拟南芥中由于同源重组导致的核糖体DNA间隔区的种内长度异质性
Intraspecific length heterogeneity of the rDNA-IGR in Arabidopsis thaliana due to homologous recombination.
作者信息
Luschnig C, Bachmair A, Schweizer D
机构信息
Universität Wien, Abteilung Cytologie und Genetik, Vienna, Austria.
出版信息
Plant Mol Biol. 1993 Jun;22(3):543-5. doi: 10.1007/BF00015983.
PMID:8329690
Abstract
A new heterogeneity of the rDNA spacer of Arabidopsis thaliana, resulting from variation in copy number of the so-called 'C' repeat located downstream of the presumptive polymerase I promoter, is reported. Variation is shown to occur within and between ecotypes. PCR analysis and sequence comparison suggests that the observed length heterogeneity is due to homologous recombination.
摘要
据报道，拟南芥核糖体DNA间隔区出现了一种新的异质性，这是由位于假定的聚合酶I启动子下游的所谓“C”重复序列拷贝数的变化引起的。研究表明，这种变异在生态型内部和生态型之间都会发生。PCR分析和序列比较表明，观察到的长度异质性是由同源重组引起的。
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