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The amphioxus FoxQ1 gene is expressed in the developing endostyle

Mazet, F., Luke, G. N. and Shimeld, S. M. (2005) The amphioxus FoxQ1 gene is expressed in the developing endostyle. Gene Expression Patterns, 5 (3). pp. 313-315. ISSN 1567-133X

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To link to this item DOI: 10.1016/j.modgep.2004.10.004


The FoxQ1 genes form a distinct group within the Fox (also known as forkhead) gene family. We have isolated a gene from the amphioxus Branchiostoma floridae that encodes a forkhead domain with high identity to FoxQ1 genes in other chordates. Molecular phylogenetic analysis places AmphiFoxQ1 in a robust grouping with vertebrate FoxQ1 genes and with Ciona intestinalis Ci-FoxQ1. This group is separate from that containing AmphiFoxQ2, which instead groups with other invertebrate Fox genes. The expression of AmphiFoxQ1 was analysed by whole mount in situ hybridisation. The results show that AmphiFoxQ1 expression is confined to the developing endoderm, and specifically marks the endostyle and associated peripharyngeal bands of amphioxus larvae. Ci-FoxQ1 is also expressed in the endostyle, highlighting this as a conserved site of FoxQ1 gene expression in basal chordates. (C) 2004 Elsevier B.V. All rights reserved.

Item Type:Article
Divisions:Life Sciences > School of Biological Sciences
ID Code:10360
Uncontrolled Keywords:amphioxus, FoxQ, protochordate, endostyle, evolution, FoxF, CIONA-INTESTINALIS, VISCERAL MESODERM, FAMILY, EMBRYO

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