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Additional Chromosomes in the Karyotin of Siberian Spruce P. obovata
Muratova E. N., Vladimirova O. S.
Results of karyological study of ornamental forms of Picea obovata Ledeb. are presented. Typical chromosome number (2n) is 24, but some trees have one or two additional chromosomes (2n = 24 + 1B; 2n = 24 + 2B). Heritability of additional chromosomes, pollen fertility, morphological features of cones, and seed quality in trees with and without additional chromosomes were studied. System of B-chromosomes is of importance for population and species adaptation and possibly plays a role in adaptation of P. obovata under introduction.
Tsitologiya i Genetika 2001, vol. 35, no. 4, pp. 38-44
Muratova E. N., Vladimirova O. S. Additional Chromosomes in the Karyotin of Siberian Spruce P. obovata, Tsitol Genet., 2001, vol. 35, no. 4, pp. 38-44.
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