Average nucleotide diversity between the 53 Rosaceae Rdr1 -TNLs and between the three flanking genes as well as the AGT gene. The Rosaceae TNLs and their domains are characterized by larger mean π values than the flanking genes and AGT (alanine:glyoxylate aminotransferase). AGT is present as an arbitrarily selected gene, which occurs as a single copy gene in most plant genomes.
Terefe-Ayana et al. BMC Genomics 2012 13:409 doi:10.1186/1471-2164-13-409