Radiation hybrid map, physical map, and low-pass genomic sequence of the canine prcd region on CFA9 and comparative mapping with the syntenic region on human chromosome 17

Genomics. 2003 Feb;81(2):138-48. doi: 10.1016/s0888-7543(02)00028-9.

Abstract

Progressive rod-cone degeneration (prcd) is a canine retinal disease that maps to the centromeric end of CFA9 in a region of synteny with the distal part of HSA17q. As such, prcd has been postulated as the only animal model of RP17, a human retinitis pigmentosa locus that maps to 17q22. In an effort to establish more detailed regions of synteny between dog CFA9 and the HSA17q-ter region, we created a robust gene-enriched CFA9-RH08(3000) map with 34 gene-based markers and 12 microsatellites, with the highest resolution and number of markers for the centromeric end of CFA9. Furthermore, we built an approximately 1.5-Mb physical map containing both GRB2 and GALK1, genes so far identified by meiotic linkage analysis as being closest to the prcd locus, and generated about 1.2 Mb low-pass (3.2x) canine sequence. Canine to human comparative sequence analysis identified 49 transcripts that had been previously mapped to the HSA17q25 region. The generated low-pass canine sequence was annotated with a working draft of human sequence from HSA17q25, and we used this scaffold to order and orient the canine sequence against human. This order and orientation are preliminary, as high-throughput genomic sequencing of HSA17q-ter has not been fully completed.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Chromosome Mapping
  • Chromosomes, Artificial, Bacterial
  • Chromosomes, Human, Pair 17*
  • Dogs
  • Humans
  • Molecular Sequence Data
  • Radiation Hybrid Mapping*
  • Sequence Alignment
  • Sequence Analysis, DNA
  • Sequence Homology
  • Synteny*

Associated data

  • GENBANK/AY178785
  • GENBANK/AY178786
  • GENBANK/AY178787
  • GENBANK/AY178788
  • GENBANK/AY178789
  • GENBANK/AY178790
  • GENBANK/AY178791
  • GENBANK/AY178792