Islet-1 marks the early heart rudiments and is asymmetrically expressed during early rotation of the foregut in the chick embryo

Abstract excerpt

Islet-1 (Isl-1), the LIM domain homeobox gene, is a well-known early marker of neuronal specification. Here, we show its spatial and temporal patterns of expression during early heart and gut development in the chick embryo. Isl-1 transcripts are first detected in the early cardiac progenitors and underlying endoderm at late stage 4. By stages 5-6, it is also expressed in the prechordal plate. From stage 6...

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