Kyrgyz Academy of science

Bishkek, Kyrgyzstan

Kyrgyz Academy of science

Bishkek, Kyrgyzstan
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Kirscher U.,Curtin University Australia | Kirscher U.,Ludwig Maximilians University of Munich | Bachtadse V.,Ludwig Maximilians University of Munich | Mikolaichuk A.V.,Kyrgyz Academy of science | And 2 more authors.
International Geology Review | Year: 2017

We present new palaeomagnetic data for Cambrian and Ordovician volcanic and sedimentary rocks from the Kyrgyz North Tianshan (NTS) and review available data from the southwestern Central Asian Orogenic Belt (CAOB) to elucidate the tectonic history and evolution of this region during the early Palaeozoic. We observed a coherent evolution of the NTS and the Kazakhstan continent (or Kazakhstania) with a constant northwards movement between the Cambrian and Devonian at ∼5 cm/a. After the northwards movement ceased in the Devonian, the accreted terrane assemblage of Kazakhstania occupied a stable latitudinal position at ∼30°N until the final amalgamation of Eurasia occurred in the late Carboniferous to early Permian. Amalgamation of the Tarim and Turan blocks caused a counterclockwise bending within the southwestern segment of the CAOB, which occurred in an inconsistent way by a brittle-like response of the upper crust with a large variety of rotational movement. We suggest an evolution of the Kyrgyz CAOB terranes by steady migration away from Gondwana and subsequent capture in a zone of global downwelling at ~30°N, where accretion and subsequent amalgamation of Eurasia occurred with the CAOB terranes in its centre. © 2017 Informa UK Limited, trading as Taylor & Francis Group

Lazkov G.A.,Kyrgyz Academy of science | Sennikov A.N.,University of Helsinki | Sennikov A.N.,RAS Komarov Botanical Institute
Memoranda Societatis pro Fauna et Flora Fennica | Year: 2015

A new series of notes on distribution, taxonomy, morphology and nomenclature of some vascular plants in Kyrgyzstan is presented. Carex subphysodes Popov ex V.Krecz., Astragalus sogdianus Bunge, Oxytropis ferganensis Vass. and Iris maracandica (Vved.) Wendelbo (all native), and also Delphinium orientalis J.Gay (alien) are reported as new to Kyrgyzstan. Sedum tetramerum Trautv. is new to Northern Tian-Shan, and Scirpoides holoschoenus (L.) Soják is new to Chatkal Range and Western Tian-Shan within Kyrgyzstan. The distribution area of Torilis arvensis (Huds.) Link is revised and expanded, and the distribution of Eremurus zoae Vved. (endemic to Kyrgyzstan) is verified and mapped. New names and combinations, Betonica sect. Foliosae (Krestovsk. & Lazkov) Lazkov, Eriophyton anomalum (Juz.) Lazkov & Sennikov, Kudrjaschevia sect. Jacubianae Lazkov, Lagochilus sect. Chlainanthus (Briq.) Lazkov, Leonurus sect. Panzerioidei (Krestovsk.) Lazkov, Phlomoides sect. Pseuderemostachys (Popov) Lazkov, and Scutellaria sect. Ramosissimae Lazkov, are provided as a result of the forthcoming monographic revision of Lamiaceae. Two hybrids are described in Eremurus, E. fuscus × E. cristatus = E. ×nikitinae Lazkov and E. cristatus × E. zoae = ×E. gypsaceus Lazkov. Places of valid publication and the authorship of Iris svetlanae (Vved.) T.Hall & Seisums and Erianthera anomala Juz. are corrected. Iris svetlanae is synonymized with I. maracandica. A new colour form (with pinkish fowers) of Betonica betoniciflora (Rupr. ex O.Fedtsch. & B.Fedtsch.) Sennikov is described. English-language designations are provided for the map of biogeographic provinces of Kyrgyzstan.

Lazkov G.A.,Kyrgyz Academy of science | Sennikov A.N.,University of Helsinki | Sennikov A.N.,RAS Komarov Botanical Institute | Koichubekova G.A.,Kyrgyz Academy of science | Naumenko A.N.,8 district 30b 78
Memoranda Societatis pro Fauna et Flora Fennica | Year: 2014

A series of notes on distribution, taxonomy, morphology and nomenclature of some vascular plants in Kyrgyzstan is presented. The presence of Scutellaria popovii Vved. in Talas Range is confirmed and documented with herbarium specimens, and this species is mapped. The known distributions of Galinsoga parvifiora Cav. and Reseda lutea L., established invasive aliens, are documented with many new records and mapped. Eminium alberti (Regel) Engl. ex B. Fedtsch., Iris inconspicua (Vved.) T. Hall & Seisums, I. khassanovii Tojibaev et Turginov and Lagopsis flava Kar. et Kir. are reported as new to Kyrgyzstan. Astragalus testiculatus Pall., Corydalis glaucescens Regel, Morina parviflora Kar. et Kir., Pedicularis karatavica Pavlov, Tulipa turkestanica (Regel) Regel are reported as new to Talas Range, and Iris narbutii O. Fedtsch. as new to Alay Range. The distributions of Iris linifolia (Regel) O. Fedtsch. and I. narynensis O. Fedtsch. in Kyrgyzstan are verified and mapped. Iris zenaidae (Vved.) F.O. Khass. & Rakhimova is reduced to the synonymy of I. graeberiana Sealy; this species is reported as new to many territories of Western Tian-Shan. A new combination, Iris rodionenkoi (Lazkov & Naumenko) Lazkov & Sennikov is provided for Juno rodionenkoi Lazkov & Naumenko. The species known as Cephalorrhynchus polycladus (Boiss.) Kirp. is transferred to Lactuca as L. piestocarpa (Boiss.) Sennikov, comb. nov. with a new section, L. sect. Zollikoferiastrum (Kirp.) Sennikov, comb. nov.; this species is new to Kyrgyzstan.

Sennikov A.N.,University of Helsinki | Sennikov A.N.,RAS Komarov Botanical Institute | Lazkov G.A.,Kyrgyz Academy of science
Memoranda Societatis pro Fauna et Flora Fennica | Year: 2013

A series of notes on distribution, taxonomy, morphology and nomenclature of some vascular plants in Kyrgyzstan is presented. One transfer in Lamiaceae, Betonica betoniciflora is proposed because of priority under the current phylogeny; a white-flowered form is described within this species. Youngia serawschanica (Crepidifolium serawschanicum) is moved to Crepidiastrum, following the phylogenetic studies in Cichorieae. The only species of the former genus Modestia, M. darwa-sica is transferred to Jurinea because of its nested position in the molecular phylogeny. Jurinea sect. Anacantha is proposed for the placement of this species in the system of Jurinea. Modestia jucunda, M. mira and M. pteroclada are established as new synonyms of Jurinea darwasica. New substitute names Phlomoides codonantha and P. deserticola, new combinations P. dshungarica and P. karatavica, and three new sectional names are proposed in connection with the synonymi-zation of Eremostachys and Paraeremostachys with Phlomoides. Fritillaria ferganensis is resurrected from the synonymy of F. walujewii; an identification key is provided, and the distributions of both species in Kyrgyzstan are mapped. Lectotypes are designated for Crepis distincta and Fri-tillaria walujewii. Allium setifolium is new to Ili Ala-Too, Arctium echinopifolium (Hypacanthium echinopifolium) to Kyrgyz Range, Saussurea vvedenskyi to Talas Ala-Too, Hypopitys hypophegea to Chatkal Range. Rhaponticum namanganicum is recorded on the S side of Chatkal Range, extending the distribution area southwards.

Sennikov A.N.,University of Helsinki | Sennikov A.N.,RAS Komarov Botanical Institute | Lazkov G.A.,Kyrgyz Academy of science | Uotila P.,University of Helsinki | Weber H.E.,University of Vechta
Memoranda Societatis pro Fauna et Flora Fennica | Year: 2011

A series of notes on distribution, taxonomy and nomenclature of some vascular plants in Kyrgyzstan is presented. Two new hybrids (Delphinium x pskemense Sennikov & Lazkov, Perovskia x intermedia Lazkov) are described. The variety Rhinactinidia limoniifolia var. brachyglossa Lazkov & Sennikov and forma Rubus praecox Bertol. f. rutiliflorus H.E.Weber & Sennikov are described for unusual morphotypes of these species. Five transfers from Pyrethrum to Richteria (R. brachanthemoides (Kamelin & Lazkov) Sennikov, R. neglecta (Tzvelev) Sennikov, R. sovetkinae (Kovalevsk.) Sennikov, R. sussamyrensis (Lazkov) Sennikov, R. sect. Trichanthemopsis (Tzvelev) Sennikov) are proposed in conformity with the phylogeny of Anthemideae. Nomenclature is discussed and lectotype is designated for Achillea biebersteinii Afan. Three transfers (Arctium nidulans (Regel) Sennikov, A. sect. Plagiocephalum (Rupr.) Sennikov, Harmsiella olgae (Regel) Sennikov) are proposed because of priority under the current phytogeny of Asteraceae and Lamiaceae. Ten native species (Centaurea chartolepis Greuter, Cousinia hamadae Juz.,Hypopitys hypophegea (Walk.) G.Don, Lemna turionifera Landolt, Lycopus exaltatus L. f., Portulaca granulatostellulata (Poelln.) C.Ricceri & P. V.Arrigoni, P. nitida (Danin & H.G.Baker) C.Ricceri & P. V.Arrigoni, Ranunculus acris L., Rubia laevissima Tschern., Zygophyllum miniatum Cham.) and two aliens (Calystegia spectabilis (Brummitt) Tzvelev, Rubus praecox Bertol.) are new to Kyrgyzstan. Ten species are new to certain mointain ranges. The presence of Sorbus turkestanica (Franch.) Hedl. in Kyrgyzstan is confirmed; this species and S. pérsica Hedl. are mapped anew for conservation purposes. Otostegia nikitinae Scharasch. and O. schennikovii Scharasch. are synonyms of Harmsiella olgae and therefore need no protection in Kyrgyzstan.

Kirscher U.,Ludwig Maximilians University of Munich | Bilardello D.,University of Minnesota | Mikolaichuk A.,Kyrgyz Academy of science | Bachtadse V.,Ludwig Maximilians University of Munich
Geophysical Journal International | Year: 2014

High-quality palaeomagnetic data for the early Carboniferous of Central Asia are scarce and the palaeogeographic evolution of this area prior to final amalgamation of the region east of the Ural mountains is still rather obscure. Here, we present palaeomagnetic data for early Carboniferous deposits from two areas in the Kyrgyz North Tianshan (NTS). Detailed rockmagnetic analysis indicates the presence of magnetite and haematite as magnetic carriers in these red sediments. In the Kazakh basin section (KEL), we identify a high-temperature component (HTC) of magnetization during stepwise thermal demagnetization at temperatures of up to ~680 °C yielding a site mean direction of D = 176.2°, I = -36.4°, k = 57.4 and α95 = 8.9° after tilt correction. Two HTCs of magnetization were identified in samples from the Sonkul Basin (DUN) with maximum blocking temperatures of ~600 °C (magnetite) and ~680 °C (haematite). The magnetite component was also identified with alternating field demagnetization. The resulting site mean directions for these two components identified in 16 and 14 sites, respectively, are D = 149.3°, I = -50.3°, k = 73.6 and α95 = 4.3° for the magnetite and D = 139.6°, I = -35.1°, k = 71.6 and α95 = 4.7° for the haematite component. All three mean directions show a significant increase of the precision parameter k after tilt correction indicating acquisition of the high-temperature magnetization prior to the main folding event in the Jurassic. We explain the difference of the two components of DUN by a process of inclination bias due to compaction to which the platy haematite particles are more susceptible. Applying the elongation-inclination (E/I) method to directional data from over 100 individual samples from location DUN results in a negligible correction for the magnetite component (<5°), whereas the inclination of the haematite component corrects from -35.0° to -50.3° (f = 0.6, error interval -41.4° to -57.9°), which is then equal to the uncorrected magnetite inclination. The small number of samples from section KEL does not allow application of the E/I technique and inclination correction based on high field anisotropy of isothermal remanent magnetization was applied, yielding a corrected inclination of -75.2° ± 4°. Assuming comparable degrees of compaction for both study areas and applying the flattening factor obtained in DUN on samples from KEL, however, would result in comparable inclinations. The identification of inclination shallowing at both sections indicates that the age of magnetization is close to the deposition age. Assuming a reversed polarity of the directions from both areas results in palaeolatitudes of ~30°N for section DUN and ~60°N for the anisotropy-based correction of section KEL. The large difference, however, is geologically very unlikely. The inclination of the magnetite component of DUN (unaffected by inclination shallowing) favours a palaeoposition of ~30°N. This is supported by the inclination shallowing corrected haematite component of DUN yielding a comparable inclination. Therefore, our results indicate that the NTS domain was situated at ~30°N in the early Carboniferous. Furthermore, the NTS zone was probably not connected to Baltica or Siberia prior to the late Palaeozoic. © The Authors 2014. Published by Oxford University Press on behalf of The Royal Astronomical Society.

Yudin N.S.,RAS Institute of Cytology and Genetics | Aitnazarov R.B.,RAS Institute of Cytology and Genetics | Knyazev S.P.,Novosibirsk State University | Bekenev V.A.,Siberian Research Institute for Animal Husbandry | And 3 more authors.
Russian Journal of Genetics: Applied Research | Year: 2014

A tradeoff between reproductive success and immunity is observed in wild and laboratory animals due to the limited energy resources of an organism. Therefore, artificial selection of farm animals for reproductive indices may be accompanied by a reduced immune response. Formerly, a single-nucleotide polymorphism in the PANE1 gene for a minor histocompatibility antigen was demonstrated to be positively associated with immunological blood indices and negatively associated with birthweight in Landrace pigs (Huang et al., 2010). The purpose of the present study was to determine the frequency of the SNP in domestic pigs and wild boars and to analyze its association with reproductive indices in pigs of the Large White breed. Wild boars, domestic Landrace pigs, and Large White pigs did not differ significantly in the frequency of the rare G allele of PANE1: 11.8, 12.2, and 20.0%, respectively. Carriage of the CG genotype in females reduced the live litter size and weight. © 2014, Pleiades Publishing, Ltd.

Youn J.H.,Korea University | Youn J.H.,Korea Basic Science Institute | Seong Y.B.,Korea University | Choi J.H.,Korea Basic Science Institute | And 2 more authors.
Catena | Year: 2014

Loess deposits on the northern slopes of the Kyrgyz Tien Shan were examined. Their particle size characteristics show silt size dominancy (>. 80%) with minor contribution from sand (12%) and clay (7%). The loess was dated using optically stimulated luminescence (OSL) and radiocarbon methods to define the timing of deposition. The OSL ages of fine and coarse quartz fractions were consistent with each other within 2σ uncertainty level, except several samples deposited during MIS 2. Based on the OSL ages, four major loess depositional periods are recognized in the northern Kyrgyz Tien Shan during the Late Quaternary: the Holocene, MIS 2, MIS 3, and MIS 4. The rate of dust accumulation in the northern Tien Shan during MIS 2 was greater than that during MIS 3 or MIS 4. This implies that cold-dry conditions varied significantly during the Late Quaternary in the study area. The accumulation patterns of the Kyrgyz loess deposits in the northern Tien Shan are closely related to climate fluctuations during the Late Quaternary, influenced by changes in the mid-latitude westerlies, Asian summer monsoons, and Siberian High Pressure (SHP) systems, during which there was no significant cessation of deposition. © 2013 Elsevier B.V.

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