Record nummer 1902763
Titel artikel Y Chromosome Haplotype Analysis in Portuguese Cattle Breeds Using SNPs and STRs
Auteur(s) Ginja, C. ; Telo da Gama, L. ; Penedo, M.C.T.
Tijdschrifttitel The journal of heredity : an illustrated monthly publication devoted to plant breeding, animal breeding and eugenics
Deel(Jaar)Nummer 100(2009)2
Paginering 148 - 157
Online full text
Trefwoorden (cab) rundvee / rundveerassen / haplotypen / y-chromosoom
Rubrieken Dierenrassen, selectie en genetica / Rundvee
Publicatie type Artikel
Taal Engels
Toelichting cattle, haplotypes, Y chromosome
Toelichting (Engels) DNA samples from 307 males of 13 Portuguese native cattle breeds, 57 males of the 3 major exotic breeds in Portugal (Charolais, Friesian, and Limousin), and 5 Brahman (Bos indicus) were tested for 5 single nucleotide polymorphisms, 1 ‘‘indel,’’ and 7 microsatellites specific to the Y chromosome. The 13 Y-haplotypes defined included 3 previously described patrilines (Y1, Y2, and Y3) and 10 new haplotypes within Bos taurus. Native cattle contained most of the diversity with 7 haplotypes (H2Y1, H3Y1, H5Y1, H7Y2, H8Y2, H10Y2, and H12Y2) found only in these breeds. H6Y2 and H11Y2 occurred in high frequency across breeds including the exotics. Introgression of Friesian cattle into Ramo Grande was inferred through their sharing of haplotype H4Y1. Among the native breeds, Mertolenga had the highest haplotype diversity (0.68 ± 0.07), Brava de Lide was the least differentiated. The analyses of molecular variance showed significant (P , 0.0001) differences between breeds with more than 64% of the total genetic variation found among breeds within groups and 33–35% within breeds. The detection of INRA189-104 allele in 8 native breeds suggested influence of African cattle in breeds of the Iberian Peninsula. The presence in Portuguese breeds of Y1 patrilines, also found in aurochs, could represent more ancient local haplotypes
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