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Dynamic gene expression of Lin-28 during embryonic development in mouse and chicken.

ABSTRACT: The Caenorhabditis elegans heterochronic gene lin-28 regulates developmental timing in the nematode trunk. We report the dynamic expression patterns of Lin-28 homologues in mouse and chick embryos. Whole mount in situ hybridization revealed specific and intriguing expression patterns of Lin-28 in the developing mouse and chick limb bud. Mouse Lin-28 expression was detected in both the forelimb and hindlimb at E9.5, but disappeared from the forelimb at E10.5, and finally from the forelimb and hindlimb at E11.5. Chicken Lin-28, which was first detected in the limb primordium at stage 15/16, was also downregulated as the stage proceeded. The amino acid sequences of mouse and chicken Lin-28 genes are highly conserved and the similar expression patterns of Lin-28 during limb development in mouse and chicken suggest that this heterochronic gene is also conserved during vertebrate limb development.

SUBMITTER: Yokoyama S

PROVIDER: S-EPMC2262948 | biostudies-literature | 2008 Feb

REPOSITORIES: biostudies-literature

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Dynamic gene expression of Lin-28 during embryonic development in mouse and chicken.

Yokoyama Shigetoshi S Hashimoto Megumi M Shimizu Hirohito H Ueno-Kudoh Hiroe H Uchibe Kenta K Kimura Ichiro I Asahara Hiroshi H

Gene expression patterns : GEP 20071117 3

The Caenorhabditis elegans heterochronic gene lin-28 regulates developmental timing in the nematode trunk. We report the dynamic expression patterns of Lin-28 homologues in mouse and chick embryos. Whole mount in situ hybridization revealed specific and intriguing expression patterns of Lin-28 in the developing mouse and chick limb bud. Mouse Lin-28 expression was detected in both the forelimb and hindlimb at E9.5, but disappeared from the forelimb at E10.5, and finally from the forelimb and hin ...[more]

PMID: 18077221

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