test
node1
TO:0001071
shoot axis tuber
yield
node2
CO_343:0000355
yam big size tubers
per plant trait
node1->node2
node3
TO:0000387
plant trait
node4
TO:0000371
yield trait
node3->node4
node5
TO:0000327
shoot system yield
trait
node4->node5
node5->node1