Differential gene expression in response to water deficit in leaf and root tissues of soybean genotypes with contrasting tolerance profiles
| Autor: | Liliane Marcia Mertz-Henning, Juliana Marcolino-Gomes, Fabiana Aparecida Rodrigues, Rafaela Ribeiro Reis, Silvana Rockenbach-Marin, Alexandre Lima Nepomuceno, Renata Fuganti-Pagliarini, Alessandra Koltun, Leandro Simões Azeredo Gonçalves |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine lcsh:QH426-470 Drought tolerance Biology Plant Genetics 01 natural sciences 03 medical and health sciences Gene expression Genotype Genetics Transcription factors Cultivar Molecular Biology Gene Transcription factor fungi food and beverages WRKY WRKY protein domain lcsh:Genetics 030104 developmental biology Osmoregulation osmoregulation AP2/EREBP 010606 plant biology & botany |
| Zdroj: | Genetics and Molecular Biology Genetics and Molecular Biology, Volume: 43, Issue: 2, Article number: e20180290, Published: 29 MAY 2020 Genetics and Molecular Biology v.43 n.2 2020 Sociedade Brasileira de Genética (SBG) instacron:SBG Genetics and Molecular Biology, Vol 43, Iss 2 |
| ISSN: | 1678-4685 1415-4757 |
| Popis: | Water deficit is one of the major limitations to soybean production worldwide, yet the genetic basis of drought-responsive mechanisms in crops remains poorly understood. In order to study the gene expression patterns in leaves and roots of soybean, two contrasting genotypes, Embrapa 48 (drought-tolerant) and BR 16 (drought-sensitive), were evaluated under moderate and severe water deficit. Transcription factors from the AP2/EREBP and WRKY families were investigated. Embrapa 48 showed 770 more up-regulated genes than BR 16, in eight categories. In general, leaves presented more differentially expressed genes (DEGs) than roots. Embrapa 48 responded to water deficit faster than BR 16, presenting a greater number of DEGs since the first signs of drought. Embrapa 48 exhibited initial modulation of genes associated with stress, while maintaining the level of the ones related to basic functions. The genes expressed exclusively in the drought-tolerant cultivar, belonging to the category of dehydration responsive genes, and the ones with a contrasting expression pattern between the genotypes are examples of important candidates to confer tolerance to plants. Finally, this study identified genes of the AP2/EREBP and WRKY families related to drought tolerance. |
| Databáze: | OpenAIRE |
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