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Complete Chloroplast Genome of Psammochloa villosa (Poaceae), a Pioneer Grass Endemic to Sand Dunes in Northwest China

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Abstract

Psammochloa villosa is a sandy perennial grass (Poaceae) endemic to the northwest China, which has extremely important ecological and genetic values. To explore characterization and phylogenetic analysis of the complete chloroplast (cp) genome of Psammochloa villosa, we firstly sequenced and compared it with other cp genomes within Poaceae in this study. The result showed that the cp genome of P. villosa was 135 541 bp in size with a high A + T content of 61.2%, and had a typical quadripartite structure with the large (LSC, 80 272 bp) and small (SSC, 12 453 bp) single copy regions separated by two copies of inverted repeats (IRs, 21 408 bp each). We successfully annotated 134 genes, including 79 protein-coding genes, 42 tRNAs genes and ten rRNAs genes. Among these genes, 42 genes locate in IR regions. Additionally, we constructed a phylogenetic tree based on 40 cp genome sequences, which indicated that P. villosa has a closer relationship with the other species in subfamily Pooideae.

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ACKNOWLEDGMENTS

The authors thank anonymous reviewers for their comments on the manuscript. This work was supported by grants from the National Natural Science Foundation of China (41 761 009, 31 260 052), the Natural Science Foundation of Qinghai Province (2019-ZJ-7011), the Key Laboratory of Medicinal Animal and Plant Resources of the Qinghai-Tibet Plateau in Qinghai Province (2017-ZJ-Y13) and the Young and Middle-Aged Research Foundation of Qinghai Normal University (2017-33).

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Authors and Affiliations

  1. Key Laboratory of Medicinal Plant and Animal Resources in the Qinghai-Tibet Plateau, School of Life Science, Qinghai Normal University, 810008, Xining, China

    Y. Liu, T. Lv & X. Su

  2. Key Laboratory of Education Ministry of Environments and Resources in the Qinghai-Tibet Plateau, School of Life Science, Qinghai Normal University, 810008, Xining, China

    Y. Liu, T. Lv & X. Su

  3. School of Life Science, Shanxi University, 030006, Taiyuan, China

    Zh. Ren

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  1. Y. Liu
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  2. T. Lv
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  3. X. Su
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  4. Zh. Ren
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Correspondence to X. Su or Zh. Ren.

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The authors declare that they have no conflict of interest. This article does not contain any studies involving animals or human participants performed by any of the authors.

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Liu, Y., Lv, T., Su, X. et al. Complete Chloroplast Genome of Psammochloa villosa (Poaceae), a Pioneer Grass Endemic to Sand Dunes in Northwest China. Cytol. Genet. 54, 582–587 (2020). https://doi.org/10.3103/S0095452720060079

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