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

被引：1
|
作者：
Liu, Y. [1 ,2 ]
Lv, T. [1 ,2 ]
Su, X. [1 ,2 ]
Ren, Zh. [3 ]
机构：
[1] Qinghai Normal Univ, Sch Life Sci, Key Lab Med Plant & Anim Resources Qinghai Tibet, Xining 810008, Peoples R China
[2] Qinghai Normal Univ, Sch Life Sci, Key Lab, Educ Minist Environm & Resources Qinghai Tibet Pl, Xining 810008, Peoples R China
[3] Shanxi Univ, Sch Life Sci, Taiyuan 030006, Peoples R China
来源：
CYTOLOGY AND GENETICS | 2020年 / 54卷 / 06期
基金：
中国国家自然科学基金;
关键词：
complete chloroplast genome; Psammochloa villosa; Poaceae; phylogenetic analysis; Northwest China; CLONAL DIVERSITY;
D O I：
10.3103/S0095452720060079
中图分类号：
Q3 [遗传学];
学科分类号：
071007 ; 090102 ;
摘要：
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.
引用
收藏
页码：582 / 587
页数：6
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