Alias and other names referred to the SWIRM domain-containing proteinsin Arabidopsis thaliana and Medicago truncatula were assigned by http://www.arabidopsis.org/ and http://www.jcvi.org/cgi-bin/medicago/overview.cgi. The names of SWIRM domain-containing proteins in Oryza sativa, Physcomitrella patens, Populus trichocarpa, and Zea mays are assigned by chromatin database (http://www.chromdb.org).