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NUCLEAR DNA CONTENT IN POPULATIONS OF PINUS RIGIDA
Author(s) -
Dhillon Sukhraj S.,
Berlyn Graeme P.,
Miksche Jerome P.
Publication year - 1978
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1978.tb06056.x
Subject(s) - biology , pinus <genus> , botany , latitude , nuclear dna , habitat , germination , ecology , genetics , gene , mitochondrial dna , geodesy , geography
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.