The chromosome-scale genome of Magnolia officinalis provides insight into the evolutionary position of magnoliids
| Autor: | Cheng Peng, Bo Ren, Yanpeng Yin, Xianmei Yin, Junren Chen, Luojing Zhou, Jihai Gao, Feixia Hou, Hongjin Zhong, Li Wang, Jin Pei, Xiaodong Shi, Fu Peng, Xiaofang Xie |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | iScience iScience, Vol 24, Iss 9, Pp 102997-(2021) |
| ISSN: | 2589-0042 |
| Popis: | Summary Magnolia officinalis, a representative tall aromatic tree of the Magnoliaceae family, is a medicinal plant that is widely used in diverse industries from medicine to cosmetics. We report a chromosome-scale draft genome of M. officinalis, in which ∼99.66% of the sequences were anchored onto 19 chromosomes with the scaffold N50 of 76.62 Mb. We found that a high proportion of repetitive sequences was a common feature of three Magnoliaceae with known genomic data. Magnoliids were a sister clade to eudicots-monocots, which provided more support for understanding the phylogenetic position among angiosperms. An ancient duplication event occurred in the genome of M. officinalis and was shared with Lauraceae. Based on RNA-seq analysis, we identified several key enzyme-coding gene families associated with the biosynthesis of lignans in the genome. The construction of the M. officinalis genome sequence will serve as a reference for further studies of Magnolia, as well as other Magnoliaceae. Graphical abstract Highlights • We provide a chromosome-scale genome for Magnolia officinalis • We explore the phylogenetic position of Magnoliids • Analysis for lignan biosynthetic pathway is reported • We identify terpenes synthase in the floral fragrance composition of Magnolia Biological sciences; Genetics; Evolutionary biology; Bioinformatics; Genomic analysis; Genomics |
| Databáze: | OpenAIRE |
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