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- Title
Wheat- Thinopyrum Substitution Lines Imprint Compensation Both From Recipients and Donors.
- Authors
Lyu, Zhongfan; Hao, Yongchao; Chen, Liyang; Xu, Shoushen; Wang, Hongjin; Li, Mengyao; Ge, Wenyang; Hou, Bingqian; Cheng, Xinxin; Li, Xuefeng; Che, Naixiu; Zhen, Tianyue; Sun, Silong; Bao, Yinguang; Yang, Zujun; Jia, Jizeng; Kong, Lingrang; Wang, Hongwei
- Abstract
Even frequently used in wheat breeding, we still have an insufficient understanding of the biology of the products via distant hybridization. In this study, a transcriptomic analysis was performed for six Triticum aestivum - Thinopyrum elongatum substitution lines in comparison with the host plants. All the six disomic substitution lines showed much stronger "transcriptomic-shock" occurred on alien genomes with 57.43–69.22% genes changed expression level but less on the recipient genome (2.19–8.97%). Genome-wide suppression of alien genes along chromosomes was observed with a high proportion of downregulated genes (39.69–48.21%). Oppositely, the wheat recipient showed genome-wide compensation with more upregulated genes, occurring on all chromosomes but not limited to the homeologous groups. Moreover, strong co-upregulation of the orthologs between wheat and Thinopyrum sub-genomes was enriched in photosynthesis with predicted chloroplastic localization, which indicates that the compensation happened not only on wheat host genomes but also on alien genomes.
- Subjects
HOST plants; GENE expression; GENE silencing; CHROMOSOMES; GENOMES; WHEAT breeding
- Publication
Frontiers in Plant Science, 2022, Vol 13, p1
- ISSN
1664-462X
- Publication type
Article
- DOI
10.3389/fpls.2022.837410