Maternal inheritance of cytoplasmic organelles in intergeneric hybrids of Carica papaya L. and Vasconcellea spp. (Caricaceae Dumort., Brassicales) |
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| Authors: | B. Van Droogenbroeck I. Maertens A. Haegeman T. Kyndt C. O’Brien R. A. Drew G. Gheysen |
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| Affiliation: | (1) Department of Molecular Biotechnology, Faculty of Agricultural and Applied Biological Sciences, Ghent University, Coupure Links 653, B-9000 Gent, Belgium;(2) School of Biomolecular and Biomedical Science, Griffith University, Nathan Campus, Brisbane, Queensland, 4111, Australia;(3) Present address: Department of Plant Systems Biology, Flanders Interuniversitary Institute of Biotechnology, Ghent University, Technologiepark 927, B-9052 Zwijnaarde, Belgium |
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| Abstract: | The mode of inheritance of chloroplast and mitochondrial DNA has been determined in intergeneric hybrids between C. papaya and four different Vasconcellea species by employing a restriction fragment length polymorphism analysis of a PCR-amplified chloroplast and mitochondrial DNA region. Artificial F1 hybrids were produced between a female specimen of C. papaya and male specimens of either V. parviflora, V. goudotiana, V. cundinamarcensis or V. quercifolia. The hybridization patterns of all hybrids correspond in all cases with that of the C. papaya mother, and are different from that of the paternal Vasconcellea species, thus indicating the maternal inheritance of cpDNA and mtDNA in intergeneric hybrids between C. papaya and wild relatives of the Vasconcellea genus. |
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| Keywords: | intergeneric hybrids maternal inheritance organelle papaya uniparental Vasconcellea |
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