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Flower and pod genes involved in soybean sensitivity to drought

by Fuganti-Pagliarini, Renata , Rockenbach Marin, Silvana Regina , Nepomuceno, Alexandre Lima , Mertz-Henning, Liliane Marcia , Rech Filho, Elíbio Leopoldo , Correa Molinari, Mayla Daiane , Marcolino-Gomes, Juliana , de Amorim Barbosa, Daniel

in Biosynthesis / Cell walls / Cultivars / Drought / drought escape / drought sensitivity / Flowering / flowers / Flowers & plants / Gas exchange / Gene expression / gene ontology / Genes / genes differentially expressed / Glycine max / phenotype / Physiology / RNA-Seq / Soybeans / water deficit

2021

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Flower and pod genes involved in soybean sensitivity to drought

2021

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Flower and pod genes involved in soybean sensitivity to drought

2021

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Journal Article

Flower and pod genes involved in soybean sensitivity to drought

Fuganti-Pagliarini, Renata,

Rockenbach Marin, Silvana Regina,

Nepomuceno, Alexandre Lima,

Mertz-Henning, Liliane Marcia,

Rech Filho, Elíbio Leopoldo,

Correa Molinari, Mayla Daiane,

Marcolino-Gomes, Juliana,

de Amorim Barbosa, Daniel

2021

Overview

In soybean, studies on drought-responses are conducted during vegetative season. Information related to genes triggered in response to water-deficit (WD) in flower and pod is lacking. We performed an RNASeq and an agro-physiological characterization at stages R2 and R4 of soybean cultivar BR16, under WD. Physiological results showed a decrease in gas exchange parameters. Agronomical results showed WD impaired yield. Global Gene Ontology analyses indicated that most of the Differential Expressed Genes (DEGs) were down-regulated in flowers but up-regulated in pods. qRT-PCR revealed that WD triggered hormone biosynthesis changes. Mechanisms such as a decrease in glyceollin levels and cell wall instability were observed. This data showed tissue-specific mechanisms correlated with phenotypic responses such as drought escape, early flowering hormone-induced, and loss in grain weight. We presented here a comprehensive expression profile of flowers and pods soybean genes, which could guide researchers in the development of plants more tolerant to drought.

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Publisher

Taylor & Francis,Taylor & Francis Ltd,Taylor & Francis Group

Subject

/ Drought

/ drought sensitivity

/ Flowering