Drought Stress Tolerance and Photosynthetic Activity of Alloplasmic Lines T. dicoccum x T. aestivum
| Autor: | Elena A. Salina, Nazira A. Altayeva, Nina Terletskaya, Michail A. Nesterov, Irina V. Blavachinskaya, Roman N Perfil'ev, Andrey B. Shcherban |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Photosystem II Drought tolerance drought tolerance Introgression Biology Photosynthesis 01 natural sciences Catalysis Inorganic Chemistry lcsh:Chemistry 03 medical and health sciences Botany DREB Physical and Theoretical Chemistry Common wheat Allele Molecular Biology Gene lcsh:QH301-705.5 Spectroscopy Regulator gene photosynthesis Organic Chemistry fungi food and beverages General Medicine SSR Computer Science Applications 030104 developmental biology lcsh:Biology (General) lcsh:QD1-999 rps19-p genes orf256 alloplasmic wheat lines 010606 plant biology & botany |
| Zdroj: | International Journal of Molecular Sciences, Vol 21, Iss 3356, p 3356 (2020) International Journal of Molecular Sciences Volume 21 Issue 9 |
| ISSN: | 1661-6596 1422-0067 |
| Popis: | Tetraploid species T. dicoccum Shuebl is a potential source of drought tolerance for cultivated wheat, including common wheat. This paper describes the genotyping of nine stable allolines isolated in the offspring from crossing of T. dicoccum x T. aestivum L. using 21 microsatellite (simple sequence repeats&mdash SSR) markers and two cytoplasmic mitochondrial markers to orf256, rps19-p genes evaluation of drought tolerance of allolines at different stages of ontogenesis (growth parameters, relative water content, quantum efficiency of Photosystem II, electron transport rate, energy dissipated in Photosystem II) and the study of drought tolerance regulator gene Dreb-1 with allele-specific PCR (AS-MARKER) and partial sequence analysis. Most allolines differ in genomic composition and T. dicoccum introgressions. Four allolines&mdash D-b-05, D-d-05, D-d-05b, and D-41-05&mdash revealed signs of drought tolerance of varying degrees. The more drought tolerant D-41-05 line was also characterized by Dreb-B1 allele introgression from T. dicoccum. A number of non-specific patterns and significant differences in allolines in regulation of physiological parameters in drought conditions is identified. Changes in photosynthetic activity in stress-drought are shown to reflect the level of drought tolerance of the forms studied. The contribution of different combinations of nuclear/cytoplasmic genome and alleles of Dreb-1 gene in allolines to the formation of stress tolerance and photosynthetic activity is discussed. |
| Databáze: | OpenAIRE |
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