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

BMC Genomics

Lam-Son Phan Tran¹  Enze Wang²  Lei Tian²  Chunjie Tian³  Xiaolong Lin⁴  Jingjing Chang⁴  Li Ji⁴  Dazhou Chen⁵  Hongping Chen⁵  Jilin Wang⁵ 

[1] Institute of Research and Development, Duy Tan University, 550000, Da Nang, Vietnam;Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Science, Texas Tech University, 79409, Lubbock, TX, USA;Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 130102, Changchun, Jilin, China;Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 130102, Changchun, Jilin, China;Key Laboratory of Straw Biology and Utilization of the Ministry of Education, Jilin Agricultural University, 130118, Changchun, Jilin Province, China;Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 130102, Changchun, Jilin, China;University of Chinese Academy of Sciences, 100049, Beijing, China;Rice Research Institute, Jiangxi Academy of Agricultural Sciences, 330200, Nanchang, China;

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

DOI  :  10.1186/s12864-021-07587-1

来源: Springer

【 摘 要 】

BackgroundRice, 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.ResultsIn 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.ConclusionsThis 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.

【 授权许可】

CC BY