Construction of a dense SNP map for bovine chromosome 6 to assist the assembly of the bovine genome sequence.

Construction of a dense SNP map for bovine chromosome 6 to assist the assembly of the bovine genome sequence. Research Abstract Details 

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Construction of a dense SNP map for bovine chromosome 6 to assist the assembly of the bovine genome sequence. Abstract Text:

H Nilsen,B Hayes,P R Berg,A Roseth,K K Sundsaasen,K Nilsen,S Lien,

A linkage map was constructed for bovine chromosome 6 (BTA6), using 399 single nucleotide polymorphisms (SNPs) detected primarily from PCR-resequencing. The efficiency of SNP detection was highly dependent on the source of sequence information chosen for primer design (BAC-end sequences, introns or promoters). The SNPs were used to build a linkage map comprising 104 cM on BTA6. The SNP order in the linkage map corresponded very well with radiation hybrid (RH) maps available for BTA6 as well as with expected positions in the human comparative map, but diverged significantly from the current assembly of the bovine genome (Btau_3.1). When performing linkage analysis with the marker order suggested from the Btau_3.1 we observed an expansion of the genetic map from 104 cM to 137 cM, strongly suggesting a reordering of scaffolds in the current version of the bovine genome assembly. The extent of LD on BTA6 was evaluated by calculating the average r(2) for SNP pairs separated by given distances. The decline of LD was rapid with distance, such that r(2) was 0.1 at 100 kb. Our results indicate that linkage mapping will be a valuable source of information for correcting errors in the current bovine assembly. These errors were sufficiently frequent to be of concern for the accuracy of mapping QTL with panels of SNPs whose positions are based on the current assembly.

Construction of a dense SNP map for bovine chromosome 6 to assist the assembly of the bovine genome sequence. Publishing Authors By Initials

H Nilsen,B Hayes,PR Berg,A Roseth,KK Sundsaasen,K Nilsen,S Lien,

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Construction of a dense SNP map for bovine chromosome 6 to assist the assembly of the bovine genome sequence. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Animal genetics

VOLUME: 39

Page Numbers: 97-104

Journal Abbreviation: Anim. Genet.

ISSN: 1365-2052

DAY: 26

MONTH: 02

YEAR: 2008

Construction of a dense SNP map for bovine chromosome 6 to assist the assembly of the bovine genome sequence. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Construction of a dense SNP map for bovine chromosome 6 to assist the assembly of the bovine genome sequence.

AFFILIATION: Department of Animal and Aquacultural Sciences, The Norwegian University of Life Sciences, N-1432 Aas, Norway.

Country: England

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MEDLINETA: Anim Genet

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