Wheat-Thinopyrum Substitution Lines Imprint Compensation Both From Recipients and Donors

• DOI: 10.3389/fpls.2022.837410
• Publication Date: 2022-04-15T08:02:38Z
• Authors: Zhongfan Lyu; Yongchao Hao; Liyang Chen; Shoushen Xu; Hongjin Wang; Mengyao Li; Wenyang Ge; Bingqian Hou; Xinxin Cheng; Xuefeng Li; Naixiu Che; Tianyue Zhen; Silong Sun; Yinguang Bao; Zujun Yang; Jizeng Jia; Lingrang Kong; Hongwei Wang
• Keywords: compensation; 2. Zero hunger; 0303 health sciences; 03 medical and health sciences; Thinopyrum; wheat; Plant culture; Plant Science; substitution line; distant hybridization; SB1-1110

Even frequently used in wheat breeding, we still have an insufficient understanding of the biology products via distant hybridization. In this study, a transcriptomic analysis was performed for six Triticum aestivum - Thinopyrum elongatum substitution lines comparison with host plants. All disomic showed much stronger “transcriptomic-shock” occurred on alien genomes 57.43–69.22% genes changed expression level but less recipient genome (2.19–8.97%). Genome-wide suppression along chromosomes observed high proportion downregulated (39.69–48.21%). Oppositely, genome-wide compensation more upregulated genes, occurring all not limited to homeologous groups. Moreover, strong co-upregulation orthologs between and sub-genomes enriched photosynthesis predicted chloroplastic localization, which indicates that happened only also genomes.