期刊论文详细信息
BMC Plant Biology
Insights into the phylogeny and chloroplast genome evolution of Eriocaulon (Eriocaulaceae)
Research
Zhixiang Zhang1  Yongwei Gao1  Rongyan Deng1  Kangjia Liu1  Xinyu Liu1  Enze Li1  Wenpan Dong1 
[1] Laboratory of Systematic Evolution and Biogeography of Woody Plants, School of Ecology and Nature Conservation, Beijing Forestry University, 100083, Beijing, China;
关键词: Eriocaulon;    Phylogenetic relationships;    Chloroplast genome;    Divergence time;   
DOI  :  10.1186/s12870-023-04034-z
 received in 2022-08-28, accepted in 2023-01-02,  发布年份 2023
来源: Springer
PDF
【 摘 要 】

BackgroundEriocaulon is a wetland plant genus with important ecological value, and one of the famous taxonomically challenging groups among angiosperms, mainly due to the high intraspecific diversity and low interspecific variation in the morphological characters of species within this genus. In this study, 22 samples representing 15 Eriocaulon species from China, were sequenced and combined with published samples of Eriocaulon to test the phylogenetic resolution using the complete chloroplast genome. Furthermore, comparative analyses of the chloroplast genomes were performed to investigate the chloroplast genome evolution of Eriocaulon.ResultsThe 22 Eriocaulon chloroplast genomes and the nine published samples were proved highly similar in genome size, gene content, and order. The Eriocaulon chloroplast genomes exhibited typical quadripartite structures with lengths from 150,222 bp to 151,584 bp. Comparative analyses revealed that four mutation hotspot regions (psbK-trnS, trnE-trnT, ndhF-rpl32, and ycf1) could serve as effective molecular markers for further phylogenetic analyses and species identification of Eriocaulon species. Phylogenetic results supported Eriocaulon as a monophyletic group. The identified relationships supported the taxonomic treatment of section Heterochiton and Leucantherae, and the section Heterochiton was the first divergent group. Phylogenetic tree supported Eriocaulon was divided into five clades. The divergence times indicated that all the sections diverged in the later Miocene and most of the extant Eriocaulon species diverged in the Quaternary. The phylogeny and divergence times supported rapid radiation occurred in the evolution history of Eriocaulon.ConclusionOur study mostly supported the taxonomic treatment at the section level for Eriocaulon species in China and demonstrated the power of phylogenetic resolution using whole chloroplast genome sequences. Comparative analyses of the Eriocaulon chloroplast genome developed molecular markers that can help us better identify and understand the evolutionary history of Eriocaulon species in the future.

【 授权许可】

CC BY   
© The Author(s) 2023

【 预 览 】
附件列表
Files Size Format View
RO202305110941851ZK.pdf 3304KB PDF download
Fig. 58 1850KB Image download
Fig. 2 226KB Image download
13690_2022_1010_Article_IEq1.gif 1KB Image download
Fig. 61 1677KB Image download
13690_2022_1010_Article_IEq10.gif 1KB Image download
Fig. 2 599KB Image download
Fig. 1 686KB Image download
MediaObjects/12888_2023_4533_MOESM1_ESM.docx 14KB Other download
42004_2022_800_Article_IEq86.gif 1KB Image download
Fig. 1 112KB Image download
Fig. 8 2160KB Image download
Scheme 1 1128KB Image download
MediaObjects/12974_2023_2701_MOESM3_ESM.tif 9071KB Other download
【 图 表 】

Scheme 1

Fig. 8

Fig. 1

42004_2022_800_Article_IEq86.gif

Fig. 1

Fig. 2

13690_2022_1010_Article_IEq10.gif

Fig. 61

13690_2022_1010_Article_IEq1.gif

Fig. 2

Fig. 58

【 参考文献 】
  • [1]
  • [2]
  • [3]
  • [4]
  • [5]
  • [6]
  • [7]
  • [8]
  • [9]
  • [10]
  • [11]
  • [12]
  • [13]
  • [14]
  • [15]
  • [16]
  • [17]
  • [18]
  • [19]
  • [20]
  • [21]
  • [22]
  • [23]
  • [24]
  • [25]
  • [26]
  • [27]
  • [28]
  • [29]
  • [30]
  • [31]
  • [32]
  • [33]
  • [34]
  • [35]
  • [36]
  • [37]
  • [38]
  • [39]
  • [40]
  • [41]
  • [42]
  • [43]
  • [44]
  • [45]
  • [46]
  • [47]
  • [48]
  • [49]
  • [50]
  • [51]
  • [52]
  • [53]
  • [54]
  • [55]
  • [56]
  • [57]
  • [58]
  • [59]
  • [60]
  • [61]
  • [62]
  • [63]
  • [64]
  • [65]
  • [66]
  • [67]
  • [68]
  • [69]
  • [70]
  • [71]
  • [72]
  • [73]
  • [74]
  • [75]
  • [76]
  • [77]
  • [78]
  • [79]
  • [80]
  • [81]
  • [82]
  • [83]
  • [84]
  • [85]
  • [86]
  文献评价指标  
  下载次数:3次 浏览次数:2次