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Multi-omics profiling of Nanhaia speciosa and Nanhaia fordii: insights into lectin dynamics, nodulation, and triterpenoid saponin biosynthesis

文献类型： 外文期刊

作者： Li, Zhiying 1 ; Wang, Jiabin 1 ; Zhang, Junfang 5 ; Fu, Yunliu 1 ; Jing, Yonglin 1 ; Huang, Bilan 1 ; Wu, Huazhou 6 ; Meng, Chunyang 1 ; Xu, Li 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Inst Trop Crop Genet Resources, Haikou 571101, Hainan, Peoples R China

2.Minist Agr & Rural Affairs, Key Lab Biol & Cultivat Herb Med Haikou, Haikou 571101, Hainan, Peoples R China

3.Hainan Prov Key Lab Trop Crops Germplasm Resources, Haikou 571101, Hainan, Peoples R China

4.Natl Gene Bank Trop Crops, Danzhou 571700, Hainan, Peoples R China

5.Gen Stn Seeds Hainan Prov, Haikou 571101, Hainan, Peoples R China

6.Chinese Acad Trop Agr Sci, Inst Environm & Plant Protect, Haikou 571101, Hainan, Peoples R China

关键词： Nanhaia speciosa; Nanhaia fordii; Chromosome-level genome; Licorice saponins; Isoflavonoids; Nodulation; Lectin

期刊名称：BMC BIOLOGY （ 影响因子：4.5； 五年影响因子：5.4 ）

ISSN：

年卷期： 2025 年 23 卷 1 期

页码：

收录情况： SCI

摘要： BackgroundNanhaia speciosa (N. speciosa) has long been served as a traditional medicinal and edible plant. N. speciosa and Nanhaia fordii (N. fordii) are the only two species under the Nanhaia genus, but the latter is of limited use. As a closely related species, N. fordii has a highly similar appearance and taste to N. speciosa and was used in the market to impersonate N. speciosa with potential harm to health.ResultsTo analyze the differences and underlying basis between N. speciosa and N. fordii, we conducted a comprehensive comparison of their genomic, transcriptomic, and metabolomic data. Using PacBio HiFi and Hi-C data, we achieved high-quality haploid genomes for both N. speciosa and N. fordii. Comparative analysis reveals the elevated expression of Wisteria lectin-like genes in N. fordii, corresponding with higher heat-resistance lectin content in N. fordii than in N. speciosa, potentially causing food poisoning due to increased lectin levels in the plant. Metabolomic analysis indicates that licorice saponins are the main components contributing to the sweetness in N. fordii and N. speciosa, making it the only reported plant, apart from the licorice genus, containing licorice saponins. Moreover, the nodulation key gene RPG cannot be expressed in the roots of N. speciosa, possibly explaining the ability of N. fordii to form nodules while N. speciosa cannot.ConclusionsLeveraging high-quality haploid genome assembly and multi-omics analysis, our data provides a crucial foundation for identifying key metabolic components and candidate genes associated with important traits and for breeding new varieties of N. fordii and N. speciosa.

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