PMID- 35161296 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220219 IS - 2223-7747 (Print) IS - 2223-7747 (Electronic) IS - 2223-7747 (Linking) VI - 11 IP - 3 DP - 2022 Jan 25 TI - An Eruption of LTR Retrotransposons in the Autopolyploid Genomes of Chrysanthemum nankingense (Asteraceae). LID - 10.3390/plants11030315 [doi] LID - 315 AB - Whole genome duplication, associated with the induction of widespread genetic changes, has played an important role in the evolution of many plant taxa. All extant angiosperm species have undergone at least one polyploidization event, forming either an auto- or allopolyploid organism. Compared with allopolyploidization, however, few studies have examined autopolyploidization, and few studies have focused on the response of genetic changes to autopolyploidy. In the present study, newly synthesized C. nankingense autotetraploids (Asteraceae) were employed to characterize the genome shock following autopolyploidization. Available evidence suggested that the genetic changes primarily involved the loss of old fragments and the gain of novel fragments, and some novel sequences were potential long terminal repeat (LTR) retrotransposons. As Ty1-copia and Ty3-gypsy elements represent the two main superfamilies of LTR retrotransposons, the dynamics of Ty1-copia and Ty3-gypsy were evaluated using RT-PCR, transcriptome sequencing, and LTR retrotransposon-based molecular marker techniques. Additionally, fluorescence in situ hybridization(FISH)results suggest that autopolyploidization might also be accompanied by perturbations of LTR retrotransposons, and emergence retrotransposon insertions might show more rapid divergence, resulting in diploid-like behaviour, potentially accelerating the evolutionary process among progenies. Our results strongly suggest a need to expand the current evolutionary framework to include a genetic dimension when seeking to understand genomic shock following autopolyploidization in Asteraceae. FAU - He, Jun AU - He J AD - State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China. FAU - Yu, Zhongyu AU - Yu Z AD - State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China. FAU - Jiang, Jiafu AU - Jiang J AD - State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China. FAU - Chen, Sumei AU - Chen S AD - State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China. FAU - Fang, Weimin AU - Fang W AD - State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China. FAU - Guan, Zhiyong AU - Guan Z AD - State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China. FAU - Liao, Yuan AU - Liao Y AD - State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China. FAU - Wang, Zhenxing AU - Wang Z AUID- ORCID: 0000-0001-5102-7121 AD - State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China. FAU - Chen, Fadi AU - Chen F AD - State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China. FAU - Wang, Haibin AU - Wang H AD - State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China. LA - eng GR - 32172613/the National Natural Science Foundation of China/ PT - Journal Article DEP - 20220125 PL - Switzerland TA - Plants (Basel) JT - Plants (Basel, Switzerland) JID - 101596181 PMC - PMC8839533 OTO - NOTNLM OT - Asteraceae OT - Chrysanthemum OT - autopolyploidization OT - evolution OT - genome duplication COIS- The authors declare no conflict of interest. EDAT- 2022/02/16 06:00 MHDA- 2022/02/16 06:01 PMCR- 2022/01/25 CRDT- 2022/02/15 01:10 PHST- 2022/01/11 00:00 [received] PHST- 2022/01/21 00:00 [revised] PHST- 2022/01/22 00:00 [accepted] PHST- 2022/02/15 01:10 [entrez] PHST- 2022/02/16 06:00 [pubmed] PHST- 2022/02/16 06:01 [medline] PHST- 2022/01/25 00:00 [pmc-release] AID - plants11030315 [pii] AID - plants-11-00315 [pii] AID - 10.3390/plants11030315 [doi] PST - epublish SO - Plants (Basel). 2022 Jan 25;11(3):315. doi: 10.3390/plants11030315.