Mapping of chloroplast DNA (ctDNA) restriction fragment patterns from a chlorophyll deficient mutant and two phenotypically normal alfalfa genotypes (Medicago sativa L.) has demonstrated the existence of a distinct ctDNA genotype from each source. These unique restriction fragment patterns were util
Variations of chloroplast DNAs in the genusPelargoniumand their biparental inheritance
✍ Scribed by M. Metzlaff; T. Börner; R. Hagemann
- Publisher
- Springer
- Year
- 1981
- Tongue
- English
- Weight
- 818 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0040-5752
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✦ Synopsis
The comparison of EcoRI patterns of chloroplast DNAs (ctDNAs) from five species of the genus Pelargonium and from 16 cultivars and varieties of Pelargonium zonale hort. demonstrates a remarkable inter- and intraspecific ctDNA (plastome) variation. The plastome of the P. zonale varieties could be differentiated into groups I, II and III. Reasons for this variation seem to be: occurrence of numerous spontaneous plastome mutations, intense hybridisation by gardeners and breeders, and biparental plastid inheritance.Crosses of P. zonale varieties with different ctDNA types lead to the direct evidence on the molecular level of biparental plastid inheritance and plastid sorting-out in F1-hybrids.
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