Genome wide scan for quantitative trait loci affecting tick resistance in cattle (Bos taurus x Bos indicus).

ABSTRACT:

Background

In tropical countries, losses caused by bovine tick Rhipicephalus (Boophilus) microplus infestation have a tremendous economic impact on cattle production systems. Genetic variation between Bos taurus and Bos indicus to tick resistance and molecular biology tools might allow for the identification of molecular markers linked to resistance traits that could be used as an auxiliary tool in selection programs. The objective of this work was to identify QTL associated with tick resistance/susceptibility in a bovine F2 population derived from the Gyr (Bos indicus) x Holstein (Bos taurus) cross.

Results

Through a whole genome scan with microsatellite markers, we were able to map six genomic regions associated with bovine tick resistance. For most QTL, we have found that

SUBMITTER: Machado MA 

PROVIDER: S-EPMC2880304 | biostudies-literature | 2010 Apr

REPOSITORIES: biostudies-literature