التفاصيل البيبلوغرافية
| العنوان: |
Comparative and phylogenetic analysis of complete chloroplast genomes fromseven Neocinnamomum taxa (Lauraceae). |
| المؤلفون: |
Zhengying Cao, Linyi Yang, Yaxuan Xin, Wenbin Xu, Qishao Li, Haorong Zhang, Yuxiang Tu, Yu Song, Peiyao Xin |
| المصدر: |
Frontiers in Plant Science; 2023, p1-12, 12p |
| مصطلحات موضوعية: |
CHLOROPLAST DNA, GENOME size, LAURACEAE, WHOLE genome sequencing, GENOMICS, COMPARATIVE studies |
| مستخلص: |
The genus Neocinnamomumis considered to be one of themost enigmatic groups in Lauraceae, mainlydistributedintropical andsubtropical regionsofSoutheastAsia. The genus contains valuable oilseed andmedicinal tree species. However, there are few studies on the genus Neocinnamomum at present, and its interspecific relationship is still unclear. In order to explore the genetic structure and evolutionary characteristics of the Neocinnamomum chloroplast genome and to resolve the species relationships within the genus, comparative genomic and phylogenetic analyses were performed on the whole chloroplast genome sequences of 51 samples representing seven Neocinnamomum taxa. The whole Neocinnamomumchloroplast genome size ranged from150,753-150,956 bp, with a GC content of 38.8%-38.9%. A total of 128 genes were annotated within the Neocinnamomumchloroplast genome, including 84 protein coding genes, 8 rRNA genes, and 36 tRNA genes. Between 71-82 SSRs were detected, among which A/T base repeatswere themost common. The chloroplast genome contained a total of 31preferredcodons. Threehighly variableregions, trnN-GUU-ndhF, petA-psbJ, and ccsA-ndhD, were identified with Pi values > 0.004. Based on the whole chloroplast genome phylogenetic tree, the phylogenetic relationships among the seven Neocinnamomum taxa were determined. N. delavayi and N. fargesii were the most closely related species, and N. lecomtei was identified as the most basal taxon. In this study, the characteristics and sequence variation of the chloroplast genomes of seven Neocinnamomum taxa were revealed, and the genetic relationship among the species was clarified. The results of this study will provide a reference for subsequent molecular marker development and phylogenetic research of Neocinnamomum. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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