Altitudinal limits of Berberis L. in Tajikistan

Davlatov, Sayfiddin Kh.; Baikova, Elena

doi:10.1134/s199542551102007x

Cited by 6 publications

(4 citation statements)

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“…Based upon his report, J. turkestanica can survive at a lower elevation and on drier sites than the other less adapted plants. As the author [44] emphasizes Junipers stands grow on the Qurama Range from 1300 m above sea level (als).…”

Section: Physical Settingsmentioning

confidence: 99%

Tree-Ring-Based Summer Temperature Minimum Reconstruction for Taboshar, Sogd Province, Tajikistan, Since AD 1840: Linkages to the Oceans

Zulfiyor¹,

Yu²,

Akylai³

et al. 2018

Preprint

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Despite the ecological importance of forest tree species, our study was motivated by scarce data on dendrochronology studies limited to the northwestern part of Tajikistan due to lack of access to such a part of the country which is difficult to access. Current studies on Junipers in the northwestern part of Tajikistan identified that tree ring-based climate reconstruction is possible.Cores of Juniperus Turkestanica from Taboshar area, Sogd province were developed into 176-year tree-ring width chronology. In the current study a summer (June-September) minimum temperature reconstruction spanning AD 1840-2016 was developed, which can explain 30.0% of the instrumental variableness for the period of 1940 . Five warmest (1856 -1866 , 1869 -1871 , 1907 -1916 , 1923 -1935 , 1988 and four coldest time periods (1840-1855, 1872-1906, 1917-1922, 1940-1984) were identified. The developed reconstruction coincides with cold and warm periods with prior investigations from tree-rings in China, Mongolia, Kyrgyzstan, Kazakhstan and Tajikistan. Spatial correlation analysis with the gridded minimum temperature data shows that the temperature reconstruction covers geographical representation over High Asia. Significant correlation was found between temperature reconstruction with summer SST, which suggests strong linkages of regional temperature variability with IndianOcean climate system. The obtained spectral peaks from the spectral analysis of the summer temperature reconstruction were significantly at 84.7-year (90%), 2.9-year (99%), 2.6-year (99%), 2.5-year (99%), 2.4-year (99%) and 2.2-year (99%).

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Section: Physical Settingsmentioning

confidence: 99%

Tree-Ring-Based Summer Temperature Minimum Reconstruction for Taboshar, Sogd Province, Tajikistan, Since AD 1840: Linkages to the Oceans

Zulfiyor¹,

Yu²,

Akylai³

et al. 2018

Preprint

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“…The study of endemic species of Middle Asia is carried out within the framework of long-term inter na tional cooperation of the Central Siberian Botanical Gar den SB RAS with research institutes of Uzbekistan and Tajikistan. Significant results have been obtained on mor pho logy, distribution and nomenclature (Davlatov & Baikova 2011, Ovchinnikova et al 2020, especially of repre sentatives of the Lamiaceae family (Bobokalonov et al 2020, Talovskaya 2020.…”

Section: Notes On Salvia Baldshuanica (Lamiaceae) An Endemic Species From Middle Asiamentioning

confidence: 99%

Notes on Salvia baldshuanica (Lamiaceae), an endemic species from Middle Asia

Turdiboev¹,

Baikova²,

Akbarov³

et al. 2021

Bot Pac

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We present a critical revision of information about rare and endangered endemic species Salvia baldshuanica (Lamiaceae), included in the Red Books of the USSR and Tajikistan. As the nomenclatural type had been missing, we assembled information on the original herbarium material performed a proper typification of the species name. A chorological analysis of the species distribution in Middle Asia was carried out. To assess the state of the current natural populations, a topographic mapping of localities (Sanglok mountains, two isolated local populations; Sarsaryak ridge, one local population) was made. A narrow edaphic confinement of plants of this species to gypsum-bearing mountain soils has been established. A taxonomic assessment of the key morphological traits of S. baldshuanica confirmed at least the sectional level of its position within the subgenus Leonia. The species was found in nature only three times – in 1883, 1937 and 1979, which confirms its exceptional rarity and high scientific interest.

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“…, Yr3 N, Yr9, Yr10, Yr17 and Yr27 in Central Asia was in Tajikistan (Yahyaoui et al 2012a, b). Eight barberry species have been reported in Tajikistan (Davlatov and Baikova 2011), which may play a role in disease epidemics and pathogen variation in the country since these species could potentially serve as alternate hosts for both Pgt and Pst.…”

Section: Introductionmentioning

confidence: 99%

Characterization of stem, stripe and leaf rust resistance in Tajik bread wheat accessions

et al. 2019

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Stem rust [causal organism: Puccinia graminis f. sp. tritici (Pgt)], stripe rust [Puccinia striiformis f. sp. tritici (Pst)], and leaf rust [Puccinia triticina (Pt)] are important fungal diseases of wheat in Central Asia and worldwide. Therefore, identification of seedling and adult plant resistance (APR) genes is of major importance for the national wheat breeding program in many countries. The objectives of this study were to identify genes that confer seedling and APR resistances in widely grown wheat cultivars, landraces and advanced lines from Tajikistan. A total of 41 wheat accessions were inoculated with eleven races of Pgt, twelve races of Pst and nine races of Pt for postulation of Sr (stem rust), Yr (yellow or stripe rust), and Lr Lr (leaf rust) resistance genes at the seedling stage. In addition, all of the accessions were tested in field trials for the response to stem rust and stripe rust. Genes for seedling stem rust resistance (i.e. Sr5, Sr6, Sr11, Sr31, and Sr38), stripe rust resistance (Yr9, Yr17, and Y27), and leaf rust resistance (Lr16 and Lr26) were postulated in the Tajik wheat. The presence of the pleiotropic APR genes Sr2/Yr30/ Lr27 (associated with pseudo-black chaff phenotype) and Lr34/Yr18/Sr57 (associated with leaf tip necrosis phenotype), and also Lr37 were assessed in the field and confirmed with linked molecular markers. In most of the wheat accessions, resistance genes could not be postulated because their infection types did not match the avirulence or virulence profile of the Pgt, Pst and Pt races tested. Six, seven, and nine accessions were identified that likely possess new genes for resistance to stem rust, stripe rust, and leaf rust, respectively, which have not been described previously. The research demonstrates the presence of effective seedling resistance and APR genes in widely grown wheat accessions that could facilitate further rust

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Altitudinal limits of Berberis L. in Tajikistan

Cited by 6 publications

References 1 publication

Tree-Ring-Based Summer Temperature Minimum Reconstruction for Taboshar, Sogd Province, Tajikistan, Since AD 1840: Linkages to the Oceans

Tree-Ring-Based Summer Temperature Minimum Reconstruction for Taboshar, Sogd Province, Tajikistan, Since AD 1840: Linkages to the Oceans

Notes on Salvia baldshuanica (Lamiaceae), an endemic species from Middle Asia

Characterization of stem, stripe and leaf rust resistance in Tajik bread wheat accessions

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