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NUCLEAR DNA CONTENT IN POPULATIONS OF PINUS RIGIDA |
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| Authors: | Sukhraj S Dhillon Graeme P Berlyn Jerome P Miksche |
| Institution: | Yale University School of Forestry and Environmental Studies, New Haven, Connecticut, 06511
Department of Botany, North Carolina State University, Raleigh, 27607 |
| Abstract: | Five populations of Pinus rigida growing in contrasting ecological situations ranging from North Carolina (35°53'N latitude) to Quebec (45°06'N latitude) showed no significant variation in amounts of nuclear DNA with respect to germinating seedlings. Nuclear volume of dormant nuclei also showed no significant variation between and within populations, a finding that is consistent with the concept that the basic 2C DNA value of Pinus rigida is uniform under all habitats. This finding is in contrast to numerous reports for other coniferous species. |
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