http://genome-mirror.bscb.cornell.edu/cgi-bin/hgTracks?hgsid=1230&chromInfoPage=
hg18

Sequence name	Length (bp) including gaps
chr1	247,249,719
chr1_random	1,663,265
chr2	242,951,149
chr2_random	185,571
chr3	199,501,827
chr3_random	749,256
chr4	191,273,063
chr4_random	842,648
chr5	180,857,866
chr5_h2_hap1	1,794,870
chr5_random	143,687
chr6	170,899,992
chr6_cox_hap1	4,731,698
chr6_qbl_hap2	4,565,931
chr6_random	1,875,562
chr7	158,821,424
chr7_random	549,659
chr8	146,274,826
chr8_random	943,810
chr9	140,273,252
chr9_random	1,146,434
chr10	135,374,737
chr10_random	113,275
chr11	134,452,384
chr11_random	215,294
chr12	132,349,534
chr13	114,142,980
chr13_random	186,858
chr14	106,368,585
chr15	100,338,915
chr15_random	784,346
chr16	88,827,254
chr16_random	105,485
chr17	78,774,742
chr17_random	2,617,613
chr18	76,117,153
chr18_random	4,262
chr19	63,811,651
chr19_random	301,858
chr20	62,435,964
chr21	46,944,323
chr21_random	1,679,693
chr22	49,691,432
chr22_h2_hap1	63,661
chr22_random	257,318
chrX	154,913,754
chrX_random	1,719,168
chrY	57,772,954
chrM	16,571
Total	3,107,677,273

Assembly Details

The NCBI Build 36.1 reference sequence is considered to be "finished", a technical term indicating that the sequence is highly accurate (with fewer than one error per 10,000 bases) and highly contiguous (with the only remaining gaps corresponding to regions whose sequence cannot be reliably resolved with current technology). Future work on the reference sequence will focus on improving accuracy and reducing gaps in the sequence. Statistics for the Build 36.1 assembly can be found on the NCBI Build 36.1 Statistics web page.

This assembly contains four alternate haplotype regions:

• chr22_h2_hap1 -- an alternate chromosome 22 assembly that contains the CYP2D6 gene (NT_113959.1). CYP2D6 is deleted in the reference assembly.
• chr5_h2_hap1 -- a chromosome 5 alternate assembly of the SMN1 gene region (NT_113801.1, NT_113802.1).
• chr6_cox_hap1 -- an A1-B8-DR3 alternate haplotype assembly of the chromosome 6 MHC region based on sequence data from the COX library (NT_113891.1).
• chr6_qbl_hap2 -- an A26-B18-DR3 alternate haplotype assembly of the chromosome 6 MHC region based on sequence data from the QBL library (NT_113892.1, NT_113893.1, NT_113894.1, NT_113895.1, NT_113896.1, NT_113897.1).

See the Wellcome Trust Sanger Institute MHC Haplotype Project web site for additional information on the chr6 alternate haplotype assemblies.

The Y chromosome in this assembly contains two pseudoautosomal regions (PARs) at chrY:1-2709520 and chrY:57443438-57772954. These sequences were taken from the corresponding regions in the X chromosome and are exact duplications of the X chromosome sequences at chrX:1-2709520 and chrX:154584237-154913754, respectively.

For further information on NCBI Build 36.1, see the NCBI Build 36.1 release notes.

Bulk downloads of the data are available from the UCSC downloads server via ftp or http. We recommend that you use ftp or rsync for downloading large or multiple files.

The hg18 annotation tracks were generated by UCSC and collaborators worldwide. See the Credits page for a detailed list of the organizations and individuals who contributed to this release.

 

http://genome-mirror.bscb.cornell.edu/cgi-bin/hgTracks?hgsid=16&chromInfoPage=

rheMac2

Sequence name	Length (bp) including gaps
chr1	228,252,215
chr2	189,746,636
chr3	196,418,989
chr4	167,655,696
chr5	182,086,969
chr6	178,205,221
chr7	169,801,366
chr8	147,794,981
chr9	133,323,859
chr10	94,855,758
chr11	134,511,895
chr12	106,505,843
chr13	138,028,943
chr14	133,002,572
chr15	110,119,387
chr16	78,773,432
chr17	94,452,569
chr18	73,567,989
chr19	64,391,591
chr20	88,221,753
chrX	153,947,521
chrUr	440,886
Total	2,864,106,071