01930naa a2200325 a 450000100080000000500110000800800410001902400430006010000190010324501030012226000090022552010050023465000290123965000190126865000210128765300220130865300080133065300350133865300140137370000170138770000180140470000170142270000160143970000260145570000170148170000170149870000210151570000220153677300460155819503212024-06-24       2012    bl uuuu     u00u1 u    #d7 a10.1111/j.1365-2052.2012.02374.x.2DOI1 aBURGOS-PAZ, W.  aWorldwide genetic relationships of pigs as inferred from X chromosome SNPs.h[electronic resource]  c2012  aThe phylogeography of the porcine X chromosome has not been studied despite the unique characteristics of this chromosome. Here, we genotyped 59 single nucleotide polymorph-isms (SNPs) in 312 pigs from around the world, representing 39 domestic breeds and wild boars in 30 countries. Overall, widespread commercial breeds showed the highest heterozygosity values, followed by African and American populations. Structuring, as inferred from FST and analysis of molecular variance, was consistently larger in the non-pseudoautosomal (NPAR) than in the pseudoautosomal regions (PAR). Our results show that genetic relationships between populations can vary widely between the NPAR and the PAR, underscoring the fact that their genetic trajectories can be quite different. NPAR showed an increased commercial-like genetic component relative to the PAR, probably because human selection processes to obtain individuals with high productive parameters were mediated by introgressing boars rather than sows.  aanimal genetic resources  aphylogeography  aGenética animal  aCromossomo sexual  aPig  aSingle-nucleotide polymorphism  aWild boar1 aSOUZA, C. A.1 aCASTELLÓ, A.1 aMERCADÉ, A.1 aOKUMURA, N.1 aSHEREMET’EVA, I. N.1 aHUANG, L. S.1 aPAIVA, S. R.1 aRAMOS-ONSINS, S.1 aPÉREZ-ENCISO, M.  tAnimal Geneticsgv. 44, p. 130-138, 2012.