Table 2.

Transposon classification in Repbase

Group	Superfamily/clade
DNA transposon	Academ ^a, Crypton ^a (CryptonA ^a , CryptonF ^a , CryptonI ^a , CryptonS ^a , CryptonV ^a ), Dada ^a, EnSpm/CACTA, Ginger1 ^a, Ginger2 ^a, Harbinger, hAT, Helitron, IS3EU ^a, ISL2EU, Kolobok, Mariner/Tc1, Merlin, MuDR, Novosib, P, piggyBac, Polinton, Sola ^a (Sola1 ^a, Sola2 ^a, Sola3 ^a ), Transib, Zator ^a, Zisupton ^a
LTR retrotransposon	BEL, Copia, DIRS, Gypsy, ERV1, ERV2, ERV3, ERV4 ^a, Lentivirus ^a
Non-LTR retrotransposon	Ambal ^a, CR1, CRE, Crack, Daphne, Hero, I, Ingi, Jockey, Kiri ^a, L1, L2, L2A, L2B, Loa, NeSL, Nimb, Outcast, Penelope, Proto1, Proto2, R1, R2, R4, RandI/Dualen, Rex1, RTE, RTETP, RTEX, Tad1, Tx1, Vingi ^a
Non-LTR retrotransposon	SINE (SINE1/7SL, SINE2/tRNA, SINE3/5S, SINE4 ^a , SINEU ^a )

^aSuperfamilies/clades added since our latest classification reports [24, 28]