grafted on M9 rootstock
^cNS mean that there were no obvious symptoms
^cALV 1 Apple luteovirus 1, ACLSV Apple chlorotic leaf spot virus, ASGV Apple stem grooving virus, ASPV Apple stem pitting virus

ISSN: 1743-422X