test
node1
TO:0000357
plant growth and
development trait
node2
TO:0000928
plant structure
growth and
development trait
node1->node2
node3
TO:0000926
multi-tissue plant
structure growth and
development trait
node2->node3
node4
TO:0000653
seed growth and
development trait
node3->node4
node6
TO:0002661
seed maturation
node4->node6
node5
TO:0000387
plant trait
node5->node1
node7
CO_321:0000664
wheat grain filling
period trait
node6->node7