文献类型：期刊文献

英文题名：Phylogenetic studies and comparative chloroplast genome analyses elucidate the basal position of halophyte Nitraria sibirica (Nitrariaceae) in the Sapindales

作者：Lu, Lu[1,2,3] Li, Xia[1] Hao, Zhaodong[1,2] Yang, Liming[3] Zhang, Jingbo[4] Peng, Ye[3] Xu, Haibin[3] Lu, Ye[1] Zhang, Jin[5] Shi, Jisen[1,2] Chen, Jinhui[1,2] Cheng, Tielong[3]

第一作者：Lu, Lu

通信作者：Cheng, TL[1]

机构：[1]Nanjing Forestry Univ, Key Lab Forest Genet & Biotechnol, Minist Educ, Nanjing, Jiangsu, Peoples R China;[2]Coinnovat Ctr Sustainable Forestry Southern China, Nanjing, Jiangsu, Peoples R China;[3]Nanjing Forestry Univ, Coll Biol & Environm, Longpan Rd 159, Nanjing 210037, Jiangsu, Peoples R China;[4]Chinese Acad Forestry, Expt Ctr Desert Forestry, Dengkou, Inner Mongolia, Peoples R China;[5]Univ Calif Davis, Ctr Comparat Oncol, Davis, CA 95616 USA

年份：2018

卷号：29

期号：5

起止页码：745-755

外文期刊名：MITOCHONDRIAL DNA PART A

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000438996900011)】；

基金：This work was supported by National High Technology Research and Development Program of China (863 Program, 2013AA102705), National Science Foundation of China (No. 31270707), Qing Lan Project, Doctorate Fellowship Foundation of Nanjing Forestry University grant 163010107, 333 project of Jiangsu Province, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, and Priority Academic Program Development of Jiangsu Higher Education Institutions.

语种：英文

外文关键词：Nitraria sibirica; phylogenetic analysis; comparative chloroplast genome; inverted repeat expansion

摘要：Nitraria sibirica is a halophyte and belongs to the family Nitrariaceae. The chloroplast genome of Nitraria sibirica (159,466 bp) has a quadripartite structure, which consists of a large single-copy (87,914 bp) region, a small single-copy (18,316 bp) region, and a pair of inverted repeats (26,618 bp). Sequencing analyses indicate that the chloroplast genome contains 113 distinct genes, including 79 peptide-coding genes, 30 transfer RNA genes, and 4 ribosomal RNA genes. We also identified 105 perfect simple sequence repeats, 12 most divergent non-coding regions, and 6 most divergent coding regions when compared to the chloroplast genomes of the Sapindales plants. Phylogenetic analyses using the concatenated amino acid sequences of 58 protein-coding genes from 48 species suggest that the 'basal' position of Nitraria sibirica belongs to the Sapindales Glade. We also found that the inverted repeat expansion resulted in a duplication of rps19 in Nitraria sibirica when comparing its chloroplast genome structure with Theobroma cacao, Vitis vinifera, Eucalyptus erythrocorys and Arabidopsis thaliana. The duplication of rps19 gene was consistent with that in Zanthoxylum piperitum, Azadirachta indica, Sapindus mukorossi and Citrus sinensis, all of which belong to the order Sapindales, but different from most Rosids plants. In summary, the analyses of Nitraria sibirica chloroplast genome not only provide insights into comparative genome analysis, but also pave the way for a better understanding of the phylogenetic relationships within the Sapindales.