Horizontal gene transfer in Histophilus somni and its role in the evolution of pathogenic strain 2336, as determined by comparative genomic analyses. - Siddaramappa S; Challacombe JF; Duncan AJ; Gillaspy AF; Carson M; Gipson J; Orvis J; Zaitshik J; Barnes G; Bruce D; Chertkov O; Detter JC; et al. (BMC genomics, 2011)