Single linkage group per chromosome genetic linkage map for the horse, based on two three-generation, full-sibling, crossbred horse reference families.
A genetic linkage map of the horse consisting of 742 markers, which comprises a single linkage group for each of the autosomes and the X chromosome, is presented. The map has been generated from two three-generation full-sibling reference families, sired by the same stallion, in which there are 61 individuals in the F2 generation. Each linkage group has been assigned to a chromosome and oriented with reference to markers mapped by fluorescence in situ hybridization. The average interval between markers is 3.7 cM and the linkage groups collectively span 2772 cM. The 742 markers comprise 734 microsatellite and 8 gene-based markers. The utility of the microsatellite markers for comparative mapping has been significantly enhanced by comparing their flanking sequences with the human genome sequence; this enabled conserved segments between human and horse to be identified. The new map provides a valuable resource for genetically mapping traits of interest in the horse.
Swinburne
June E
JE
Animal Health Trust, Newmarket, Suffolk CB8 7UU, UK.
Boursnell
Mike
M
Hill
Gemma
G
Pettitt
Louise
L
Allen
Twink
T
Chowdhary
Bhanu
B
Hasegawa
Telhisa
T
Kurosawa
Masahiko
M
Leeb
Tosso
T
Mashima
Suguru
S
Mickelson
James R
JR
Raudsepp
Terje
T
Tozaki
Teruaki
T
Binns
Matthew
M
D000818:Animals; D002875:Chromosomes / Q000235:genetics*; D003433:Crosses, Genetic; D008040:Genetic Linkage; D005819:Genetic Markers / Q000235:genetics; D015698:Genomic Library; D006736:Horses / Q000235:genetics*; D006801:Humans; D018895:Microsatellite Repeats / Q000235:genetics*; D010375:Pedigree; D019655:Quantitative Trait, Heritable
D005819:Genetic Markers