Genetic Variability in Pinus sylvestris, Picea obovata, and Abies sibirica Populations and in Felling in the Southern Taiga of Central Siberia

Тихонова, И. В.; Экарт, А. К.; Кравченко, А. Н.; Тихонова, Н. А.

doi:10.1134/s1022795421030133

Cited by 3 publications

(2 citation statements)

References 26 publications

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“…According to isoenzyme analysis, in general, the revealed level of genetic variability of half-sibs was within the limits established in other papers (Dzialuk and Burczyk, 2002;Bilgen and Kaya, 2007;Kosinska et al, 2007;Ivanek et al, 2013;Przybylski et al, 2015;Maňka et al, 2015;Yanbaev et al, 2020;Przybylski et al, 2020;Tikhonova et al, 2021). According to our isoenzyme analysis data the values of the expected and observed heterozygosity of Не and Но are within the following limits: 1st test site -from 17.90 to 26.40% and from 19.70 to 31.00%, respectively; 2nd test site -from 16.90 to 26.20% and from 19.50 to 30.50%, respectively.…”

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confidence: 82%

The growth rate and genetic variability of Scots pine (Pinus sylvestris L.) half-sibs in test crops of Northern Kazakhstan

KREKOVA,

CHEBOTKO,

KAGAN

et al. 2023

Not Bot Horti Agrobo

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Scots pine (Pinus sylvestris L.) is a valuable tree species, playing an important role in maintaining the ecological and economic balance not only in Kazakhstan, but also in many countries around the world. The purpose of this study was to assess the growth rate and to identify the genotypes of the half-sib progeny of Scotch pine plus trees in order to further obtain high-quality seeds with valuable genetic traits. A molecular genetic analysis was carried out using six microsatellite and 20 isoenzyme loci on 15 Scots pine half-sib families, represented by two samples of seeds collected in the subsequent harvesting periods (planted in 1986 and 1987), that evaluated the taxonomic characteristics such as tree height and trunk diameter (DBH, measured at 1.3 meters). Families with the highest growth rate in both samples were selected as candidates for the elite group. During the SSR analysis, a decrease in the level of expected heterozygosity (0.2377-0.5362 with an average value of 0.4593) was observed in P. sylvestris L. half-sibs compared to the sample of maternal plus trees (0.5444), with similar results to that of the “founder effect”. At the same time, the level of observed heterozygosity remained sufficiently high (0.3333-0.7037 with an average value of 0.4980 and 0.4556, respectively). During the isoenzyme analysis, the level of genetic variability either decreased or was similar to that of the maternal trees. Rare and unique alleles were found in seed samples of the analysed tree families. In general, this research showed that a comprehensive evaluation combining both traditional breeding methods (genetic assessment of progeny in the course of growth) and molecular genetic analysis is required for the selection of elite trees.

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Section: Discussion Discussion Discussionsupporting

confidence: 82%

The growth rate and genetic variability of Scots pine (Pinus sylvestris L.) half-sibs in test crops of Northern Kazakhstan

KREKOVA,

CHEBOTKO,

KAGAN

et al. 2023

Not Bot Horti Agrobo

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“…Altitudinal variations have been revealed in some studies carried out on Scotch pine (Turna, 2003;Turna and Güney, 2009;Şevik et al, 2010;Bilgen et al, 2011). Along with these, in Scotch pine, variations have been studied on the needle, pollen, cone, seed, seed wing, the number of cotyledons, seedling characteristics (Eliçin, 1971;Lučić et al, 2012), anatomical seed maturity (Harju et al, 1996), isoenzyme and DNA analysis (Prus-Glowacki andStephan, 1994, Vidyakin et al, 2015;Tereba et al, 2021;Tikhonova et al, 2021) made by using seed samples. Scotch pine with a wide vertical distribution showed significant variations at different altitude zones.…”

Section: Discussionmentioning

confidence: 99%

Morphogenetic variations of Pinus sylvestris L. seedlings depending on altitude

Güney

Atar

Turna

et al. 2023

Ormancılık Araştırma Dergisi

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The research aims to determine the morphogenetic variations of the seedling characters in populations representing the vertical distribution area of Scotch pine in Turkey and to reveal the within and among population variations in the vertical distribution areas. In the study, seedlings (three, four and five-year-old) grown from the seeds collected from five populations in the altitudinal zones up to 2250 m from sea level in the natural distribution area of Scotch pine in Trabzon region were used. Seedling length, root collar diameter, number of side branches, number of crown buds and sturdiness quotient were determined. As a result of the study, it has been determined that there are statistically significant differences among populations in different altitude zones. It is understood that the average seedling lengths increase in the transition from the 4th altitude zone to the 5th altitude zone in Zigana, while the height of the seedlings decreases in all three growth periods due to the increase in altitude in general. Also, in the transition from the 2nd elevation zone in Maçka to the 3rd elevation zone in Zigana, the mean root collar diameters increased. On the other hand, in seedlings at altitudes other than these, the root collar diameter averages decreased as the altitude increased. Moreover, populations located at high altitudes had a better sturdiness quotient value. All biological, forestry and technical measures should be taken to protect genetic resources in forestry, and the genetic diversity of forest trees should be transferred to future generations.

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Variability of Genetic nSSR Markers in Anthropogeneously Disturbed Scots Pine Populations in Middle and Western Siberia: Methodological Aspects of Genetic Monitoring

Tikhonova,

Ekart,

Kravchenko

et al. 2023

Contemp. Probl. Ecol.

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Genetic Variability in Pinus sylvestris, Picea obovata, and Abies sibirica Populations and in Felling in the Southern Taiga of Central Siberia

Cited by 3 publications

References 26 publications

The growth rate and genetic variability of Scots pine (Pinus sylvestris L.) half-sibs in test crops of Northern Kazakhstan

The growth rate and genetic variability of Scots pine (Pinus sylvestris L.) half-sibs in test crops of Northern Kazakhstan

Morphogenetic variations of Pinus sylvestris L. seedlings depending on altitude

Variability of Genetic nSSR Markers in Anthropogeneously Disturbed Scots Pine Populations in Middle and Western Siberia: Methodological Aspects of Genetic Monitoring

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