Geographical Distribution and Genetics of Siberian Larch Species

2009 ◽  
pp. 41-58 ◽  
Author(s):  
A. P. Abaimov
Keyword(s):  
Geographical Distribution ◽  
Siberian Larch ◽  
Larch Species

Hybridization capture of Larix candidate adaptive genes from sedimentary ancient DNA.

2021 ◽  
Author(s):  
Stefano Meucci ◽  
Luise Schulte ◽  
Kathleen R. Stoof-Leichsenring ◽  
Stefan Kruse ◽  
Konstantin Krutovsky ◽  
...  
Keyword(s):  
Ancient Dna ◽  
Dna Sequences ◽  
Environmental Changes ◽  
Genetic Material ◽  
Siberian Larch ◽  
Shotgun Sequencing ◽  
Adaptive Genetic Variation ◽  
Hybridization Capture ◽  
Sequencing Method ◽  
Larch Species

<p>Siberian larch forests dominate large areas of northern Russia and contribute important roles for the world´s ecosystem. In order to understand the past dynamics of larches and their adaptive genetic variation, sedimentary ancient DNA (sedaDNA) extracted from lake sediment cores is a crucial source of genetic material. The difficulty of retrieving extremely rare DNA sequences from samples reaching back up to 25000 years in age, is challenging. Previous studies (Schulte et al.) showed that the hybridization capture allowed an enrichment of targeted sequences by several orders of magnitude in comparison to shotgun sequencing method. Therefore, we established for the first time, a hybridization capture method targeting 65 candidate adaptive genes laying on the Larix nuclear genome. Our preliminary results showed the ability of our newly established method to enrich extremely rare DNA sequences of the targeted Larix candidate adaptive genes, which were not retrieved by shotgun sequencing method applied on the same samples. Furthermore, the results allowed to detect and compare specific nucleotide polymorphism of adaptive candidate genes among sedaDNA samples distributed in space and time. The establishment of this new method is laying the basis to investigate possible adaptive variation of larch species acquired across the dry and cold conditions of the Last Glacial Maximum (LGM); as well as their possible advantages or disadvantages in relation to the current environmental changes toward dry and warm conditions.</p>

scholarly journals Study results of pine and larch provenance trial in Serebryanoborsky experimental forest district

2020 ◽  
Vol 24 (6) ◽  
pp. 34-43
Author(s):  
M.D. Merzlenko ◽  
◽  
P.G. Melnik ◽  
Yu.B. Glazunov ◽  
A.A. Kozhenkova ◽  
...  
Keyword(s):  
Siberian Larch ◽  
Japanese Larch ◽  
Stem Volume ◽  
Larix Kaempferi ◽  
Provenance Trial ◽  
European Larch ◽  
Southern Sakhalin ◽  
Study Results ◽  
Larch Species ◽  
Forest District

The results of the cultivation of Scots pine (Pinus sylvestris L.) in the provenance trial in the Serebryanoborsky experimental forest district of the Institute of Forestry of the Russian Academy of Sciences are summarized. The silvicultural effect was assessed by a comprehensive indicator of the feasibility of introducing specific pine conventions. It was established that the use of pine seeds of exclusively local provenances cannot be considered justified. In the vast area of pine there are very remote populations of a local nature, the seed of which, when moved, can be successfully used to create highly productive artificial stands. The 68 year old geographical plantations of larch growth and production rates of 18 climotypes of 14 larch species were compared. These species are Polish larch (Larix polonica Racib.), European larch (Larix decidua Mill. f. Sudetica), Larix sukaczewii Dylis, Siberian larch (Larix sibirika Ledeb.), Larix cajanderi Mayr., Larix gmelinii Rupr., Larix Czekanovskii Szaf, Larix amurensis Kolesn., Olgan larch (Larix olgensis Henry), Japanese larch (Larix kaempferi (Lamb.) Carrière), Larix kurilensis Maur., Larix principis Rupprechtii Maur., Larix potaninii Bat, American larch (Larix laricina (Duroi) K. Koch). Polish larch, Japanese larch, European larch and Olgan larch have the best growth rate results. Climotypes from Siberia and American larch showed worst results. Polish larch (812 m3/ha) and Japanese (804 m3/ha) larch from the Southern Sakhalin have the highest stem volume. The final estimations showed that the climotypes of Polish larch, European larch from Sudetes and Japanese larch from the Southern Sakhalin are suitable for introduction in the Moscow Region. The climotypes from the Far East, namely Larix amurensis Kolesn., Olgan larch and Larix kurilensis Maur., had positive silvicultural effect. The inland climotypes from Asia together with American larch showed negative results.

scholarly journals Hereditary dependence of pigment composition in genus larch needles

2021 ◽  
Vol 25 ◽  
pp. 5-13
Author(s):  
A.O. Yesichev ◽  
◽  
N.N. Besschetnova ◽  
V.P. Besschetnov ◽  
◽  
...  
Keyword(s):  
Chlorophyll A ◽  
Siberian Larch ◽  
Individual Characteristics ◽  
Chlorophyll B ◽  
Pigment Composition ◽  
Phenotypic Differences ◽  
Larch Species ◽  
Absolute Height ◽  
The Russian Federation ◽  
The Individual

The content and ratio of plastid pigments in the conifers of three species of the larch genus (Larix Mill.) were studied: Siberian larch (L. sibirica Ledeb.), Gmelin’s larch (L. Gmelinii (Rupr.) Rupr.), Sukachev’s larch (L. Sukaczewii Dylis). Their seed progeny is concentrated on a pilot site in the Sergachsky forestry of the Nizhny Novgorod region with geographical coordinates 55°32 ‘14,2” N 45°28’01,0” E and an absolute height of 160 m. The site is assigned to the zone of coniferous-broad-leaved forests (the third forest-growing zone) and is included in the area of coniferous-broad-leaved (mixed) forests of the European part of the Russian Federation. The content of chlorophyll a, chlorophyll b and carotenoids in the needles was determined by spectrophotometric method at wavelengths: 665 nm, 649 nm, 452,5 nm. Samples for research were prepared in accordance with the principle of a single logical difference and randomized sample formation. Phenotypic differences in the pigment composition of needles between representatives of these species were revealed. The pigment composition of Siberian larch is dominated by chlorophyll a (3,76 ± 0,12 mg/g), significantly less chlorophyll b (1,87 ± 0,07 mg/g) and even less carotenoids (0,59 ± 0,02 mg/g). The same is observed in the pigment composition of other larch species. The hereditary conditionality of the species specificity of Siberian larch, Gmelin’s larch and Sukachev’s larch was established for all the tested characteristics. The greatest influence (29,84 ± 1,61 %) on the formation of the total phenotypic dispersion was observed in the ratio of the content of chlorophyll-a to the content of carotenoids, the least (5,89 ± 2,16 %) — in the content of dry matter in the needles. Relatively high values were obtained for the proportion of carotenoids (26,74 ± 1,68 %) and the ratio of their content to the total of chlorophylls (26,39 ± 1,69 %). The studied species showed an unequal level of similarity or significant differences in the individual characteristics of the pigment composition of needles.

Erannis jacobsoni. [Distribution map].

2010 ◽  
Author(s):  
Keyword(s):  
Geographical Distribution ◽  
Western Siberia ◽  
Far East ◽  
Siberian Larch ◽  
Dahurian Larch ◽  
Eastern Siberia ◽  
Distribution Map ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Erannis jacobsoni Diakonoff. Lepidoptera: Geometridae. Hosts: larch (Larix spp.), especially Dahurian larch (L. gmelinii) and Siberian larch (L. sibirica). Information is given on the geographical distribution in Europe (Russia, Eastern Siberia, Far East, Western Siberia), Asia (China, Nei Menggu, Japan, Hokkaido, Honshu, Shikoku, Kazakhstan, Mongolia).

Prediction of natural durability of commercial available European and Siberian larch by near-infrared spectroscopy

Holzforschung ◽  
2006 ◽  
Vol 60 (6) ◽  
pp. 643-647 ◽  
Author(s):  
Eva Sykacek ◽  
Notburga Gierlinger ◽  
Rupert Wimmer ◽  
Manfred Schwanninger
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Siberian Larch ◽  
Nir Spectroscopy ◽  
Natural Durability ◽  
Site Conditions ◽  
Gloeophyllum Trabeum ◽  
Larch Wood ◽  
Larch Species

Abstract The natural durability of larch wood is described as being highly variable, ranging from non-durable to durable. In this study, FT-NIR spectroscopy was investigated for its ability to predict the natural durability of commercially available larch wood. Samples originated from approximately 60 European and 25 Siberian larch trees, provided by three Austrian-based wood industries. Natural durability tests were performed using the test fungi Gloeophyllum trabeum and Coniophora puteana. FT-NIR spectra were recorded and average spectra were calculated for calibration modelling. The models were strong [R2 (CV)=70.7–95.19, RMSEP=0.063–0.026] and showed better suitability with spectra acquired from radial surfaces compared to those from axial surfaces. The prediction model was valid across larch species (European and Siberian), so that exact knowledge of the growth and site conditions was not required.

Ecology and biogeography in the introduction to “De bestiis marinis” by Georg Wilhelm Steller

2019 ◽  
Vol 46 (1) ◽  
pp. 63-74
Author(s):  
Stefano Mattioli
Keyword(s):  
Body Size ◽  
Phenotypic Plasticity ◽  
Geographical Distribution ◽  
Functional Traits ◽  
Marine Mammals ◽  
Main Part ◽  
Wide Distribution ◽  
Restricted Range ◽  
Direct Influence ◽  
Modern Biology

The rediscovery of the original, unedited Latin manuscript of Georg Wilhelm Steller's “De bestiis marinis” (“On marine mammals”), first published in 1751, calls for a new translation into English. The main part of the treatise contains detailed descriptions of four marine mammals, but the introduction is devoted to more general issues, including innovative speculation on morphology, ecology and biogeography, anticipating arguments and concepts of modern biology. Steller noted early that climate and food have a direct influence on body size, pelage and functional traits of mammals, potentially affecting reversible changes (phenotypic plasticity). Feeding and other behavioural habits have an impact on the geographical distribution of mammals. Species with a broad diet tend to have a wide distribution, whereas animals with a narrow diet more likely have only a restricted range. According to Steller, both sea and land then still concealed countless animals unknown to science.

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