Mammalian Genome

, Volume 15, Issue 1, pp 23–34

Phylogenetic conservation of a limb-specific, cis-acting regulator of Sonic hedgehog (Shh)

  • Tomoko Sagai
  • Hiroshi Masuya
  • Masaru Tamura
  • Kunihiko Shimizu
  • Yukari Yada
  • Shigeharu Wakana
  • Yoichi Gondo
  • Tetsuo Noda
  • Toshihiko Shiroishi
Article

DOI: 10.1007/s00335-033-2317-5

Cite this article as:
Sagai, T., Masuya, H., Tamura, M. et al. Mamm Genome (2004) 15: 23. doi:10.1007/s00335-033-2317-5

Abstract

Polarized expression of the Sonic hedgehog (Shh) gene in the posterior mesenchyme is essential for pattern formation in the appendages of higher vertebrates, from teleost fins to tetrapod limb buds. We report on a sequence in intron 5 of the Lmbr1 gene, which resides approximately 1 Mb from the Shh coding region in the mouse genome and is highly conserved among teleost fishes and throughout the tetrapod lineage. Positional cloning revealed that two mouse mutations, Hx and M100081, characterized by mirror-image digit duplication and ectopic anterior Shh expression, have base substitutions in this sequence. Absence of the conserved sequence in limbless reptiles and amphibians and a cis-trans test using the Hx and Shh KO alleles suggest that the sequence is a cis-acting regulator that controls the polarized expression of Shh.

Copyright information

© Springer-Verlag New York Inc. 2004

Authors and Affiliations

  • Tomoko Sagai
    • 1
  • Hiroshi Masuya
    • 2
  • Masaru Tamura
    • 1
  • Kunihiko Shimizu
    • 3
  • Yukari Yada
    • 1
  • Shigeharu Wakana
    • 2
  • Yoichi Gondo
    • 4
  • Tetsuo Noda
    • 2
  • Toshihiko Shiroishi
    • 1
    • 2
  1. 1.Mammalian Genetics LaboratoryNational Institute of Genetics, Yata-1111, Mishima, Shizuoka-ken 411-8540Japan
  2. 2.Mouse Functional Genomics Research GroupRiken Genomic Sciences Center, 214 Maeda-cho, Totsuka-ku, Yokohama, Kanagawa 244-0804Japan
  3. 3.Department of PedodonticsNihon University Graduate School of Dentistry at Matudo, 2-870-1 Sakaecho-Nishi, Matudo, Chiba, 271Japan
  4. 4.Population and Quantitative Genomics TeamBioinformatics Group, Riken Genomic Sciences Center, 214 Maeda-cho, Totsuka-ku, Yokohama, Kanagawa 244-0804Japan