Flower and pod genes involved in soybean sensitivity to drought

Journal of plant interactions

article

Mayla Daiane Correa Molinari¹  Renata Fuganti-Pagliarini¹  Juliana Marcolino-Gomes¹  Daniel de Amorim Barbosa¹  Silvana Regina Rockenbach Marin¹  Liliane Marcia Mertz-Henning¹  Alexandre Lima Nepomuceno¹  Elíbio Leopoldo Rech Filho³ 

[1] Embrapa Soybean;Department of General Biology, Londrina State University;Embrapa Genetic Resources and Biotechnology

关键词: Glycine max;    water deficit;    drought escape;    drought sensitivity;    RNA-Seq;    genes differentially expressed;   

DOI  :  10.1080/17429145.2021.1921293

学科分类：纳米科学和纳米技术

来源: Taylor & Francis

【 摘 要 】

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 tissuespecific 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.

【 授权许可】

CC BY|CC BY-NC