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- Title
Frequency and distribution of rob(1;29) in eight Portuguese cattle breeds.
- Authors
Iannuzzi, A.; Di Meo, G. P.; Jambrenghi, A. Caputi; Vonghia, G.; Iannuzzi, L.; Rangel-Figueiredo, T.
- Abstract
Cytogenetic investigations performed in eight Portuguese cattle breeds revealed the presence of rob(1;29) in both heterozygous and homozygous conditions in all, and five breeds, respectively, with variable percentages of carriers as follows: 41.0% in Arouquesa, 69.9% in Barrosa, 39.4% in Maronesa, 2.8% in Mirandesa, 8.5% in Marinhoa, 1.8% in Mertolenga, 21.3% in Raca Brava and 21.5% in Alentejana. CBA- and RBA-banding were performed to ascertain the chromosomes involved in the chromosome abnormality. A total of 1,626 animals were investigated. Reproductive parameters (number of calves per 100 cows) were higher in Mirandesa (80%) when compared with both Maronesa (75%) and Barrosa (70%) breeds, underlining that rob(1;29) reduces fertility in the carriers. Copyright © 2008 S. Karger AG, Basel
- Subjects
CYTOGENETICS; CATTLE breeds; CATTLE breeding; CHROMOSOMES; CHROMOSOME abnormalities; GENETIC mutation
- Publication
Cytogenetic & Genome Research, 2008, Vol 120, Issue 1/2, p147
- ISSN
1424-8581
- Publication type
Article
- DOI
10.1159/000118755