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Molecular aspects of cytoplasmic male sterility in perennial ryegrass (Lolium perenne L.): mtDNA and RNA differences between plants with male-sterile and fertile cytoplasm and restriction mapping of their atp6 and coxI homologous regions



Molecular aspects of cytoplasmic male sterility in perennial ryegrass (Lolium perenne L.): mtDNA and RNA differences between plants with male-sterile and fertile cytoplasm and restriction mapping of their atp6 and coxI homologous regions



Tag. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik 83(3): 330-336



Lolium perenne L. male-sterile and fertile cytoplasms contain different mitochondrial genomes, as revealed by Southern hybridization with a number of heterologous mitochondrial probes. In addition, transcriptional patterns of atp6 and coxI genes distinguish both cytoplasmic types. The majority of the L. perenne sequences from male-sterile and fertile cytoplasm showing homology with these two genes has been cloned and mapped by restriction digestion. A complex genomic organization, especially concerning coxI homologous sequences, was found in the male-sterile cytoplasm. Furthermore, during the course of these studies tissue-culture-induced mtDNA mutations in a number of coxI-containing sequences were detected in regenerated plants.

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Accession: 002163443

Download citation: RISBibTeXText

PMID: 24202515

DOI: 10.1007/bf00224279


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