A new reciprocal translocation in a subfertile bull

Three bulls of the Montbéliarde breed that exhibited fertility rates lower than 30% following more than 400 artificial inseminations were examined. Semen quality (sperm motility and morphology) from these bulls was normal. Fertilizing ability estimated from in vitro embryo production results was stu...

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Bibliographic Details
Published in:Genetics selection evolution (Paris) 2000-11, Vol.32 (6), p.589-598, Article 589
Main Authors: Ducos, A, Dumont, P, Séguéla, A, Pinton, A, Berland, H, Brun-Baronnat, C, Darré, A, Marquant-Le Guienne, B, Humblot, P, Boichard, D, Darré, R
Format: Article
Language:English
Subjects:
Bulls
cattle
chromosome abnormality
Chromosome banding
Cytogenetics
Fertility
Genetic aspects
Genetics
Life Sciences
Semen
semen quality
Translocation
Translocation (Genetics)
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Summary:Three bulls of the Montbéliarde breed that exhibited fertility rates lower than 30% following more than 400 artificial inseminations were examined. Semen quality (sperm motility and morphology) from these bulls was normal. Fertilizing ability estimated from in vitro embryo production results was studied for two of them. In vitro production rate was very low for one bull (A) and normal for the other (B). Cytogenetic analyses were carried out on the three bulls using chromosome banding techniques. These analyses revealed a reciprocal translocation (12;17)(q22;q14) in bull B. Based on family analyses, the hypothesis of a de novo origin of this rearrangement is proposed.
ISSN:0999-193X
1297-9686
1297-9686
DOI:10.1186/1297-9686-32-6-589