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Table 1 Characteristics of 35 Helitron exemplars from 29 species

From: Characterization of a novel Helitron family in insect genomes: insights into classification, evolution and horizontal transfer

Group Average divergencea Length (bp)b Copies (% Genome)
Araneae (2/5)
Parasteatoda tepidariorum Ptep_Hel2Aa 0.322 2903 (11) 345 (0.069)
Nephila clavipes Ncla_Hel1Aa 0.532 293 (79) 4611 (0.055)
Blattaria (1/3)     
Blattella germanica Bger_Hel1Aa ND 664 (5) 91 (0.003)
Orthoptera (1/2)
Locusta migratoria Lmig_Hel1Aa 0.319 2080 (3) 86 (0.003)
Hemiptera (2/23)
Myzus persicae Mper_Hel1Fa 1.278 551 (30) 420 (0.067)
Homalodisca vitripennis Hvit_Hel1Ga 1.024 930 (165) 1914 (0.081)
Coleoptera (1/12)
Anoplophora glabripennis Agla_Hel1Aa 0.740 195 (17) 27 (0.001)
Lepidoptera (12/42)
Bombyx mori Bmor_Hel1    702
Bmor_Hel1Aa 15.672 249 (4) 8 (0.000)
Bmor_Hel1Ca 3.004 217 (67) 680 (0.037)
Spodoptera frugiperda Sfru_Hel1    3404
Sfru_Hel1Aa 0.852 196 (60) 495 (0.022)
Sfru_Hel1Ab 0.164 262 (86) 463 (0.028)
Sfru_Hel1Ac 0.016 378 (69) 1113 (0.096)
Mamestra configurata Mcon_Hel1Aa 0.663 223 (63) 1814 (0.071)
Melitaea cinxia Mcin_Hel1Ca 0.132 356 (62) 271 (0.025)
Pieris rapae Prap_Hel1Aa 0.054 447 (449) 1520 (0.276)
Papilio glaucus Pgla_Hel1Ga 0.467 165 (35) 461 (0.020)
Papilio xuthus Pxut_Hel1    2326
Pxut_Hel1Aa 0.069 296 (56) 796 (0.097)
Pxut_Hel1Ab 0.066 204 (153) 722 (0.060)
Papilio machaon Pmac_Hel1Ha 0.015 178 (20) 39 (0.002)
Operophtera brumata Obru_Hel1Ka 12.134 193 (30) 437 (0.013)
Chilo suppressalis Csup_Hel1    1760
Csup_Hel1Aa 0.010 162 (95) 103 (0.005)
Csup_Hel1Ab 0.018 257 (16) 95 (0.008)
Csup_Hel1Ea 0.034 195 (86) 752 (0.047)
Calephelis nemesis Cnem_Hel1Ea 0.919 271 (62) 5578 (0.481)
Calephelis virginiensis Cvir_Hel1Ea 2.171 269 (158) 2703 (0.231)
Diptera (4/110)
Bactrocera tryoni Btry_Hel1Ba 0.207 1291 (4) 1325 (0.330)
Bactrocera oleae Bole_Hel1Aa 0.302 1206 (4) 186 (0.056)
Phortica variegata Pvar_Hel1Da 0.205 343 (5) 38 (0.008)
Calliphora vicina Cvic_Hel1Ca 0.436 264 (52) 214 (0.012)
Hymenoptera (4/52)
Pseudomyrmex gracilis Pgra_Hel1Aa ND 748 (5) 83 (0.022)
Athalia rosae Aros_Hel1Aa ND 8065 (1) 4 (0.020)
Cotesia vestalis Cves_Hel1Aa 0.372 278 (76) 137 (0.020)
Polistes dominula Pdom_Hel1Ia 0.968 395 (3) 165 (0.031)
Phasmatodea (2/2)
Dryococelus australis Daus_Hel1Aa 0.077 667 (27) 1326 (0.026)
Timema cristinae Tcri_Hel1Aa 0.099 3435 (5) 105 (0.035)
  1. ND, not determined
  2. aAverage divergence is calculated between copies within a species
  3. bThe number in bracket is the number of copies used to reconstruct the consensus sequences