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Complete chloroplast genome of Psammochloa villosa (Poaceae), a pioneer grass endemic to sand dunes in northwest China

Y. Liu, T. Lv, X. Su, Zh. Ren

 




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.

Key words: Complete chloroplast genome; Psammochloa villosa; Poaceae; Phylogenetic analysis; Northwest China

Tsitologiya i Genetika 2020, vol. 54, no. 6, pp. 73-74

  1. Key Laboratory of Medicinal Plant and Animal Resources in the Qinghai-Tibet Plateau, School of Life Science, Qinghai Normal University, Xining 810008, China
  2. Key Laboratory of Education Ministry of Environments and Resources in the Qinghai-Tibet Plateau, School of Life Science, Qinghai Normal University, Xining 810008, China
  3. School of Life Science, Shanxi University, Taiyuan 030006, China

E-mail: xusu8527972 126.com; zmren sxu.edu.cn

Y. Liu, T. Lv, X. Su, Zh. Ren Complete chloroplast genome of Psammochloa villosa (Poaceae), a pioneer grass endemic to sand dunes in northwest China, Tsitol Genet., 2020, vol. 54, no. 6, pp. 73-74.

In "Cytology and Genetics":
Y. Liu, T. Lv, X. Su & Zh. Ren Complete Chloroplast Genome of Psammochloa villosa (Poaceae), a Pioneer Grass Endemic to Sand Dunes in Northwest China, Cytol Genet., 2020, vol. 54, no. 6, pp. 582587
DOI: 10.3103/S0095452720060079


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