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Identification andcharacterization ofmetabolitequantitative traitloci in tomato leavesand comparison withthose reported forfruits and seeds Adriano Nunes‐NesiSaleh AlseekhFranklin Magnum de OliveiraSilva2019 год

Identification and characterization of metabolite quantitative trait loci in tomato leaves and comparison with those reported for fruits and seeds
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Аннотация: To date, most studies of natural variation and metabolite quantitative trait loci (mQTL) in tomato have focused on fruit metabolism, leaving aside the identification of genomic regions involved in the regulation of leaf metabolism. This study was conducted to identify leaf mQTL in tomato and to assess the association of leaf metabolites and physiological traits with the metabolite levels from other tissues. The analysis of components of leaf metabolism was performed by phenotypying 76 tomato ILs with chromosome segments of the wild species Solanum pennellii in the genetic background of a cultivated tomato (S. lycopersicum) variety M82. The plants were cultivated in two different environments in independent years and samples were harvested from mature leaves of non-flowering plants at the middle of the light period. The non-targeted metabolite profiling was obtained by gas chromatography time-of-flight mass spectrometry (GC-TOF-MS). With the data set obtained in this study and already published metabolomics data from seed and fruit, we performed QTL mapping, heritability and correlation analyses. Changes in metabolite contents were evident in the ILs that are potentially important with respect to stress responses and plant physiology. By analyzing the obtained data, we identified 42 positive and 76 negative mQTL involved in carbon and nitrogen metabolism. Overall, these findings allowed the identification of S. lycopersicum genome regions involved in the regulation of leaf primary carbon and nitrogen metabolism, as well as the association of leaf metabolites with metabolites from seeds and fruits.
Год издания: 2019
Авторы: Adriano Nunes‐Nesi, Saleh Alseekh, Franklin Magnum de Oliveira Silva, Nooshin Omranian, Gabriel Lichtenstein, Mohammad Mirnezhad, Roman Rodolfo Romero González, Julia Sabio y García, Mariana Conte, Kirsten A. Leiss, Peter G. L. Klinkhamer, Zoran Nikoloski, Fernando Carrari, Alisdair R. Fernie
Издательство: Springer Science+Business Media
Источник: Metabolomics
Ключевые слова: Plant Gene Expression Analysis, Genetic Mapping and Diversity in Plants and Animals, Plant Molecular Biology Research
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