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Somatic hybridization in petunia 2. heteroplasmic state in somatic hybrids followed by cytoplasmic segregation into male sterile and male fertile lines



Somatic hybridization in petunia 2. heteroplasmic state in somatic hybrids followed by cytoplasmic segregation into male sterile and male fertile lines



Theoretical and Applied Genetics 57(6): 241-245



Two types of cytoplasmic hybrids were obtained by protoplast fusion. These contained either one or the other original parental nucleus and heteroplasmon, a mix of plasmons inducing cytoplasmic male sterility and fertility. In subsequent generations, following selfing, stable male sterile and male fertile lines segregated from single fertile cytoplasmic hybrid plants. The existence of a heteroplasmic state in the somatic hybrids and the occurrence of cytoplasmic segregation of the heteroplasmon into homoplasmons following the 1st and the 2nd meiotic cycles were demonstrated.

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Accession: 006437506

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