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| CLONING AND EVOLUTIONARY ANALYSIS OF MSH-LIKE HOMEOBOX GENES FROM MOUSE, ZEBRAFISH AND ASCIDIAN |
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| Author(s): HOLLAND PWH |
| Source: GENE Volume: 98 Issue: 2 Pages: 253-257 Published: FEB 15 1991 |
| Times Cited: 107 References: 14 |
| Abstract: The homeobox is a relatively conserved 180-nucleotide-long sequence characterizing a large and phylogenetically wide-spread family of putative regulatory genes, many of which have been implicated in the control of embryonic development. The Drosophila melanogaster muscle segment homeobox (msh) gene contains a homeobox which is markedly divergent from that of any other characterized D. melanogaster gene, yet very similar to that of the mouse Hox-7.1 gene [Robert et al., EMBO J. 8 (1989) 91-100; Hill et al., Genes Develop. 3 (1989) 26-37]. To elucidate the evolutionary relationship between these two genes, and hence facilitate comparative analyses, it is necessary to determine the number of msh-like genes in the two species, and to characterize any msh gene duplication events which may have occurred since their divergence. To address these questions, I have employed the polymerase chain reaction to amplify, clone and sequence msh-related homeobox genes from two divergent vertebrate species (mouse and zebrafish), one ascidian (Ciona intestinalis), and D. melanogaster. Sequence determination of 91 recombinant clones resulted in the identification of three msh-like genes from mouse and three from zebrafish, but only one each from C. intestinalis and D. melanogaster. Sequence analyses suggest that multiple msh gene duplications occurred in the lineage leading to vertebrates, after the divergence of the ascidia. |
| Document Type: Note |
| Language: English |
| Reprint Address: HOLLAND, PWH (reprint author), UNIV OXFORD, DEPT ZOOL, S PARKS RD, OXFORD OX1 3PS, ENGLAND |
| Publisher: ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
| Subject Category: Genetics & Heredity |
| IDS Number: FG245 |
| ISSN: 0378-1119 |
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