Визначення філогенетичних взаємозв'язків між Pinus pallasiana D.Don та Pinus nigra Arnold var. austriaca Hoss за їх морфологічною та алозимною мінливістю

Abstract

Researches of individual variation of female strobiles and needle morphometric indices of thirty Pinus pallasiana D. Don and Pinus nigra Arnold var. austriaca Hoss trees of 40-aged stands of the Donetsk Botanical Gardens Dendrarium have been made. Valid differences concearning the morphometric indices being peculiar to length of needles only. To determine genetic differentiation and these taxa similarity introduction stands of P. nigra var. austriaca and natural population of P. allasiana from the Crimea were compared. Isozymes of 9 enzymous systems were used as genetic markers. Their variability was analysed with the help of electrophoretic division in 7,5% polyacrylamide gel. Nei’s genetic distance between P. pallasiana and P. nigra var. austriaca was not sensible – 0.009. It was fixed on the base of 21 allozyme loci frequencies. Such low values of this universal index do not give any reason for P. pallasiana to be regarded to independent species category.