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Comparative analysis of the complete chloroplast genome sequences in psammophytic Haloxylon species (Amaranthaceae) | |
Dong, Wenpan1; Xu, Chao2; Li, Delu3; Jin, Xiaobai4; Li, Ruili4; Lu, Qi5; Suo, Zhili | |
2016 | |
发表期刊 | PEERJ |
ISSN | 2167-8359 |
卷号 | 4 |
摘要 | The Haloxylon genus belongs to the Amaranthaceae (formerly Chenopodiaceae) family. The small trees or shrubs in this genus are referred to as the King of psammophytic plants, and perform important functions in environmental protection, including wind control and sand fixation in deserts. To better understand these beneficial plants, we sequenced the chloroplast (cp) genomes of Haloxylon ammodendron (HA) and Haloxylon persicum (HP) and conducted comparative genomic analyses on these and two other representative Amaranthaceae species. Similar to other higher plants, we found that the Haloxylon cp genome is a quadripartite, double-stranded, circular DNA molecule of 151,570 bp in HA and 151,586 bp in HP. It contains a pair of inverted repeats (24,171 bp in HA and 24,177 bp in HP) that separate the genome into a large single copy region of 84,214 bp in HA and 84,217 bp in HP, and a small single copy region of 19,014 bp in HA and 19,015 bp in HP. Each Haloxylon cp genome contains 112 genes, including 78 coding, 30 tRNA, and four ribosomal RNA genes. We detected 59 different simple sequence repeat loci, including 44 mono-nucleotide, three di-nucleotide, one tri-nucleotide, and 11 tetra-nucleotide repeats. Comparative analysis revealed only 67 mutations between the two species, including 44 substitutions, 23 insertions/deletions, and two micro-inversions. The two inversions, with lengths of 14 and 3 bp, occur in the petA-psbJ intergenic region and rpl16 intron, respectively, and are predicted to form hairpin structures with repeat sequences of 27 and 19 bp, respectively, at the two ends. The ratio of transitions to transversions was 0.76. These results are valuable for future studies on Haloxylon genetic diversity and will enhance our understanding of the phylogenetic evolution of Amaranthaceae. |
关键词 | Chloroplast genome Psammophytes Structure Evolution Amaranthaceae Haloxylon |
学科领域 | Multidisciplinary Sciences |
DOI | 10.7717/peerj.2699 |
收录类别 | SCI |
语种 | 英语 |
WOS关键词 | COMPLETE NUCLEOTIDE-SEQUENCE ; DOMINANT DESERT TREE ; GENETIC DIVERSITY ; PHYLOGENETIC ANALYSIS ; SMALL INVERSIONS ; DNA ; EVOLUTION ; CHENOPODIACEAE ; CHROMOSOME ; PERSICUM |
WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
WOS记录号 | WOS:000388082300006 |
出版者 | PEERJ INC |
文献子类 | Article |
出版地 | LONDON |
资助机构 | China National Science and Technology Plan Project [2012BAD16B0101] ; 948 ProgramMinistry of Agriculture, China [2008-4-47] ; State Forestry Administration Public Welfare Research Foundation [201004010] ; Scientific and Technological Support Project from the Chinese Ministry of Science and Technology [2006BAD26B0101] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [30972412] ; National Forest Genetic Resources Platform [2005DKA21003] ; [80117B1001] ; [70009C1020] ; [70009C1036] |
作者邮箱 | zlsuo@ibcas.ac.cn |
作品OA属性 | Green Published, Green Submitted, gold |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/25028 |
专题 | 系统与进化植物学国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China 2.Peking Univ, Acad Adv Interdisciplinary Studies, Peking Tsinghua Ctr Life Sci, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Gansu Desert Control Res Inst, Lanzhou, Gansu, Peoples R China 5.Chinese Acad Sci, Beijing Bot Garden, Inst Bot, Beijing, Peoples R China 6.Chinese Acad Forestry, Inst Desertificat Studies, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Dong, Wenpan,Xu, Chao,Li, Delu,et al. Comparative analysis of the complete chloroplast genome sequences in psammophytic Haloxylon species (Amaranthaceae)[J]. PEERJ,2016,4. |
APA | Dong, Wenpan.,Xu, Chao.,Li, Delu.,Jin, Xiaobai.,Li, Ruili.,...&Suo, Zhili.(2016).Comparative analysis of the complete chloroplast genome sequences in psammophytic Haloxylon species (Amaranthaceae).PEERJ,4. |
MLA | Dong, Wenpan,et al."Comparative analysis of the complete chloroplast genome sequences in psammophytic Haloxylon species (Amaranthaceae)".PEERJ 4(2016). |
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