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Interfamily Grafted Hybrids Vitis vinifera/Schisandra chinensis Resulted in Transcriptomic, Phenotypic, and Metabolic Changes

文献类型： 外文期刊

作者： Zhang, Shulin 1 ; Chen, Zhuo 1 ; Zhao, Junhui 1 ; Diao, Songfeng 2 ; Tian, Li 3 ; Zhao, Ying 5 ; Li, Fangdong 2 ; Zhu, Gao-Pu 1 ;

作者机构： 1.Henan Inst Sci & Technol, Sch Hort & Landscape Architecture, Xinxiang 453003, Peoples R China

2.Chinese Acad Forestry, Res Inst Nontimber Forestry, Zhengzhou 450003, Peoples R China

3.Anyang Inst Technol, Coll Biol & Food Engn, Anyang 455000, Peoples R China

4.Chinese Acad Sci, Innovat Acad Seed Design, CAS Key Lab Trop Plant Resources & Sustainable Use, Xishuangbanna Trop Bot Garden, Kunming 650223, Peoples R China

5.Guangxi Subtrop Crops Res Inst, Nanning 530001, Peoples R China

关键词： graft hybridization; distant-grafting; Vitis vinifera; transcriptome; miRNA; metabolome

期刊名称：PLANTS-BASEL （ 影响因子：4.0； 五年影响因子：4.4 ）

ISSN： 2223-7747

年卷期： 2024 年 13 卷 12 期

页码：

收录情况： SCI

摘要： Long-distance transfer of genetic material and metabolites between rootstock and scions is well documented in homo-grafted hybrids but has rarely been reported in genetically-distant grafts where the rootstock and scion belong to different families. In this study, we grafted Vitis vinifera scions onto Schisandra chinensis stocks and obtained 20 vegetative hybrids, Vitis vinifera/Schisandra chinensis (Vs). After 25 years of growth, we found that the phenotypes of the leaves, internodes, and fruits of the Vs hybrids above the graft union resembled an intermediate phenotype between V. vinifera and S. chinensis, and the new traits were stable when propagated vegetatively. We further analyzed genetic differences between Vv plants and Vs hybrids using high-throughput sequencing, while metabolomes were analyzed by liquid chromatography-mass spectrometry (LC-MS). We found a total of 2113 differentially expressed genes (DEGs). GO annotation and KEGG pathway enrichment analysis showed that these DEGs enriched mainly in oxidation-reduction and metabolic processes. Seventy-nine differentially expressed miRNAs (DEMs) containing 27 known miRNAs and 52 novel miRNAs were identified. A degradation analysis detected 840 target genes corresponding to 252 miRNAs, of which 12 DEMs and their corresponding target gene expression levels were mostly negatively correlated. Furthermore, 1188 differential metabolic compounds were identified. In particular, in Vs hybrids, the abundance of the metabolites schizandrin and gomisin as the main medicinal ingredients in S. chinensis were down-regulated and up-regulated, respectively. Our data demonstrated the effects of interfamily grafts on the phenotype, transcript profile and metabolites of the scion, and also provided new insight into the genetic, phenotypic, and metabolic plasticity associated with genetically distant grafted hybrids.

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