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Cited by 216

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The evolution of the vertebrate Dlx gene family.

Open access
Stock, D W, Ellies, D L, Zhao, Z, Ekker, M, Ruddle, F H, Weiss, K M·1996·Proceedings of the National Academy of Sciences

Abstract

The vertebrate Dlx gene family consists of homeobox-containing transcription factors distributed in pairs on the same chromosomes as the Hox genes. To investigate the evolutionary history of Dlx genes, we have cloned five new zebrafish family members and have provided additional sequence information for two mouse genes. Phylogenetic analyses of Dlx gene sequences considered in the context of their chromosomal arrangements suggest that an initial tandem duplication produced a linked pair of Dlx genes after the divergence of chordates and arthropods but prior to the divergence of tunicates and vertebrates. This pair of Dlx genes was then duplicated in the chromosomal events that led to the four clusters of Hox genes characteristic of bony fish and tetrapods. It is possible that a pair of Dlx genes linked to the Hoxc cluster has been lost from mammals. We were unable to distinguish between independent duplication and retention of the ancestral state of bony vertebrates to explain the presence of a greater number of Dlx genes in zebrafish than mammals. Determination of the linkage relationship of these additional zebrafish Dlx genes to Hox clusters should help resolve this issue.

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Metadata

Authors
Stock, D. W., Ellies, D. L., Zhao, Z., Ekker, M., Ruddle, F. H., & Weiss, K. M.
Venue
Proceedings of the National Academy of Sciences
Published
1996-10
Volume
93
Issue
20
Pages
10858-10863
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2084363118
Cited by
216
References
2
FWCI
3.71
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: The evolution of the vertebrate Dlx gene family. https://app.cochat.ai/papers/10.1073/pnas.93.20.10858
The paper
Stock, D. W., Ellies, D. L., Zhao, Z., Ekker, M., Ruddle, F. H., & Weiss, K. M. (1996). The evolution of the vertebrate Dlx gene family. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.93.20.10858

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