Chalky Highlands in Orenburg Oblast, a Unique Habitat for Rare Plant Species and Plant Communities
In: Arid ecosystems, Band 9, Heft 2, S. 89-96
ISSN: 2079-0988
7 Ergebnisse
Sortierung:
In: Arid ecosystems, Band 9, Heft 2, S. 89-96
ISSN: 2079-0988
In: Arid ecosystems, Band 13, Heft 4, S. 412-418
ISSN: 2079-0988
In: Arid ecosystems, Band 7, Heft 1, S. 41-48
ISSN: 2079-0988
In: Proceedings of the National Academy of Sciences of Belarus, Biological Series, Band 64, Heft 2, S. 229-237
ISSN: 2524-230X
The study of rare plants at the level of cenothic populations throughout the range greatly contributes to the identification of the features of their biology and ecology. We carried out the identification of the features of the age and spatial structure of the Adenophora lilifolia (L.) A. DC. cenothic populations in the ecological conditions of the steppe, foreststeppe zones of the Middle Volga (Samara region) and the Southern Urals (Republic of Bashkortostan), as well as the mountainous zone of the Southern Urals. Adenophora lilifolia is included in the Red Book of the Samara region (category 3 – a rare species).The study of A. lilifolia populations was carried out in different years on the territory of specially protected territories of different rank. In determining the structure of cenothic populations, standard techniques were used. The studied cenopopulations are located on the fringes of oak-lime, birch, less often maple-linden or aspen forests, sparse forests or forest potholes. The total density of individuals varies from 0.8 to 4.2 specimens/m2. The mean values of the generative fraction in the populations are 81.1 %, the prevalent fraction is 19.3 %. The basic ontogenetic spectrum of A. lilifolia is characterized as centered. Although the share of generative individuals in all cenopopulations is high, the distribution by ontogenetic groups in the two regions differs. The average values of demographic indices indicate a fairly high stability of the species populations. Of the 14 investigated cenopopulations of A. lilifolia, according to the "delta-omega" criterion, most are mature, in addition, transitional and maturing are identified. In general, the state of the populations in the Southern Urals is fairly prosperous. All studied populations in the Samara region have a high anthropogenic load, and the number of individuals in specific habitats is low.
In: Arid ecosystems, Band 12, Heft 3, S. 279-285
ISSN: 2079-0988
In: Сибирский экологический журнал, Band 28, Heft 5, S. 557-568
To access publisher full text version of this article. Please click on the hyperlink in Additional Links field. ; A trio of genome-wide association studies recently reported sequence variants at three loci to be significantly associated with schizophrenia. No sequence polymorphism had been unequivocally (P<5 × 10(-8)) associated with schizophrenia earlier. However, one variant, rs1344706[T], had come very close. This polymorphism, located in an intron of ZNF804A, was reported to associate with schizophrenia with a P-value of 1.6 × 10(-7), and with psychosis (schizophrenia plus bipolar disorder) with a P-value of 1.0 × 10(-8). In this study, using 5164 schizophrenia cases and 20,709 controls, we replicated the association with schizophrenia (odds ratio OR = 1.08, P = 0.0029) and, by adding bipolar disorder patients, we also confirmed the association with psychosis (added N = 609, OR = 1.09, P = 0.00065). Furthermore, as it has been proposed that variants such as rs1344706[T]-common and with low relative risk-may also serve to identify regions harboring less common, higher-risk susceptibility alleles, we searched ZNF804A for large copy number variants (CNVs) in 4235 psychosis patients, 1173 patients with other psychiatric disorders and 39,481 controls. We identified two CNVs including at least part of ZNF804A in psychosis patients and no ZNF804A CNVs in controls (P = 0.013 for association with psychosis). In addition, we found a ZNF804A CNV in an anxiety patient (P = 0.0016 for association with the larger set of psychiatric disorders). ; European Union LSHM-CT-2006-037761 PIAP-GA-2008-218251 HEALTH-F2-2009-223423 National Genomic Network (NGFN-2) of the German Federal Ministry of Education and Research (BMBF) National Institute of Mental Health R01 MH078075 Center of Excellence for Complex Disease Genetics of the Academy of Finland 213506 129680 Biocentrum Helsinki Foundation and Faculty of Medicine, University of Helsink info:eu-repo/grantAgreement/EC/FP7/218251
BASE