Regions of the bread wheat D genome associated with variation in key photosynthesis traits and shoot biomass under both well watered and water deficient conditions

Osipova, S. V.; Permyakov, A. V.; Permyakova, M. D.; Пшеничникова, Т. А.; Верхотуров, В. В.; Rudikovsky, A. V.; Rudikovskaya, E. G.; Shishparenok, А.А.; Дорошков, А. В.; Börner, Andreas

doi:10.1007/s13353-015-0315-4

Cited by 18 publications

(11 citation statements)

References 42 publications

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“…Markers Xpsp3123-7D and Xwmc539-2D under water-stressed conditions, showed R 2 values of more than 10% (18.1% and 26.57%, respectively) and might be the major QTLs for plant biomass. Marker Xwmc539-2D which explained the highest percentage of the total phenotypic variation (26.57%) under water-stressed conditions was also previously reported as a major QTL for wheat biomass in contrasting environment (Osipova et al, 2016), indicating its important role in controlling plant biomass. Marker Xpsp3123-7D was consistently associated with BMPP in both environments and may therefore be efficiently utilized to improve plant biomass in common wheat under variable moisture conditions.…”

Section: Markers Associated With Biomass Plant -1 (Bmpp)supporting

confidence: 60%

Association mapping for photosynthesis and yield traits under two moisture conditions and their drought indices in winter bread wheat (Triticum aestivum L.) using SSR markers

Iqbal¹,

Chen²,

Bachir³

et al. 2017

Aust J Crop Sci

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Net photosynthesis rate and drought resistance in wheat need to be improved to enhance overall wheat productivity. Association mapping was used to explore the potential QTLs associated with net photosynthesis rate (Pn), thousand-kernel weight (TKW), biomass plant -1 (BMPP) and grain yield plant -1 (GYPP) under two water conditions and their drought indices, i.e. stress tolerance index (STI) and stress susceptibility index (SSI) in wheat using 269 whole-genome SSR markers in 59 winter wheat genotypes. Large numbers of marker-trait associations (MTAs) were detected for photosynthesis and yield related traits under both water conditions and related drought tolerance indices in both seasons. However, the number of significant associations reduced greatly when Bonferroni correction (FPDR) test was applied. Single marker, i.e. Xpsp3123-7D was associated with multiple traits across moisture conditions as well as growth seasons. Xgwm182-5D was stably associated with TKW under water-stressed conditions and with GYPP under well-watered conditions, respectively in both seasons. Xcfd33-6D was consistently linked with BMPP in both seasons under well-watered condition. A Total of 28 associations for the drought tolerance indices of those phenotypic traits qualified FPDR test. Of these, Xpsp3123-7D was consistently associated with the two drought indices of the traits in two seasons. The markers Xwmc707-4A and Xgwm182-5D were stably associated with stress susceptibility index (STI) of BMPP and stress tolerance index (STI) of TKW, respectively across two seasons. These putative QTLs, especially Xpsp312-7D can be the key targets to improve photosynthetic efficiency and yield potential of bread wheat in rainfed ecosystem.

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Section: Markers Associated With Biomass Plant -1 (Bmpp)supporting

confidence: 60%

Association mapping for photosynthesis and yield traits under two moisture conditions and their drought indices in winter bread wheat (Triticum aestivum L.) using SSR markers

Iqbal¹,

Chen²,

Bachir³

et al. 2017

Aust J Crop Sci

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“…There are more cases of similar QTL position detected here and in other studies, i.e. heading date on chromosomes 1R and 6R (Myśków and Stojałowski 2016; Święcka et al 2014), thousand-kernel weight on chromosomes 1RS, 1RL, 3RS, 5RS, 6RS and 7RL (Miedaner et al 2012; Myśków et al 2014), plant height on chromosomes 1RS, 2RS, 2RL, 3RL, 5RS and 7RL (Myśków et al 2014; Miedaner et al 2012), spike length on chromosomes 2RS, 4R, 5RL, 6R (Myśków et al 2014) and chlorophyll content on chromosomes 1D and 5D in wheat (Osipova et al 2016). …”

Section: Discussionmentioning

confidence: 99%

Comparative analysis of genetic architectures for nine developmental traits of rye

2017

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Genetic architectures of plant height, stem thickness, spike length, awn length, heading date, thousand-kernel weight, kernel length, leaf area and chlorophyll content were aligned on the DArT-based high-density map of the 541 × Ot1–3 RILs population of rye using the genes interaction assorting by divergent selection (GIABDS) method. Complex sets of QTL for particular traits contained 1–5 loci of the epistatic D class and 10–28 loci of the hypostatic, mostly R and E classes controlling traits variation through D–E or D–R types of two-loci interactions. QTL were distributed on each of the seven rye chromosomes in unique positions or as a coinciding loci for 2–8 traits. Detection of considerable numbers of the reversed (D′, E′ and R′) classes of QTL might be attributed to the transgression effects observed for most of the studied traits. First examples of E* and F QTL classes, defined in the model, are reported for awn length, leaf area, thousand-kernel weight and kernel length. The results of this study extend experimental data to 11 quantitative traits (together with pre-harvest sprouting and alpha-amylase activity) for which genetic architectures fit the model of mechanism underlying alleles distribution within tails of bi-parental populations. They are also a valuable starting point for map-based search of genes underlying detected QTL and for planning advanced marker-assisted multi-trait breeding strategies.Electronic supplementary materialThe online version of this article (doi:10.1007/s13353-017-0396-3) contains supplementary material, which is available to authorized users.

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“…Основой молекулярной механики антиоксидантной защиты растений являются специализированные ферменты, утилизирующие АФК и пероксиды. Улучшение характеристик этой системы позволит повысить устойчивость культурных растений к абиотическим стрессам, таким как засоленность, засуха и холод (Gill et al, 2013;Khaliq et al, 2015;Osipova et al, 2016). В настоящей работе впервые проведен системный анализ особенностей молекулярной эволюции и уровней экспрессии генов четырех функциональных групп ферментов -компонентов системы антиоксидантной защиты (APX, GPX, SOD и CAT).…”

Section: Discussionunclassified

“…Это свидетельствует в пользу того, что за полиморфизм в активности антиоксидантной системы могут быть ответственны аллельные варианты именно структурных, а не регуляторных генов. Современные исследования подтверждают эти данные, а также позволяют выявить большее количество ассоциированных локусов, например локус, ассоциированный с активностью APX на хромосоме 7D, и локус, ассоциированный с активностью SOD на хромосоме 4D (Osipova et al, 2016).…”

Section: Discussionunclassified

“…Активность антиоксидантной системы увеличивает устойчивость растений к высоким температурам (Wang et al, 2014), засоленности (Gill et al, 2013;Khaliq et al, 2015) и другим стрессам (Osipova et al, 2016). Следует отметить, что каждый фермент системы антиоксидантной защиты представлен в геноме растений в нескольких копиях.…”

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Using the Methods of Systems Biology for Predicting Perspective Target Genes to Select C3 and C4 Cereals for Oxidative Stress Resistance

Дорошков¹,

Bobrovskikh²

2018

Vestn. VOGiS

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Reactive oxygen species (ROS) are some of the most damaging factors for living systems. Cells produce ROS during normal metabolism reactions, but ROS production increases under stressful conditions. Improving the antioxidant system in cultivated plants will increase their tolerance to abiotic stresses, such as salinity, drought and cold. However, the biochemical components of the system are redundant, for each reaction is catalyzed by a series of enzymes encoded by different genes. Choosing the most perspective components of this system will help speed up evaluating the optimal breeding strategy for improving abiotic stress tolerance in economically valuable plants.In the present research article, we present the results of an integrative analysis of evolution-and expressionrelated characteristics. The work was carried out on a series of genes that belong to 4 functional groups (APX, GPX, SOD and CAT) of enzymatic components of the antioxidant defense system in six species of C 3 cereal plants and 3 species of C 4 cereal plants. As a result, 25 groups of orthologous genes were evaluated and described. The highest gene expression level and the greatest pressure of purifying selection were found to characterize six groups. These genes were chosen for further verification and use in breeding. Because these genes undergo the most conservative evolution and have the highest level of mRNA expression, we may assume that they contribute a lot to the antioxidant system functioning of the C 3 and C 4 cereal plants studied. We have shown that the integration of evolutionary characteristics and expression data represents a promising approach to predict target genes for plant breeding.Активные формы кислорода (АФК) -один из ключевых повреждающих факторов для живых организмов. АФК производятся в реакциях нормального метаболизма, в стрессовых условиях их выработка повышается. Улучшение характеристик ферментативной системы антиоксидантной защиты культурных растений позволит повысить их устойчивость к абиотическим стрессам, таким как засоленность, засуха и холод. Однако компоненты системы вырождены -каждая реакция катализируется серией ферментов, кодируемых разными генами. Выбор наиболее важных компонентов позволит ускорить нахождение оптимальной селекционной стратегии для улучшения свойств всей системы у хозяйственно ценных видов растений. В настоящей работе впервые проведен системно-биологический анализ особенностей молекулярной эволюции и характеристик экспрессии генов, принадлежащих к четырем функциональным группам ферментов антиоксидантной защиты (APX, GPX, SOD и CAT), у шести представителей C 3 и трех представителей C 4 злаковых растений. Выделены и проанализированы 25 ортологических групп генов. Выявлены шесть ортологических групп с наиболее высоким уровнем экспрессии и наибольшим давлением стабилизирующего отбора для дальнейшей верификации и использования в селекции. Эти шесть ортологических групп, предположительно, вносят больший вклад в функционирование антиоксидантной системы изученных C 3 и C 4 злаковых растений. Показ...

show abstract

Regions of the bread wheat D genome associated with variation in key photosynthesis traits and shoot biomass under both well watered and water deficient conditions

Cited by 18 publications

References 42 publications

Association mapping for photosynthesis and yield traits under two moisture conditions and their drought indices in winter bread wheat (Triticum aestivum L.) using SSR markers

Association mapping for photosynthesis and yield traits under two moisture conditions and their drought indices in winter bread wheat (Triticum aestivum L.) using SSR markers

Comparative analysis of genetic architectures for nine developmental traits of rye

Using the Methods of Systems Biology for Predicting Perspective Target Genes to Select C3 and C4 Cereals for Oxidative Stress Resistance

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