Cytoplasmic male sterility in Plantago lanceolata L.: differences between male-sterile cytoplasms at the DNA- and RNA-level
Copyright policy )Cytoplasmic male sterility in Plantago lanceolata L.: differences between male-sterile cytoplasms at the DNA- and RNA-level
To establish the feasibility of a cytoplasmtype assay based on molecular hybridizations, mitochondrial DNAs from the two male-sterile cytoplasms of Plantago lanceolata (P and R) were compared by restriction endonuclease digestion. We cloned a 1.1 kbp Eco RI-HindIII fragment from P-mtDNA (pPl-311), which on hybridization to Southern blots of Bam HI digested mtDNA and total DNA from plants with P-cytoplasm, hybridized to a specific 1.1 kbp Bam HI fragment. Hybridizations of pPl-311 to Northern blots of total RNA resulted in the detection of 1,250 and 1,100 nucleotides transcripts specific to P- and R-cytoplasm, respectively, and of a common transcript of 930 nt. Evidence was obtained for additional cytoplasmic variation within P. lanceolata populations
- University of Groningen Netherlands
- Royal Netherlands Academy of Arts and Sciences (KNAW) Netherlands
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