Visualization of the conservation of synteny between humans and pigs by heterologous chromosomal painting - PubMed (original) (raw)
Comparative Study
. 1995 Mar 20;26(2):372-8.
doi: 10.1016/0888-7543(95)80222-8.
Affiliations
- PMID: 7601464
- DOI: 10.1016/0888-7543(95)80222-8
Comparative Study
Visualization of the conservation of synteny between humans and pigs by heterologous chromosomal painting
G Rettenberger et al. Genomics. 1995.
Abstract
By comparative gene mapping, extended conservation of synteny between different mammalian species has become apparent. Mapping in these species could be accelerated by exact visualization of the chromosomal segments that exhibit conserved synteny. We have hybridized human chromosome-specific DNA libraries onto porcine metaphase spreads to examine the extent of conservation of synteny between the two species. The hybridization signals on pig chromosomes are of variable quality, but the analysis allowed us to assign for all human autosomes homologous chromosomal segments in the pig karyotype. Extended conservation of synteny was observed, often comprising whole chromosomes. In our analysis 47 segments of conserved synteny common to the human and pig karyotype were identified. Intrachromosomal rearrangements by inversion within and between these segments are described. These rearrangements are common events during evolution. Our analysis shows that conservation of synteny between human and pig is three times more than between humans and mice and, consequently, is characterized by fewer, but larger conserved segments.
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