Plant Environment Ontology Sequence Types and Features Ontology Source
http://purl.obolibrary.org/obo/EO_0007532 http://purl.obolibrary.org/obo/SO_0000352 LOOM
http://purl.obolibrary.org/obo/EO_0007355 http://purl.obolibrary.org/obo/SO_0001027 LOOM