| Plastid Phylogenomic Analyses Resolve Tofieldiaceae as the Root of the Early Diverging Monocot Order Alismatales | |
Luo, Yang1,2,3; Ma, Peng-Fei1,2; Li, Hong-Tao2 ; Yang, Jun-Bo2; Wang, Hong1,2; Li, De-Zhu1,2
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| 2016-03-01 | |
| 发表期刊 | GENOME BIOLOGY AND EVOLUTION
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| 卷号 | 8期号:3页码:932-945 |
| 摘要 | The predominantly aquatic order Alismatales, which includes approximately 4,500 species within Araceae, Tofieldiaceae, and the core alismatid families, is a key group in investigating the origin and early diversification of monocots. Despite their importance, phylogenetic ambiguity regarding the root of the Alismatales tree precludes answering questions about the early evolution of the order. Here, we sequenced the first complete plastid genomes from three key families in this order: Potamogeton perfoliatus (Potamogetonaceae), Sagittaria lichuanensis (Alismataceae), and Tofieldia thibetica (Tofieldiaceae). Each family possesses the typical quadripartite structure, with plastid genome sizes of 156,226, 179,007, and 155,512 bp, respectively. Among them, the plastid genome of S. lichuanensis is the largest in monocots and the second largest in angiosperms. Like other sequenced Alismatales plastid genomes, all three families generally encode the same 113 genes with similar structure and arrangement. However, we detected 2.4 and 6 kb inversions in the plastid genomes of Sagittaria and Potamogeton, respectively. Further, we assembled a 79 plastid protein-coding gene sequence data matrix of 22 taxa that included the three newly generated plastid genomes plus 19 previously reported ones, which together represent all primary lineages of monocots and outgroups. In plastid phylogenomic analyses using maximum likelihood and Bayesian inference, we show both strong support for Acorales as sister to the remaining monocots and monophyly of Alismatales. More importantly, Tofieldiaceae was resolved as the most basal lineage within Alismatales. These results provide new insights into the evolution of Alismatales as well as the early-diverging monocots as a whole. |
| 关键词 | Complete Plastid Genome Genome Evolution Phylogenomics Alismatales Basal Monocots |
| DOI | 10.1093/gbe/evv260 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000373839200036 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kib.ac.cn/handle/151853/26209 |
| 专题 | 中国科学院东亚植物多样性与生物地理学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Div & Biogeog East Asia, Kunming, Yunnan, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming, Yunnan, Peoples R China 3.Univ Chinese Acad Sci, Kunming Coll Life Sci, Kunming, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Yang,Ma, Peng-Fei,Li, Hong-Tao,et al. Plastid Phylogenomic Analyses Resolve Tofieldiaceae as the Root of the Early Diverging Monocot Order Alismatales[J]. GENOME BIOLOGY AND EVOLUTION,2016,8(3):932-945. |
| APA | Luo, Yang,Ma, Peng-Fei,Li, Hong-Tao,Yang, Jun-Bo,Wang, Hong,&Li, De-Zhu.(2016).Plastid Phylogenomic Analyses Resolve Tofieldiaceae as the Root of the Early Diverging Monocot Order Alismatales.GENOME BIOLOGY AND EVOLUTION,8(3),932-945. |
| MLA | Luo, Yang,et al."Plastid Phylogenomic Analyses Resolve Tofieldiaceae as the Root of the Early Diverging Monocot Order Alismatales".GENOME BIOLOGY AND EVOLUTION 8.3(2016):932-945. |
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