Centromere-Specific Retrotransposons and Very-Long-Chain Fatty Acid Biosynthesis in the Genome of Yellowhorn (Xanthoceras sorbifolium, Sapindaceae), an Oil-Producing Tree With Significant Drought Resistance
文献类型：期刊论文
| 作者 | Liu, Hui; Yan, Xue-Mei; Wang, Xin-rui; Zhang, Dong-Xu; Zhou, Qingyuan8; Shi, Tian-Le; Jia, Kai-Hua; Tian, Xue-Chan; Zhou, Shan-Shan; Zhang, Ren-Gang |
| 刊名 | FRONTIERS IN PLANT SCIENCE
 |
| 出版日期 | 2021 |
| 卷号 | 12 |
| ISSN号 | 1664-462X |
| 关键词 | yellowhorn centromere LINE1 Gypsy very-long-chain fatty acid |
| DOI | 10.3389/fpls.2021.766389 |
| 文献子类 | Article |
| 英文摘要 | In-depth genome characterization is still lacking for most of biofuel crops, especially for centromeres, which play a fundamental role during nuclear division and in the maintenance of genome stability. This study applied long-read sequencing technologies to assemble a highly contiguous genome for yellowhorn (Xanthoceras sorbifolium), an oil-producing tree, and conducted extensive comparative analyses to understand centromere structure and evolution, and fatty acid biosynthesis. We produced a reference-level genome of yellowhorn, similar to 470 Mb in length with similar to 95% of contigs anchored onto 15 chromosomes. Genome annotation identified 22,049 protein-coding genes and 65.7% of the genome sequence as repetitive elements. Long terminal repeat retrotransposons (LTR-RTs) account for similar to 30% of the yellowhorn genome, which is maintained by a moderate birth rate and a low removal rate. We identified the centromeric regions on each chromosome and found enrichment of centromere-specific retrotransposons of LINE1 and Gypsy in these regions, which have evolved recently (similar to 0.7 MYA). We compared the genomes of three cultivars and found frequent inversions. We analyzed the transcriptomes from different tissues and identified the candidate genes involved in very-long-chain fatty acid biosynthesis and their expression profiles. Collinear block analysis showed that yellowhorn shared the gamma (gamma) hexaploidy event with Vitis vinifera but did not undergo any further whole-genome duplication. This study provides excellent genomic resources for understanding centromere structure and evolution and for functional studies in this important oil-producing plant. |
| 学科主题 | Plant Sciences |
| 出版地 | LAUSANNE |
| WOS关键词 | MULTIPLE SEQUENCE ALIGNMENT ; ARABIDOPSIS-THALIANA ; TRANSPOSABLE ELEMENTS ; PHYLOGENETIC ANALYSIS ; NERVONIC ACID ; ANNOTATION ; EVOLUTION ; DNA ; IDENTIFICATION ; TRANSCRIPTOME |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| 出版者 | FRONTIERS MEDIA SA |
| WOS记录号 | WOS:000726943000001 |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/26793]  |
| 专题 | 中科院北方资源植物重点实验室 |
| 作者单位 | 1.El-Kassaby, Yousry A.] Univ British Columbia, Fac Forestry, Dept Forest & Conservat Sci, Vancouver, BC, Canada 2.Umea Univ, Umea Plant Sci Ctr, Dept Ecol & Environm Sci, Umea, Sweden 3.Ori Shandong Gene Sci & Technol Co Ltd, Dept Bioinformat, Weifang, Peoples R China 4.Chinese Acad Forestry, Res Inst Forest Ecol Environm & Protect, Key Lab Forest Ecol & Environm, Natl Forestry & Grassland Adm, Beijing, Peoples R China 5.Mannapperuma, Chanaka; Van Zalen, Elena; Street, Nathaniel R.] Umea Univ, Umea Plant Sci Ctr, Dept Plant Physiol, Umea, Sweden 6.Univ Laval Quebec, Fac Foresterie Geog & Geomat, Dept Sci Bois & Foret, Quebec City, PQ, Canada 7.Beijing Forestry Univ, Coll Biol Sci & Technol, Natl Engn Lab Tree Breeding,Beijing Adv Innovat C, Minist Educ,Sch Ecol & Nat Conservat,Key Lab Gene, Beijing, Peoples R China 8.Shanxi Datong Univ, R&D Ctr, Protected Agr Technol, Datong, Peoples R China 9.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Hui,Yan, Xue-Mei,Wang, Xin-rui,et al. Centromere-Specific Retrotransposons and Very-Long-Chain Fatty Acid Biosynthesis in the Genome of Yellowhorn (Xanthoceras sorbifolium, Sapindaceae), an Oil-Producing Tree With Significant Drought Resistance[J]. FRONTIERS IN PLANT SCIENCE,2021,12. |
| APA | Liu, Hui.,Yan, Xue-Mei.,Wang, Xin-rui.,Zhang, Dong-Xu.,Zhou, Qingyuan.,...&Mao, Jian-Feng.(2021).Centromere-Specific Retrotransposons and Very-Long-Chain Fatty Acid Biosynthesis in the Genome of Yellowhorn (Xanthoceras sorbifolium, Sapindaceae), an Oil-Producing Tree With Significant Drought Resistance.FRONTIERS IN PLANT SCIENCE,12. |
| MLA | Liu, Hui,et al."Centromere-Specific Retrotransposons and Very-Long-Chain Fatty Acid Biosynthesis in the Genome of Yellowhorn (Xanthoceras sorbifolium, Sapindaceae), an Oil-Producing Tree With Significant Drought Resistance".FRONTIERS IN PLANT SCIENCE 12(2021). |
入库方式： OAI收割
来源：植物研究所
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