Abstract
A bacterial artificial chromosome (BAC) contig was constructed by chromosome walking, starting from the Hox genes of the silkworm, Bombyx mori. Bombyx orthologues of the labial (lab) and zerknült (zen) genes were newly identified. The size of the BAC contig containing the Hox gene cluster—except the lab and Hox 2 genes—was estimated to be more than 2 Mb. The Bombyx Hox cluster was mapped to linkage group (LG) 6. The lab gene was mapped on the same LG, but far apart from the cluster. Fluorescence in situ hybridization analysis confirmed that the major Hox gene cluster and lab were at different locations on the same chromosome in B. mori.
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Acknowledgements
We are grateful to Dr. M.R. Goldsmith and Dr. S.J. Brown for critical reading of the manuscript. We also thank Mrs. H. Takahashi, Mrs. E. Igari, Mrs. H. Hoshida, and Mrs. T. Maeda for their technical assistance. This work was supported in part by a Grant-in-Aid for Scientific Research (no. 15380227) and Enhancement of Center of Excellence, Special Coordination Funds for Promoting Science and Technology from the Ministry of Education, Culture, Sports, Science and Technology of Japan.
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Yasukochi, Y., Ashakumary, L.A., Wu, C. et al. Organization of the Hox gene cluster of the silkworm, Bombyx mori: a split of the Hox cluster in a non-Drosophila insect. Dev Genes Evol 214, 606–614 (2004). https://doi.org/10.1007/s00427-004-0441-1
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DOI: https://doi.org/10.1007/s00427-004-0441-1