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Wild rice harbors more root endophytic fungi than cultivated rice in the F1 offspring after crossbreeding

文献类型： 外文期刊

作者： Tian, Lei 1 ; Wang, Enze 1 ; Lin, Xiaolong 1 ; Ji, Li 1 ; Chang, Jingjing 1 ; Chen, Hongping 3 ; Wang, Jilin 3 ; Chen, Da 1 ;

作者机构： 1.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun 130102, Jilin, Peoples R China

2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

3.Jiangxi Acad Agr Sci, Rice Res Inst, Nanchang 330200, Jiangxi, Peoples R China

4.Duy Tan Univ, Inst Res & Dev, Da Nang 550000, Vietnam

5.Texas Tech Univ, Inst Genom Crop Abiot Stress Tolerance, Dept Plant & Soil Sci, Lubbock, TX 79409 USA

6.Jilin Agr Univ, Key Lab Straw Biol & Utilizat, Minist Educ, Changchun 130118, Jilin, Peoples R China

关键词： Cultivated rice; Microbiota; Endophytic; Wild rice

期刊名称：BMC GENOMICS （ 影响因子：3.594； 五年影响因子：4.093 ）

ISSN： 1471-2164

年卷期： 2021 年 22 卷 1 期

页码：

收录情况： SCI

摘要： Background Rice, which serves as a staple food for more than half of the world's population, is grown worldwide. The hybridization of wild and cultivated rice has enabled the incorporation of resistance to varying environmental conditions. Endophytic microbiota are known to be transferred with their host plants. Although some studies have reported on the endophytic microbiota of wild and cultivated rice, the inheritance from wild and cultivated rice accessions in next generations, in terms of endophytic microbiota, has not been examined. Results In the present study, the endophytic microbial community structures of Asian and African wild and cultivated rice species were compared with those of their F1 offspring. High-throughput sequencing data of bacterial 16S rDNA and fungal internal transcribed spacer regions were used to classify the endophytic microbiota of collected samples of rice. Results indicated that when either African or Asian wild rice species were crossed with cultivated rice accessions, the first generation harbored a greater number of root endophytic fungi than the cultivated parent used to make the crosses. Network analysis of the bacterial and fungal operational taxonomic units revealed that Asian and African wild rice species clustered together and exhibited a greater number of significant correlations between fungal taxa than cultivated rice. The core bacterial genus Acidovorax and the core fungal order Pleosporales, and genera Myrothecium and Bullera connected African and Asian wild rice accessions together, and both the wild rice accessions with their F1 offspring. On the other hand, the core bacterial genus Bradyrhizobium and the core fungal genera Dendroclathra linked the African and Asian cultivated rice accessions together. Conclusions This study has theoretical significance for understanding the effect of breeding on the inheritance of endophytic microbiota of rice and identifying beneficial endophytic bacteria and fungi among wild and cultivated rice species, and their F1 offspring.

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