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Table 2 Information on repeat elements identified from sequenced bird genomes

From: Whole genome sequencing of the black grouse (Tetrao tetrix): reference guided assembly suggests faster-Z and MHC evolution

  Black grouse Chicken Turkey Zebra finch
Total length of repeats (Mb) 64.7 111.2 60.9 97.5
Percentage in genome (%) 6.34 10.63 5.74 7.91
Number of specific elements     
 SINEs 4869 5207 4745 5512
 LINEs 151426 183599 140717 133331
 L2/CR1/Rex 151298 183464 140575 126284
 LTR elements 17792 32080 6325 78514
 Retroviral 17733 32015 6266 78185
 DNA transposons 19300 21971 3919 4391
 Small RNA 1440 1806 1609 1897
 Satellites 1433 3816 1247 488
 Simple repeats 50145 133371 83093 123377
 Low complexity 65102 143762 125682 196866
 Unclassified 2017 2222 2028 2334