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Genome-Wide Identification and Expression Analysis of the gsk3 Gene Family in Sunflower under Various Abiotic Stresses

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PHYTON-INTERNATIONAL JOURNAL OF EXPERIMENTAL BOTANY 2024年第8期93卷 1839-1850页

作者： Ji, Xianwen Jiang, Ziying Wang, Jichao Dong, Lili Deng, Xinyi Anhui Agr Univ Dept Ornamental Hort Hefei 230061 Peoples R China

Genes in the glycogen synthase kinase 3 (gsk3) family are essential in regulating plant response to stressful conditions. This study employed bioinformatics to uncover the gsk3 gene family from the sunflower genome database. The expressions of gsk3 genes in different tissues and stress treatments, such as salt, drought, and cold, were assessed using transcriptome sequencing and quantitative real-time PCR (qRT-PCR). The study results revealed that the 12 gsk3 genes of sunflower, belonging to four classes (Classes I-IV), contained the gsk3 kinase domain and 11-13 exons. The majority of gsk3 genes were highly expressed in the leaf axil and flower, while their expression levels were relatively lower in the leaf. As a result of salt stress, six of the gsk3 genes (HaSK11, HaSK22, HaSK23, HaSK32, HaSK33, and HaSK41) displayed a notable increase in expression, while HaSK14 and HaSK21 experienced a significant decrease. With regard to drought stress, five of the gsk3 genes (HaSK11, HaSK13, HaSK21, HaSK22, and HaSK33) experienced a remarkable rise in expression. When exposed to cold stress, seven of the gsk3 genes (HaSK11, HaSK12, HaSK13, HaSK32, HaSK33, HaSK41, and HaSK42) showed a substantial increase, whereas HaSK21 and HaSK23 had a sharp decline. This research is of great importance in understanding the abiotic resistance mechanism of sunflowers and developing new varieties with improved stress resistance.

关键词： Sun fl ower abiotic stress gsk expression analysis gsk3-like kinase bin2 gsk3/SHAGGY-like kinase FREEZING TOLERANCE ABSCISIC-ACID ARABIDOPSIS SALT BRASSINOSTEROIDS DROUGHT BZR1

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