ISOLATION OF SINGLE-COPY-SEQUENCE CLONES FROM A YEAST ARTIFICIAL CHROMOSOME LIBRARY OF RANDOMLY-SHEARED ARABIDOPSIS-THALIANA DNA

被引:121
作者
WARD, ER [1 ]
JEN, GC [1 ]
机构
[1] CIBA GEIGY CORP,AGR BIOTECHNOL RES UNIT,POB 12257,RES TRIANGLE PK,NC 27709
关键词
chromosome walking; genome mapping; plant genetics; YAC;
D O I
10.1007/BF00027501
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
We describe the construction of a yeast artificial chromosome (YAC) library from the Arabidopsis thaliana genome. Randomly sheared high molecular weight source DNA was extracted from frozen, ground leaf tissue and blunt-end-ligated to the vector pYAC3. By size-fractionating the ligation products, we achieved an average clone size of 150 kb. Approximately 6% of the YACs contained inserts from the chloroplast genome. We screened clones equivalent to greater than four A. thaliana haploid nuclear genomes and isolated YACs homologous to five single-copy-sequence probes. The library should be useful chromosome walking and genome mapping experiments. In addition, the approach used for its construction should be applicable to other higher plant species. © 1990 Kluwer Academic Publishers.
引用
收藏
页码:561 / 568
页数:8
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