Cytogenetic Characteristics of Seed Progeny of Scots Pine Plus Tree Clones in Karelia
Journal Title: Lesnoy Zhurnal (Russian Forestry Journal) - Year 2022, Vol 13, Issue 1
Abstract
The article describes the cytogenetic parameters of seed progeny of Pinus sylvestris plus trees growing in the Petrozavodsk seed orchard of the first order. P. sylvestris normal trees from the natural pine phytocenosis in the Pryazha region (Karelia) were taken as a control. The following indicators were considered: relative DNA content, number of chromosomes, frequency and types of mitosis pathologies at the metaphase, anaphase and telophase stages (in % of the total number of dividing cells at the same stages). It was found that the root meristem of the P. sylvestris seed progeny contains 24 chromosomes in the diploid set. Single aneuploid cells (2n = 23; 2n = 25) were found in the studied plants. The most frequent is monosomy (2n = 23). It made up 81 % of the total number of aneuploid cells. The relative DNA content in the young needles of pine seedlings of plus clones and normal trees was 42.07±0.21 and 42.95±0.04 pg, respectively, and the difference between the two was statistically significant (U-test, p ˂ 0.01). Cytogenetic analysis revealed 7 types of mitosis pathologies: chromosome fragmentation, chromosome bridges, chromosome overlap, isolation of chromosomes and groups of chromosomes, chromosome lagging, multipolar mitosis and complex abnormalities. Chromosome overlap was the most common pathology in the general mitotic disorders spectrum. Comparison of mitosis pathologies in two general samples of normal trees and plus tree clones showed that they significantly differ by the following mitosis abnormalities: overlap and isolation of chromosomes in metaphase, fragmentation, lagging, bridges and multipolar mitosis in the anaphase and telophase. The study shows that the proportion of cells with mitosis abnormalities in the seed progeny of normal trees was about 1.5 times higher than of plus tree clones, and is equal 3.44±0.32 and 2.38±0.14 % (U-test, p = 0.05), respectively. The data obtained demonstrate the cytogenetic stability of the seed progeny of P. sylvestris clones from the Petrozavodsk seed orchard of the first order, which in turn may indicate the high quality of the seed material. For citation: Ignatenko R.V., Ershova M.A., Galibina N.A., Raevsky B.V. Cytogenetic Characteristics of Seed Progeny of Scots Pine Plus Tree Clones in Karelia. Lesnoy Zhurnal [Russian Forestry Journal], 2022, no. 1, pp. 9–22. DOI: 10.37482/0536-1036-2022-1-9-22
Authors and Affiliations
Roman V. Ignatenko, Maria A. Ershova, Nataliya A. Galibina, Boris V. Raevsky
Keywords
Related Articles
- EP ID EP700457
- DOI 10.37482/0536-1036-2022-1-9-22
- Views 132
- Downloads 0
Characteristics of Melliferous Lands and Their Fire Hazard in the Jewish Autonomous Region
Beekeeping is an essential economy branch. Therefore, it is so important to study the conditions that affect its state. The Jewish Autonomous Region (JAR) is one of the most important melliferous regions of the Far East....
Photosynthesis, Mineral Nutrition and Productivity of Decidious and Coniferous Dendroflora Species in the Central Part of the Russian Plain
An ecological and physiological retrospective transformation of the data from the dry mass tables obtained by V.A. Usoltsev has been carried out for 7 coniferous and deciduous species (Larix sukaczewii, Picea abies, Pinu...
Application of Reinforced Soil Foundations in the Construction of Wooden Bridge Abutments Along Logging Road
 Wooden bridges have been used quite frequently on logging roads, regardless of their low durability and weak fire resistance. The preference is determined by the application of local materials in the construction and r...
Combustion Efficiency of Wood Fuel in the Water Boilers KVU-2000
Renewable energy use is one of priority areas of power production development. One of the sources is wood biomass. Utilization of wood biomass in the regions with developed timber industry is a prospective decision in en...
Improving the Performance of Wood-Metal Slide Bearings for Forestry Machinery
The performance of slide bearings in forestry machines and equipment is largely determined by the load-carrying capacity and antifriction qualities that depend on the bearing capacity of the sleeve (insert) material, the...