| Autor: |
Duo Ran, Jingjing Li, Aixia Song, Wei Dong, Heping Cao, Hao Chen, Lin Zhang, Nicholas J. Provart, Wenying Li, Xiaoming Yang, Ze Li, Asher Pasha, Eddi Esteban, Ming Zou, Fan Liang, Meili Xie, Yanling Zeng, Depeng Wang, Hongxu Long, Meilan Liu, Liangsheng Zhang, Xiaofeng Tan, Jiang Hu, Guang Zhao |
| Rok vydání: |
2019 |
| Předmět: |
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| DOI: |
10.1101/2019.12.17.877803 |
| Popis: |
Tung tree (Vernicia fordii) is an economically important woody oil plant that produces tung oil containing a high proportion of eleostearic acid (∼80%). Here we report a high-quality, chromosome-scale tung tree genome sequence of 1.12 Gb with 28,422 predicted genes and over 73% repeat sequences. Tung tree genome was assembled by combining Illumina short reads, PacBio single-molecule real-time long reads and Hi-C sequencing data. Insertion time analysis revealed that the repeat-driven tung tree genome expansion might be due to long standing long terminal repeat (LTR) retrotransposon bursts and lack of efficient DNA deletion mechanisms. An electronic fluorescent pictographic (eFP) browser was generated based on genomic and RNA-seq data from 17 various tissues and developmental stages. We identified 88 nucleotide-binding site (NBS)-encoding resistance genes, of which 17 genes may help the tung tree resist the Fusarium wilt shortly after infection. A total of 651 oil-related genes were identified and 88 of them were predicted to be directly involved in tung oil biosynthesis. The fewer phosphoenolpyruvate carboxykinase (PEPC) genes, and synergistic effects between transcription factors and oil biosynthesis-related genes may contribute to high oil content in tung seeds. The tung tree genome should provide valuable resources for molecular breeding and genetic improvement. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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