TY - JOUR AU - O’Brien, Ana M. Perez AU - Höller, Daniela AU - Boison, Solomon A. AU - Milanesi, Marco AU - Bomba, Lorenzo AU - Utsunomiya, Yuri T. AU - Carvalheiro, Roberto AU - Neves, Haroldo HR AU - da Silva, Marcos VB AU - VanTassell, Curtis P. AU - Sonstegard, Tad S. AU - Mészáros, Gábor AU - Ajmone-Marsan, Paolo AU - Garcia, Fernando AU - Sölkner, Johann PY - 2015 DA - 2015/04/17 TI - Low levels of taurine introgression in the current Brazilian Nelore and Gir indicine cattle populations JO - Genetics Selection Evolution SP - 31 VL - 47 IS - 1 AB - Nelore and Gir are the two most important indicine cattle breeds for production of beef and milk in Brazil. Historical records state that these breeds were introduced in Brazil from the Indian subcontinent, crossed to local taurine cattle in order to quickly increase the population size, and then backcrossed to the original breeds to recover indicine adaptive and productive traits. Previous investigations based on sparse DNA markers detected taurine admixture in these breeds. High-density genome-wide analyses can provide high-resolution information on the genetic composition of current Nelore and Gir populations, estimate more precisely the levels and nature of taurine introgression, and shed light on their history and the strategies that were used to expand these breeds. SN - 1297-9686 UR - https://doi.org/10.1186/s12711-015-0109-5 DO - 10.1186/s12711-015-0109-5 ID - O’Brien2015 ER -