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De-novo generation of mitochondrial DNA plasmids following cytoplasmic transmission of a degenerative disease in Ophiostoma novo-ulmi.

作者信息

Charter N W, Buck K W, Brasier C M

机构信息

Department of Biology, Imperial College of Science, Technology and Medicine, London, UK.

出版信息

Curr Genet. 1993 Dec;24(6):505-14. doi: 10.1007/BF00351714.

DOI:10.1007/BF00351714
PMID:8299172
Abstract

A mitochondrial DNA plasmid was detected in an isolate of Ophiostoma novo-ulmi with a degenerative disease. The DNA plasmid was shown to be derived from the mitochondrial DNA and to map to a region corresponding to the large ribosomal RNA coding region. The DNA plasmid was not transmitted into sexual (ascospore) progeny, irrespective of whether the diseased isolate acted as the female or male parent. Transmission of the disease to healthy, plasmid-free, "recipient" isolates by hyphal anastomosis was not accompanied by transfer of mitochondrial DNA or DNA plasmid from the diseased "donor" isolate, but resulted in de-novo generation of different plasmids, derived from the recipient's mitochondrial DNA.

摘要

相似文献

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本文引用的文献

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核苷酸序列分析表明，新榆枯萎病菌（Ophiostoma novo-ulmi）患病分离株中的一个DNA质粒是由线粒体大亚基核糖体RNA基因中的两个长重复序列之间的重组产生的。
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