Additional data file 1.

Presented is a table listing marker gene expression in the developing Xenopus pronephric kidney at stages 25, 29/30, 35/36, and 40, as determined by whole-mount in situ hybridization. None of the genes analyzed were expressed in the stage 20 pronephric anlage. The expression levels were graded as follows: possible (+/-), present (+), and strong (++). The GenBank accession numbers of the cDNAs used for in situ hybridization probe synthesis are provided.

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Raciti et al. Genome Biology 2008 9:R84   doi:10.1186/gb-2008-9-5-r84