Frequency and Distribution of Rob (1;29) in Three Portuguese Cattle Breeds
2004; BioMed Central; Volume: 119; Issue: 3 Linguagem: Inglês
10.1111/j.1601-5223.1993.00233.x
ISSN1601-5223
AutoresT. Rangel‐Figueiredo, L. Iannuzzi,
Tópico(s)Genetic diversity and population structure
ResumoRepresentative samples of Portuguese cattle from Barrosã, Maronesa, and Mirandesa breeds underwent cytogenetic investigation. Banding showed that 134 (65.0%) Barrosas, 74 (40.2%) Maronesas and 4 (1.6%) Mirandesas carried rob (1;29). The frequency of this translocation in the three breeds (39% in Barrosas, 23% in Maronesas, and 1% in Mirandesas) was in a genetic Hardy-Weinberg equilibrium for the three karyological forms (2n = 60, 2n = 59 and 2n = 58), strongly supporting the hypothesis for an ancient origin of this translocation and the hypothesis of the origin of Maronesas from Barrosã and Mirandesa cross-breeding.
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