RT Journal Article SR Electronic T1 An ancient integration in a plant NLR is maintained as a trans-species polymorphism JF bioRxiv FD Cold Spring Harbor Laboratory SP 239541 DO 10.1101/239541 A1 Helen J. Brabham A1 Inmaculada Hernández-Pinzón A1 Samuel Holden A1 Jennifer Lorang A1 Matthew J. Moscou YR 2018 UL http://biorxiv.org/content/early/2018/01/08/239541.abstract AB