Cucumber, Cucumis sativus is one of the most cultivated vegetables in the world, which is mostly consumed raw in China. The complete chloroplast genome of C. sativus was assembled and annotated in this study. Its size was 155,525 bp, containing a large single-copy region of 86,878 bp, a small singlecopy region of 18,269 bp and a pair of IR regions of 25,189 bp. Whole chloroplast genome of C. sativus contains 131 genes, including 77 protein-coding genes (PCGs), 46 transfer RNA genes (tRNAs), and 8 ribosome RNA genes (rRNAs). The overall nucleotide composition is: A of 31.1%, T of 31.9%, C of 18.8% and G of 18.2%, with a total GC content of the chloroplast genome 37.0% and AT of 63.0%. Genetic and phylogenetic analysis based on 10 plants species confirmed the position of C. sativus closely related to Cucurbitaceae species of Cucumis hystrix.
Capsicum annuum is one of the oldest domesticated crops in the Americas, which is also the most widely grown spice crop in the world. The complete chloroplast genome of C. annuum has been assembled and annotated in this paper. Its length was 156,781 bp, containing a large single-copy region of 87,367 bp, a small single-copy region of 17,850 bp, and a pair of IR regions of 25,782 bp in each. The whole chloroplast genome of C. annuum contains 135 genes, including 89 protein-coding genes (PCGs), 38 transfer RNA genes (tRNAs), and 8 ribosome RNA genes (rRNAs). The overall nucleotide composition is: A of 30.8%, T of 31.5%, C of 19.1% and G of 18.6%, with a total GC content of the chloroplast genome 37.7% and AT of 62.3%. Phylogenetic relationship analysis was based on 10 plant species using the maximum-likelihood (ML) methods, which showed that the position of C. annuum clustered with C. galapagoense.
The development and application of the digital model database of insects has an academic and also practical value. To find a proper way of building 3D Virtual Reality Insect Model, we briefly studied the application in different fields of digital modeling technology and points out that artificial modeling technology is suitable for the 3D virtual insect data model. We also discuss the pipeline of making digital model database of insects and take an example of constructing digital model on bark beetle, Ips typographus L.
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