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Integrative transcriptomic and metabolomic analysis elucidates the vital pathways underlying the differences in salt stress responses between two chickpea (Cicer arietinum L.) varieties

文献类型： 外文期刊

作者： Duan, Guangxia 1 ; Liang, Chaoni 1 ; Su, Jundong 2 ; Liang, Yan 1 ; Li, Wanming 1 ; Zhang, Jinbo 3 ; Zhang, Yigong 1 ;

作者机构： 1.Xinjiang Univ, Coll Life Sci & Technol, Xinjiang Key Lab Biol Resources & Genet Engn, Urumqi 830017, Peoples R China

2.Xinjiang Acad Agr Sci, Inst Crop Sci, Urumqi 830091, Peoples R China

3.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China

4.Chinese Acad Sci, Key Lab Ecol Safety & Sustainable Dev Arid Lands, Urumqi 830011, Peoples R China

关键词： Chickpea; Transcriptome; Metabolome; Flavonoids; Salt stress

期刊名称：BMC PLANT BIOLOGY （ 影响因子：4.8； 五年影响因子：5.4 ）

ISSN： 1471-2229

年卷期： 2025 年 25 卷 1 期

页码：

收录情况： SCI

摘要： Background Salinity, a major abiotic stress, significantly impairs crop productivity by inducing osmotic, ionic, and secondary stresses that disrupt metabolic processes. Chickpea (Cicerarietinum L.), a diploid annual legume of the Fabaceae family, is one of the major pulse crops cultivated by farmers with limited resources. While previous studies have explored salt tolerance in chickpeas, this study provides a comprehensive multi-omics perspective. Exploring the mechanism of chickpea adaptation to the saline environment can effectively supplement the problem of single source of plant protein. Results The present study analyzed the transcriptomic and metabolomic profiles of two distinct chickpea varieties, DY3 and DY1, with contrasting salinity tolerance capacities.The salinity tolerance of DY3 was associated with greater biomass, higher antioxidant enzyme activity, and higher photosynthetic efficiency.Transcriptomic analysis revealed that the genes induced in DY3 under salinity stress were associated with ion homeostasis, antioxidant defense system, and plant hormone signaling. Metabolomics analysis revealed significant enrichment of components of diverse secondary metabolites pathways, as well as carbohydrate metabolism. Integrated multi-omics analysis highlighted the anthocyanin biosynthesis pathway, functioning within the broader flavonoid metabolic network, as a key regulator of salt tolerance in the chickpea. Subsequent, RT-qPCR confirmed the upregulation of key genes associated with anthocyanin metabolism. Conclusions These findings reveal the key regulatory role of the flavonoid pathway in salt tolerance of chickpeas, offering insights for breeding improved varieties.

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