Jaccard similarity was used as a distance metric to cluster libraries
by transcript composition. Similarity
was calculated as the
complement of complementarity,
, as described in
Section 3.3.4
and
[32]. Other libraries used to calculate complementarity
were described in Section 3.3.4,
including the MHAM mycorrhizal root library (Harrison, unpublished),
the DSIR Phytophthora medicaginis-infected root library (Vance,
unpublished), KV0 axenic and KVnod nodulating root (pooled from KV1,
KV2, and KV3) libraries (VandenBosch, unpublished), and Noble
Foundation (NF) root, stem, leaf, and nodulating root libraries
(May, unpublished).