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Chicken Genome Assembly GRCg6a

Information on tiling path files (TPFs) for the assembly is available at TPF Overview.

Other assembly versions:
Chromosome lengths are calculated by summing the length of the placed scaffolds and estimated gaps.
Chromosome Total length (bp) GenBank accession RefSeq accession
1 197,608,386 CM000093.5 NC_006088.5
2 149,682,049 CM000094.5 NC_006089.5
3 110,838,418 CM000095.5 NC_006090.5
4 91,315,245 CM000096.5 NC_006091.5
5 59,809,098 CM000097.5 NC_006092.5
6 36,374,701 CM000098.5 NC_006093.5
7 36,742,308 CM000099.5 NC_006094.5
8 30,219,446 CM000100.5 NC_006095.5
9 24,153,086 CM000101.5 NC_006096.5
10 21,119,840 CM000102.5 NC_006097.5
11 20,200,042 CM000103.5 NC_006098.5
12 20,387,278 CM000104.5 NC_006099.5
13 19,166,714 CM000105.5 NC_006100.5
14 16,219,308 CM000106.5 NC_006101.5
15 13,062,184 CM000107.5 NC_006102.5
16 2,844,601 CM000108.5 NC_006103.5
17 10,762,512 CM000109.5 NC_006104.5
18 11,373,140 CM000110.5 NC_006105.5
19 10,323,212 CM000111.5 NC_006106.5
20 13,897,287 CM000112.5 NC_006107.5
21 6,844,979 CM000113.5 NC_006108.5
22 5,459,462 CM000114.5 NC_006109.5
23 6,149,580 CM000115.5 NC_006110.5
24 6,491,222 CM000116.5 NC_006111.5
25 3,980,610 CM000124.5 NC_006112.4
26 6,055,710 CM000117.5 NC_006113.5
27 8,080,432 CM000118.5 NC_006114.5
28 5,116,882 CM000119.5 NC_006115.5
30 1,818,525 CM003637.2 NC_028739.2
31 6,153,034 CM003638.2 NC_028740.2
32 725,831 CM000120.4 NC_006119.4
33 7,821,666 CM000123.5 NC_008465.4
W 6,813,114 CM000121.5 NC_006126.5
Z 82,529,921 CM000122.5 NC_006127.5
Total lengths are calculated by summing the length of the sequenced bases and estimated gaps.
Chromosome All scaffolds Placed scaffolds Unplaced scaffolds
1 197,677,740 197,608,386 69,354
2 149,682,049 149,682,049 0
3 110,854,228 110,838,418 15,810
4 91,315,245 91,315,245 0
5 59,809,098 59,809,098 0
6 36,428,957 36,374,701 54,256
7 36,742,308 36,742,308 0
8 30,219,446 30,219,446 0
9 24,181,049 24,153,086 27,963
10 21,119,840 21,119,840 0
11 20,200,042 20,200,042 0
12 20,387,278 20,387,278 0
13 19,168,871 19,166,714 2,157
14 16,220,073 16,219,308 765
15 13,064,218 13,062,184 2,034
16 2,994,104 2,844,601 149,503
17 10,762,512 10,762,512 0
18 11,373,140 11,373,140 0
19 10,324,343 10,323,212 1,131
20 13,897,287 13,897,287 0
21 6,844,979 6,844,979 0
22 5,460,380 5,459,462 918
23 6,202,910 6,149,580 53,330
24 6,491,222 6,491,222 0
25 3,982,494 3,980,610 1,884
26 6,055,710 6,055,710 0
27 8,080,432 8,080,432 0
28 5,118,401 5,116,882 1,519
30 1,818,525 1,818,525 0
31 6,185,160 6,153,034 32,126
32 725,831 725,831 0
33 7,821,848 7,821,666 182
W 7,488,053 6,813,114 674,939
Z 82,545,508 82,529,921 15,587
Un 14,105,369 na 14,105,369
Genome 1,065,348,650 1,050,139,823 15,208,827
N50 is a measure of contiguity. 50% of the bases reside in a scaffold of this length or greater.
Chromosome All scaffolds Placed scaffolds Unplaced scaffolds
1 26,445,461 26,445,461 21,511
2 77,922,350 77,922,350 0
3 88,985,370 88,985,370 6,272
4 72,053,441 72,053,441 0
5 42,721,696 42,721,696 0
6 20,451,862 20,451,862 10,928
7 28,910,775 28,910,775 0
8 20,392,703 20,392,703 0
9 23,063,781 23,063,781 27,963
10 20,619,840 20,619,840 0
11 16,969,298 16,969,298 0
12 20,387,278 20,387,278 0
13 18,666,714 18,666,714 2,157
14 15,478,998 15,478,998 765
15 13,062,184 13,062,184 2,034
16 1,519,699 1,519,699 149,503
17 10,262,512 10,262,512 0
18 11,373,140 11,373,140 0
19 10,323,212 10,323,212 1,131
20 13,897,287 13,897,287 0
21 6,844,979 6,844,979 0
22 3,070,996 3,070,996 918
23 6,149,580 6,149,580 16,157
24 6,491,222 6,491,222 0
25 576,389 576,389 1,884
26 5,555,710 5,555,710 0
27 8,008,924 8,008,924 0
28 5,116,882 5,116,882 1,519
30 379,495 379,495 0
31 6,153,034 6,153,034 11,305
32 408,423 408,423 0
33 1,769,446 1,769,446 182
W 6,813,114 6,813,114 16,320
Z 11,090,205 11,090,205 15,587
Un 1,222,195 na 1,222,195
Genome 20,785,086 20,785,086 900,507
Ungapped lengths are calculated by summing the length of sequenced bases only. 'Ns' are excluded.
Chromosome All scaffolds Placed scaffolds Unplaced scaffolds
1 197,166,990 197,097,636 69,354
2 149,178,239 149,178,239 0
3 110,352,808 110,336,998 15,810
4 90,814,345 90,814,345 0
5 59,308,188 59,308,188 0
6 35,925,747 35,871,491 54,256
7 36,241,908 36,241,908 0
8 29,717,146 29,717,146 0
9 23,680,539 23,652,576 27,963
10 20,618,240 20,618,240 0
11 19,699,342 19,699,342 0
12 20,385,978 20,385,978 0
13 18,666,071 18,663,914 2,157
14 15,718,573 15,717,808 765
15 13,062,518 13,060,484 2,034
16 2,491,684 2,342,281 149,403
17 10,262,412 10,262,412 0
18 11,371,440 11,371,440 0
19 10,323,243 10,322,112 1,131
20 13,897,287 13,897,287 0
21 6,844,979 6,844,979 0
22 4,959,470 4,958,552 918
23 6,201,810 6,148,480 53,330
24 6,490,922 6,490,922 0
25 3,478,634 3,476,750 1,884
26 5,555,310 5,555,310 0
27 8,076,222 8,076,222 0
28 5,118,201 5,116,682 1,519
30 1,815,385 1,815,385 0
31 6,178,160 6,146,034 32,126
32 725,311 725,311 0
33 7,815,208 7,815,026 182
W 7,246,520 6,571,581 674,939
Z 82,087,991 82,072,404 15,587
Un 14,087,369 na 14,087,369
Genome 1,055,564,190 1,040,373,463 15,190,727
Spanned gaps are found within scaffolds and there is some evidence suggesting linkage between the two sequences flanking the gap. Unspanned gaps are found between scaffolds and there is no evidence of linkage.
Spanned gaps Unspanned gaps
Chromosome   All scaffolds Placed scaffolds Unplaced scaffolds All scaffolds Placed scaffolds Unplaced scaffolds
1 106 106 0 16 16 0
2 38 38 0 2 2 0
3 14 14 0 3 3 0
4 9 9 0 1 1 0
5 9 9 0 2 2 0
6 32 32 0 2 2 0
7 4 4 0 1 1 0
8 23 23 0 1 1 0
9 5 5 0 2 2 0
10 16 16 0 1 1 0
11 7 7 0 1 1 0
12 13 13 0 0 0 0
13 28 28 0 1 1 0
14 15 15 0 1 1 0
15 17 17 0 0 0 0
16 24 23 1 3 3 0
17 1 1 0 1 1 0
18 17 17 0 0 0 0
19 11 11 0 0 0 0
20 0 0 0 0 0 0
21 0 0 0 0 0 0
22 9 9 0 2 2 0
23 11 11 0 0 0 0
24 3 3 0 0 0 0
25 38 38 0 7 7 0
26 4 4 0 1 1 0
27 42 42 0 1 1 0
28 2 2 0 0 0 0
30 31 31 0 4 4 0
31 70 70 0 0 0 0
32 5 5 0 2 2 0
33 66 66 0 4 4 0
W 24 24 0 0 0 0
Z 4 4 0 9 9 0
Un 180 na 180 0 na 0
Genome 878 697 181 68 68 0
Scaffold counts.
Chromosome All scaffolds Placed scaffolds Unplaced scaffolds
1 24 17 7
2 3 3 0
3 8 4 4
4 2 2 0
5 3 3 0
6 8 2 6
7 2 2 0
8 2 2 0
9 3 2 1
10 1 1 0
11 2 2 0
12 1 1 0
13 2 1 1
14 3 2 1
15 2 1 1
16 4 3 1
17 1 1 0
18 1 1 0
19 2 1 1
20 1 1 0
21 1 1 0
22 4 3 1
23 7 1 6
24 1 1 0
25 9 8 1
26 1 1 0
27 2 2 0
28 2 1 1
30 5 5 0
31 4 1 3
32 3 3 0
33 6 5 1
W 53 1 52
Z 11 10 1
Un 340 na 340
Genome 524 95 429
General
Assembly nameGRCg6a
Release date2018-03-27
Assembly typehaploid
Release typemajor
Assembly units1
Total bases1,065,348,650
Total non-N bases1,055,564,190
Primary assembly N5020,785,086
Regions
Total regions0
Regions with alternate loci0
Regions with FIX patches0
Regions with NOVEL patches0
Regions as PAR0
Alternate loci and patches
Alternate loci0
Alternate loci aligned to primary assembly0
FIX patches0
FIX patches aligned to primary assembly0
NOVEL patches0
NOVEL patches aligned to primary assembly0