Organelle DNA variation and systematic relationships in the genus Zea: teosinte [Maize relatives]

Chloroplast and mitochondrial DNAs from six races of annual teosinte (Guatemala, Huehuetenango, Balsas, Central Plateau, Chalco, and Nobogame), perennial teosinte, and maize were compared and grouped by restriction endonuclease fragment analyses. Three groups of chloroplast DNAs were detected: (i) p...

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Bibliographic Details
Published in:Proceedings of the National Academy of Sciences - PNAS 1979-09, Vol.76 (9), p.4220-4224
Main Authors: Timothy, D. H., Levings, C. S., Pring, D. R., Conde, M. F., Kermicle, J. L.
Format: Article
Language:English
Subjects:
Balsa
Biological Sciences: Applied Biology
Corn
Cytoplasm
DNA
Evolutionary genetics
Genetic variation
Mitochondrial DNA
Organelles
Perennials
Taxa
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Summary:Chloroplast and mitochondrial DNAs from six races of annual teosinte (Guatemala, Huehuetenango, Balsas, Central Plateau, Chalco, and Nobogame), perennial teosinte, and maize were compared and grouped by restriction endonuclease fragment analyses. Three groups of chloroplast DNAs were detected: (i) perennial teosinte and Guatemala; (ii) Balsas and Huehuetenango; and (iii) all other teosintes. Four groups of mitochondrial DNAs were separated: (i) perennial teosinte; (ii) Guatemala; (iii) Nobogame; and (iv) all other teosintes. Separation of the teosinte and maize organelle DNAs into five groups (Guatemala; perennial teosinte; Balsas and Huehuetenango; Central Plateau and Chalco; Nobogame and maize) approximated the biosystematic relationships of the taxa. It was suggested that the evolutions of the chloroplast and mitochondrial DNAs may be independent of each other, that variation of organelle DNA within a species complex of an organism may be the common condition, and that the DNAs of the organelle and nuclear systems evolve in reasonable harmony.
ISSN:0027-8424
1091-6490
DOI:10.1073/pnas.76.9.4220