Abstract
Robertsonian translocation (rob) involving chromosomes 1 and 29 represents the most frequent chromosome abnormality observed in cattle breeds intended for meat production. The negative effects of this anomaly on fertility are widely demonstrated, and in many countries, screening programs are being carried out to eliminate carriers from reproduction. Although rob(1;29) was first observed in 1964, the genomic structure of this anomaly is partially unclear. In this work, we demonstrate that, during the fusion process, around 5.4 Mb of the pericentromeric region of BTA29 moves to the q arm, close to the centromere, of rob(1;29). We also clearly show that this fragment is inverted. We find that no deletion/duplication involving sequences reported in the BosTau6 genome assembly occurred during the fusion process which originates this translocation.
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Abbreviations
- BAC:
-
Bacterial Artificial Chromosome
- BLAST:
-
Basic Local Alignment Search Tool
- BTA:
-
Bos Taurus
- C11orf:
-
Chromosome 11 Open Reading Frame
- ESM:
-
Electronic supplementary material
- FISH:
-
Fluorescence In situ Hybridization
- FOLH:
-
folate hydrolase
- HC:
-
heterochromatin
- IDGVA:
-
Istituto Di Genetica e Valorizzazione Animale
- INRA:
-
Institut National Recheche Agronomique
- MIR:
-
microRNA
- QTL:
-
Quantitative trait loci
- RefSeq:
-
Reference sequence
- SCARNA:
-
small Cajal body-specific RNA
- SLC:
-
solute carrier
- SMORD:
-
small nuclear RNA C/D box non-coding RNA
- SNORA:
-
small nucleolar RNA, H/ACA box
- TRIM:
-
tripartite motif-containing
- TYR:
-
Tyrosine
- UBTFL:
-
upstream binding transcription factor
- UMD:
-
University of Maryland
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Acknowledgments
We are grateful to the CRB GADIE (INRA, Jouy-en-Josas, France) for providing cattle-specific BACs and to Prof. Mariano Rocchi (Di.Ge.Mi, Bari, Italy) for providing human-specific BACs. We are also grateful to ANABIC employers for providing fresh blood from subjects carrying rob(1;29) and Domenico Incarnato, CNR-ISPAAM of Naples, for his excellent technical assistance. This study was partially supported by PSR, Misura 214, e2 of Campania Region, Project “Razze Autoctone a Rischio di Estinzione della Regione Campania–RARECa.”
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Responsible Editor: Herbert Macgregor.
Lisa De Lorenzi and Viviana Genualdo contributed equally to this work.
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De Lorenzi, L., Genualdo, V., Gimelli, S. et al. Genomic analysis of cattle rob(1;29). Chromosome Res 20, 815–823 (2012). https://doi.org/10.1007/s10577-012-9315-y
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DOI: https://doi.org/10.1007/s10577-012-9315-y