The present invention provides compositions and methods for targeting
polypeptides to the chloroplasts of higher plants. Compositions include
expression cassettes having a nucleotide sequence encoding a chloroplast
targeting peptide (CTP) operably linked to a nucleotide sequence of
interest, wherein the CTP is derived from Chlamydomonas sp. Plant
transformation vectors, plants and plant cells having the CTP sequences
are also encompassed, as well as variants and fragments of the CTP
sequences. Methods for expressing a heterologous nucleotide sequence in a
plant using the CTP sequences disclosed herein are also provided.