A CONSERVED SEQUENCE IN INTERNAL TRANSCRIBED SPACER-1 OF PLANT NUCLEAR RIBOSOMAL-RNA GENES

被引：165

作者：

LIU, JS ^{[1
]}

SCHARDL, CL ^{[1
]}

机构：

[1] UNIV KENTUCKY,DEPT PLANT PATHOL,LEXINGTON,KY 40546

来源：

PLANT MOLECULAR BIOLOGY | 1994年 / 26卷 / 02期

关键词：

RIBOSOMAL RNA GENE; RNA PROCESSING; SECONDARY STRUCTURE; MOLECULAR PHYLOGENY;

D O I：

10.1007/BF00013763

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A highly conserved sequence was found in rRNA gene internal transcribed spacer 1 (ITS1) among flowering plant species. The sequence, GGCRY-(4 to 7 n)-GYGYCAAGGAA (where Y = C or T; R = G or A) is located in the central region of ITS1, and is present in published sequences from a wide range of flowering plants. The rest of ITS 1 is highly variable in sequence. Therefore, the conserved motif within ITS 1 may have a key function in the processing of rRNA gene transcripts. Furthermore, identification of such a conserved motif will help facilitate alignment of sequences for phylogenetic analysis.

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页码：775 / 778

页数：4

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