The distribution of runs of homozygosity in the genome of river and swamp buffaloes reveals a history of adaptation, migration and crossbred events.

摘要: Water buffalo is one of the most important livestock species in world. Two types water exist: river (Bubalus bubalis bubalis) and swamp carabanensis). The genome has been recently sequenced, thus a new 90 K single nucleotide polymorphism (SNP) bead chip developed. In this study, we investigated genomic population structure level inbreeding 185 153 buffaloes using runs homozygosity (ROH). Analyses were carried out jointly separately for two types. SNP detected about one-third SNPs identified type. total, 18,116 ROH combined data set (17,784 SNPs), 16,251 these unique. present both mostly (~ 59%) buffalo. number per animal was larger higher than separated datasets (46,891 17,690 type, respectively), 19,760 10,581 found swamp, respectively. genes that map to islands are associated with adaptation environment, fitness traits reproduction. Analysis features allowed their characterization highlighted differences between breeds. A large island on chromosome 2 shared contained involved environmental