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Article

Intra- and inter-specific variation in nuclear ribosomal internal transcribed spacer 1 of the Schistosoma japonicum species complex.

Parasitology - 1 Apr 1998

van Herwerden L, Blair D, Agatsuma T

Abstract excerpt

The first internal transcribed spacer (ITS1) of the nuclear ribosomal DNA repeat was sequenced for members of the Schistosoma japonicum species complex (S. malayensis, S. mekongi and 2 geographical isolates of S. japonicum). The ITS1 is composed of 3 distinct regions: the 5' end (23 nucleotides); a tract of approximately 90-140 nucleotides, which occurs up to 7 times in tandem, the number varying even within an...

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PMID: 9585933
DOI: 10.1017/s003118209800242x

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