Reconstructing the Genomic Architecture of Ancestral Mammals: Lessons From Human, Mouse, and Rat Genomes

Table 1.

From Alignments to Two-Way Synteny Blocks






Human—mouse



Human—rat



Mouse—rat
# PatternHunter alignments 2,155,195 2,202,096 14,612,360
# Two-way anchors 642,542 598,632 1,379,600
300 kb two-way synteny blocks:
   # Blocks 394 417 162
   # Macro-rearrangements 340 344 123
   # Micro-rearrangements 3,744 4,116 7,421
   # Breakpoint region re-uses 265 254 77
   # Breakpoints per breakpoint region H: 1.64—1.83 H: 1.59—1.75 M: 1.46—1.73
      (with chromosome ends-w/o chromosome ends) M: 1.64—1.81 R: 1.59—1.74 R: 1.46—1.74
   Mean synteny block length (kb) H: 6,851 H: 6,400 M: 15,288
M: 6,133 R: 6,108 R: 16,348
   Maximum synteny block length (kb) H: 79,289 H: 55,358 M: 157,726
M: 64,401 R: 49,813 R: 169,760
   Total synteny block length (kb) H: 2,699,430 H: 2,668,876 M: 2,476,643
M: 2,416,552 R: 2,546,960 R: 2,648,380
   Total synteny block length (% of genome) H: 89.40% H: 88.39% M: 96.10%
M: 93.76% R: 93.64% R: 97.37%
   Mean breakpoint region length (kb) H: 569 H: 610 M: 254
M: 253 R: 393 R: 406
   Maximum breakpoint region length (kb) H: 26,092 H: 26,110 M: 3,549
M: 6,469 R: 7,555 R: 4,057
   Total breakpoint region length (kb) H: 211,214 H: 240,150 M: 36,103
M: 94,731 R: 155,580 R: 57,251
   Total breakpoint region length (% of genome) H: 6.99% H: 7.95% M: 1.40%
M: 3.68% R: 5.72% R: 2.10%
1 Mb two-way synteny blocks:
   # Blocks 280 278 105
   # Macro-rearrangements 246 243 84
   # Micro-rearrangements 4,270 4,796 8,216
   # Breakpoint region re-uses 193 190 56
   # Breakpoints per breakpoint region H: 1.65—1.91 H: 1.64—1.91 M: 1.50—1.98
      (with chromosome ends-w/o chromosome ends) M: 1.65—1.89 R: 1.64—1.89 R: 1.50—2.00
   Mean synteny block length (kb) H: 9,821 H: 9,820 M: 23,876
M: 8,682 R: 9,265 R: 25,457
   Maximum synteny block length (kb) H: 79,917 H: 88,198 M: 157,726
M: 64,954 R: 84,258 R: 169,760
   Total synteny block length (kb) H: 2,749,840 H: 2,729,972 M: 2,507,026
M: 2,430,879 R: 2,575,550 R: 2,672,970
   Total synteny block length (% of genome) H: 91.07% H: 90.41% M: 97.27%
M: 94.32% R: 94.69% R: 98.27%
   Mean breakpoint region length (kb) H: 605 H: 680 M: 58
M: 315 R: 488 R: 393
   Maximum breakpoint region length (kb) H: 25,096 H: 25,821 M: 3,340
M: 6,073 R: 43,357 R: 10,614
   Total breakpoint region length (kb) H: 155,553 H: 172,629 M: 4,905
M: 81,913 R: 125,515 R: 32,994
   Total breakpoint region length (% of genome) H: 5.15% H: 5.72% M: 0.19%

M:
3.18%
R:
4.61%
R:
1.21%
  • The information in this table only considers two species at a time; alignments with the third species are not considered. Quantities that differ between the two species are marked with H, R, or M, to denote the separate measurements. The lengths of breakpoint regions include those between synteny blocks, and exclude those at chromosome ends.

This Article

  1. Genome Res. 14: 507-516

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