Changes from build 4 to 5

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Nucleotide composition (bp) of IRGSP build 5
| Chr | Total | A | T | G | C | N | GC (%) |
|---|---|---|---|---|---|---|---|
| 1 | 45,038,604 | 12,167,826 | 12,151,804 | 9,460,032 | 9,468,542 | 1,790,400 | 43.8 |
| 2 | 36,792,247 | 10,187,212 | 10,176,690 | 7,786,251 | 7,781,994 | 860,100 | 43.3 |
| 3 | 37,312,367 | 10,234,484 | 10,245,835 | 7,939,540 | 7,951,408 | 941,100 | 43.7 |
| 4 | 36,060,865 | 9,912,964 | 9,885,888 | 7,858,951 | 7,854,740 | 548,322 | 44.2 |
| 5 | 30,073,438 | 8,379,831 | 8,408,717 | 6,586,041 | 6,577,948 | 120,901 | 43.9 |
| 6 | 32,124,789 | 8,808,970 | 8,798,965 | 6,806,553 | 6,812,452 | 897,849 | 43.6 |
| 7 | 30,357,780 | 8,389,550 | 8,406,890 | 6,481,193 | 6,449,543 | 630,604 | 43.5 |
| 8 | 28,530,027 | 8,048,431 | 8,053,814 | 6,167,537 | 6,170,245 | 90,000 | 43.4 |
| 9 | 23,895,721 | 6,501,538 | 6,490,254 | 5,007,866 | 5,004,954 | 891,109 | 43.5 |
| 10 | 23,703,430 | 6,460,082 | 6,482,385 | 4,989,060 | 5,005,035 | 766,868 | 43.6 |
| 11 | 31,219,694 | 8,255,641 | 8,251,667 | 6,209,029 | 6,197,068 | 2,306,289 | 42.9 |
| 12 | 27,679,166 | 7,849,572 | 7,838,677 | 5,925,100 | 5,914,605 | 151,212 | 43.0 |
| Total | 382,788,128 | 105,196,101 | 105,191,586 | 81,217,153 | 81,188,534 | 9,994,754 | 43.6 |
