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GENES CLUSTERS REGULATING THE RESPONSE REACTIONS ON WATER STRESS IN THE NUCLEAR GENOME OF TRITICUM AESTIVUM L.
Original title
КЛАСТЕРЫ ГЕНОВ, РЕГУЛИРУЮЩИЕ ОТВЕТНЫЕ РЕАКЦИИ НА ВОДНЫЙ СТРЕСС В ЯДЕРНОМ ГЕНОМЕ TRITICUM AESTIVUM L.
Authors
S.V. Osipova1,4, Т.А. Pshenichnikova2, А.V. Permyakov1, М.D. Permyakova1, Е.G. Rudikovskaya1, А.V. Doroshkov2, V.V. Verchoturov5, I.N. Leonova2, U. Lohwasser3, А. Börner3
Contact information
1Siberian Institute of Plant Physiology and Biochemistry SB RAS, Irkutsk, Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.
2Institute of Cytology and Genetics SB RAS, Novosibirsk, Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.
3Leibniz Institute of Plant Genetics and Crop Plant Research, Gatersleben, Germany, Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.
4Irkutsk State University, Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.
5National Research Irkutsk State Technical University, Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.
Pages
80-82
DOI
10.31255/978-5-94797-318-1-80-82
Abstract
The QTLs associated with adaptation of bread wheat to water deficiency were mapped on the long arm of 2A chromosome at the positions 102 cM and 108.5 - 109.2 cM. One hundred recombinant wheat lines Saratovskaya 29 (Yanetzkis Probat 2A) genotyped with SNP markers were used. Data on the yield components and the phenological characteristics of the lines were collected in field and greenhouse. Data on the biomass of the main shoot and physiological and biochemical parameters were collected under controlled conditions of the climatic chamber.
The cluster of 29 genes was found at the position 108.5 - 109.2 cM based on the results of the bioinformatic analysis. Of these, 20 genes encode proteins or important regulatory subunits whose functions are associated with response to external signals. Thirteen genes were identified in the position 102 cM. Of these, 10 genes encode proteins with important functions for adaptation of plants.
We assumed that these QTLs are associated with the activation of the gene networks which changes the physiological status of wheat plants under drought. According to our results, a number of post-translational modifications of proteins were induced by water deficit conditions. The transcription of genes regulating the Krebs cycle and the activity of the ubiquitin-proteasome system were modulated. These changes were associated with activation and cross-talk of hormonal signaling pathways including jasmonate -, ABA - and Ca2 + - dependent pathways. Probably, the transcription factor NF-Y and ATP - dependent chromatin remodulating complex SWI/SNF are triggers of this gene network.