Baum B.R.,Agriculture and Agri Food Canada |
Yang J.-L.,Sichuan Agricultural University |
Yen C.,Sichuan Agricultural University |
Agafonov A.V.,Central Siberian Botanical Garden
Journal of Systematics and Evolution | Year: 2011
We have classified 11 species recently recognized as belonging to the genus Elymus into a resurrected and legitimate genus Campeiostachys Drobov according to the International Code of Botanical Nomenclature. Our action is based on the rationale of monophyly, discrimination, and practicality discussed in detail. Currently Elymus contains a vast number of species with different genomes which often, but not always, can be differentiated by cytological and molecular features, but are difficult to separate by traditional morphology, although an effort to do so is detailed and discussed. This difficulty can be attributed to the dominance effect of a particular genome on the other genome(s) present. Campeiostachys, with genome constitution StStHHYY, is a recent addition to a number of genera recently segregated out of Elymus, i.e. Douglasdeweya (StStPP), Kengyilia (StStPPYY), and Roegneria (StStYY, StStStStYY). A key to Campeiostachys taxa is provided, along with taxa descriptions, distribution, nomenclature, and cytology. Nineteen nomenclatural novelties, or combinations, resulted from this work, 10 species names, and nine varietal names. © 2011 Institute of Botany, Chinese Academy of Sciences.
Mandak B.,Academy of Sciences of the Czech Republic |
Mandak B.,Czech University of Life Sciences |
Krak K.,Academy of Sciences of the Czech Republic |
Krak K.,Czech University of Life Sciences |
And 12 more authors.
Perspectives in Plant Ecology, Evolution and Systematics | Year: 2016
The significance of the wide interspecific variation in nuclear genome size of angiosperms is still not fully understood. It has been repeatedly suggested, however, that genome size can impose phenotypic constraints on plant development, phenology and ecological performance. We analysed nuclear genome size variation in diploid and polyploid species of Chenopodium s. lat. within a phylogenetic framework using flow cytometry of 456 accessions from 175 populations of 49 species: 32 diploids, 12 tetraploids, 4 hexaploids, and one decaploid. To this end, we also determined chromosome numbers and did an ITS-based phylogenetic reconstruction to analyze genome size variation using the phylogenetic generalized least-squares approach (PGLS). Results of these experiments can be summarized as follows. (1) We report the first chromosome counts for five Chenopodium species. (2) Flow cytometry determined that 2C and 1Cx DNA values differed up to 7.83- and 3.60-fold, respectively, with the lowest 1Cx value for C. schraderianum (0.412 pg) [excluding tetraploid (2n = 4 x = 32) C. ambrosioides with x = 8 and 1Cx DNA content 0.279 pg] and the highest for C. californicum (1.484 pg). (3) Our extended phylogeny confirms the existence of previously recognized basic evolutionary lineages while underscoring the need to further increase taxon sampling for a full understanding of relationships in Chenopodioideae. (4) Our analysis of genome size evolution estimated the ancestral genome size of Chenopodium s. lat. at 0.541 pg/1Cx. In addition, the data revealed a correlation between 1Cx DNA content and ploidy level. Moreover, the PGLS approach indicated that the genome size variation (i) followed the random walk model, indicating no unambiguous trend towards genome size increase or decrease; (ii) was correlated with phylogeny (λ = 0.987); (iii) evolved gradually (κ = 2.256); and (vi) occurred rather late after speciation, which can be attributed to species-specific adaptation (δ = 3.000). (5) There are indications that several ecological traits were significantly associated with 2C DNA content. While mean plant height, maximum plant height, fruit diameter and life form were positively correlated with genome size, the species’ continent of origin showed no correlation. In summary, the strong phylogenetic signal detected in genome size of Chenopodium indicates that its genome size variation is significantly associated with phylogenetic divergence. We herein suggest a pattern of species-specific adaptations in the evolution of Chenopodium genome size. © 2016 Elsevier GmbH
Erst A.A.,Altai State University |
Erst A.S.,Tomsk State University |
Shaulo D.N.,Central Siberian Botanical Garden
Taiwania | Year: 2014
The method of preservation and in vitro propagation of rare species Dianthus mainensis was offered. Seeds were used as starting material for in vitro propagation. Explants were cultured on MS medium supplemented with BAP and NAA. The greatest number of shoots was obtained when supplementing 3 μM BAP (5.5 shoots per an explant). This medium provided direct morphogenesis without appearance of somaclonal variants. Rooting of shoots in vitro observed when using half strength MS medium without growth regulators. Regenerants of Dianthus mainensis were successfully adapted and transferred to the experimental field.
Uotila P.,University of Helsinki |
Lomonosova M.N.,Central Siberian Botanical Garden
Annales Botanici Fennici | Year: 2016
Chenopodium acerifolium Andrz. and C. karoi (Murr) Aellen have often been confused with each other and with similar taxa occurring in the northernmost parts of Russia. In particular their relationships with C. prostratum Bunge ex Herder nom. illeg. and C. jenissejense Aellen and Iljin have not been clear. The type material of C. jenissejense is heterogeneous and here we designate the lectotype for it so that C. jenissejense will be probably conspecific with C. prostratum, for which the lectotype is also designated here. We provisionally consider C. jenissejense, a Siberian riverside plant, to be conspecific with the mainly Central Asian C. karoi, but further studies are needed to confirm their relationships. Emended morphological descriptions are given of C. acerifolium and C. karoi and their types are discussed. Paul Aellen's role in the taxonomic treatment of C. karoi s. lato and in preparing the account of Chenopodium for the Flora of the USSR is clarified based on the correspondence between Aellen and M.M. Iljin. © 2016 Finnish Zoological and Botanical Publishing Board.
Dobrovolskaya O.B.,RAS Institute of Cytology and Genetics |
Badaeva E.D.,Russian Academy of Sciences |
Adoninaa I.G.,RAS Institute of Cytology and Genetics |
Popova O.M.,RAS Institute of Cytology and Genetics |
And 2 more authors.
Russian Journal of Developmental Biology | Year: 2014
Using C-banding and FISH methods, the karyotype of MC1611 induced mutant of bread wheat, which develop additional spikelets at a rachis node (trait “supernumerary spikelets”) was characterized. It was determined that the mutant phenotype is not associated with aneuploidy and major chromosomal rearrange-ments. The results of genetic analysis showed that supernumerary spikelets of the line are caused by a muta-tion of the single Bh-D.1 gene, influenced by the genetic background. The mutation causes a bnormalities of inflorescence morphogenesis associated with the development of ectopic spikelet meristems in place of floral meristems in the basal part of the spikelets, causing the appearance of additional spikes at a rachis node. The mutant phenotype suggests that the Bh-D gene determines the fate of the lateral meristems in ear, which develops as floral meristem and gives rise to floral organs in wild-type inflorescences. In the Bh-D.1 mutant, the floral meristem identity is impaired. The characterized mutant can be used in further studies on molecular genetic basis of development of wheat inflorescence. © Pleiades Publishing, Inc., 2014.
Erst A.S.,Tomsk State University |
Sukhorukov A.P.,Moscow State University |
Shaulo D.N.,Central Siberian Botanical Garden |
Kuznetsov A.A.,Tomsk State University
Acta Botanica Gallica | Year: 2015
The distribution of the enigmatic Mongolian Aquilegia ganboldii is confirmed for Russian South Siberia, North Korea and northeast China. It seems to be closely related to Aquilegia oxysepala var. oxysepala and Aquilegia buergeriana. A diagnostic key to A. ganboldii and related taxa is provided. © 2015 Société botanique de France.
Gulyaeva A.F.,Kemerovo State University |
Lashchinskiy N.N.,Central Siberian Botanical Garden |
Revushkin A.S.,Tomsk State University |
Kuznetsov A.A.,Tomsk State University
International Journal of Environmental Studies | Year: 2015
This article concerns the spatial distribution patterns of small-leaved forests in the Kuznetsk Depression, where these communities are the forest components of zonal vegetation. Two levels of spatial forest heterogeneity are described. Depending on mesorelief, forest communities are organized into topo-ecological series, which differ in sets of components and area covered by different elements. On a larger scale, depending on climatic features in different parts of the depression, the spatial pattern of communities and topo-ecological series reflect the zonal structures. In general, the spatial forest distribution is considered as follows: the central part of the depression is covered by Artemisio – Betuletum communities in combination with Calamagrostio – Betuletum forests; approaching the eastern border of the depression, they change to Trollio – Populetum and Campanulo – Betuletum combinations; the southern part is occupied by communities of Campanulo – Betuletum, together with Saussureo – Populetum forests; in the north-western part the only forest association is Primulo – Betuletum. Throughout the entire region, in places with bad drainage occur communities of Carici – Betuletum. Based on climatic parameters, forest-steppe and sub-taiga sub-belts can be distinguished. Forest-steppe in its turn can be divided into an original fragment of plain forest-steppe and typical forest-steppe. In the eastern part of the depression, a sub-taiga sub-belt developed but in the western part, it exists outside the depression. © 2015 Taylor & Francis.
Ermakov N.,Central Siberian Botanical Garden |
Makhatkov I.,Institute of Soil Science and Agrochemistry
Plant Biosystems | Year: 2011
A classification of northern boreal light coniferous forests in the West Siberian plain has been developed using the Braun-Blanquet approach. In the northern part of the West-Siberian plain, boreal coniferous forests occur at the northern limit of their range characterized by a cold continental climate and the prevalence of long-frozen, poorly drained soils in watersheds. All syntaxa were assigned to the class Vaccinio-Piceetea Br.-Bl. in Br-Bl., Siss. & Vlieger 1939. Association Pinetum sibiricae-sylvestris Makhatkov et Ermakov 2010 has been included in the alliance Cladonio stellaris-Pinion sylvestris K.-Lund 1986, order Pinetalia sylvestris Oberd. 1957. Associations Melampyro pratense-Laricetum sibiricae ass. nova hoc loco and Ledo-Pinetum sibiricae ass. nova hoc loco have been included in the alliance Pino sibiricae-Laricion sibiricae Ermakov in Ermakov et Alsynbayev 2004 and the order Ledo palustris-Laricetalia cajanderi Ermakov in Ermakov et Alsynbayev 2004. Results of detrended correspondence analysis ordinations demonstrate a strong floristic integrity of the higher syntaxonomic units and clear syntaxonomic boundary between north boreal forests of the Vaccinio-Piceetea and swamp forests of the Oxycocco-Sphagnetea in spite of transitional floristic features in the majority of communities. © 2011 Copyright Taylor and Francis Group, LLC.
Selyutina I.Y.,Central Siberian Botanical Garden |
Zibzeev E.G.,Central Siberian Botanical Garden
Contemporary Problems of Ecology | Year: 2016
This article presents the results of an analysis of ontogenetic and vitality structure of seven cenopopulations of Oxytropis sulphurea (Fisch. ex DC.) Ledeb. in the high-altitude conditions of Rydny Altai (Ivanovsky and Prohodnoi ridges) and the Saur Ridge. In the study of the demographic structure it has been determined that most populations from undisturbed habitats are characterized by left-side spectrums with maximums on juvenile or immature individuals. The changes in the structure of the studied ontogenetic spectrums of this species depend largely on the presence of anthropogenic influence. Grazing pressure has led to the formation of spectrums with a maximum on g3 plants. The vitality type of the O. sulphurea populations varies from exuberant to depressed; the depressed and balanced types of vitality prevailed. Intensive seed propagation provides a stable existence of O. sulphurea in the high-mountain alpine zone. The results of our study show that O. sulphurea is an alpine-meadow species which has strict ecological and cenotic propensity for alpine meadows with the prevalence of Festuca kryloviana, Anthoxanthum alpinum, and Schulzia crinite and shrub tundras with Dryas oxyodonta. © 2016, Pleiades Publishing, Ltd.
Erst A.S.,Central Siberian Botanical Garden |
Sukhorukov A.P.,Moscow State University
Taiwania | Year: 2011
The records of Ranunculus longicaulis and R. pseudohirculus are cited from Nepal. Both species were earlier identified as R. pulchellus. The key for delimitation as well as taxonomic notes of these three species are provided. Some populations from Central Asia and Himalayas differ in pubescence details and morphometry.