• Ellis White posted an update 2 months ago

    The complete mitochondrial genome sequence of the Icefish, Chionobathyscus dewitti was determined by the Next Generation Sequencing (NGS) analysis. The complete mitogenome was 17,452 bp in length, which encoded the canonical 13 protein-coding genes, 22 tRNAs, two rRNAs, and two non-coding regions. As shown in the other notothenids, translocation of ND6 and an additional non-coding region were identified, which is different from the typical vertebrate mitochondrial genomes. The C. dewitti was clustered distinctly from the those in the Chinodraco and Chaenocephalus, which supported the idea that this species should be classified in the different genus, Chionobathyscus in the family Channichthyidae.The complete chloroplast genome of Angiopteris yunnanensis has been sequenced and assembled to provide genomic resources to reconstruct the phylogenetic relationship among species of Angiopteris as required to support conservation management of these ancient ferns. The chloroplast genome is 152,962 bp in length with the large single copy (LSC), the small single copy (SSC), and two inverted repeat (IR) regions of length 89,717bp, 20,585bp, and 21,330bp, respectively. We annotated 136 genes in total, including 89 coding genes, 39 tRNAs and 8 rRNAs. Comparative analyses confirmed the conservatism of plastid genome sequences among the species of Angiopteris and the distant related genus Christensenia.Paphiopedilum purpuratum, an endangered terrestrial orchid distributed in southwestern and south of China. In this study, the complete chloroplast genome (cpDNA) sequence of P. purpuratum was determined from Illumina pair-end sequencing data. With a total length of 158,459 bp in length and includes two inverted repeat regions (IRs) of 34,484 bp each, which were separated by a large single-copy region (LSC) 88,022 bp and a small single-copy region (SSC) 1,469 bp. The chloroplast genome contained 126 genes, including 74 protein conding genes,38 tRNA genes, and 8 rRNA genes. Phylogenetic analysis indicated that P. purpuratum, P. dianthum, P. niveum, P. delenatii, and P. armeniacum cluster together, placed them within genus Paphiopedilum. The complete chloroplast genome sequence of P. purpuratum will provide a useful resource for the evolutionary biology study of phylogenetic studies in Orchidaceae.The complete mitochondrial genome of Odontobutis platycephala collected from a native Korean river was determined by the bioinformatics assembly of the next-generation sequencing (NGS) reads. The circular mitogenome was 17,590 bp length which harbored canonical 13 protein-coding genes, 22 tRNAs, and 2 rRNAs, which was identical to those of family Odontobutidae. Twenty-eight genes were located on H strand, whereas remaining nine genes were on L strand. Except for COX1 gene (GTG), other 12 protein-coding genes were predicted typical start codons (ATG). Among the currently known mitogenome sequences, O. platycephala showed highest identity (96.98%) to Korean haplotype of O. platycephala (NC010199).The fruit of Cinnamomum cassia is an important spice material and its branch is a common Chinese herbal medicine as the family Lauraceae. In this study, we reported the complete chloroplast genome of C. cassia. The chloroplast genome of C. cassia with length of 152,675 bp is a characteristic quadripartite structure. The length of the inverted-repeats regions (IRs), large single-copy (LSC) region, and small single-copy (SSC) region of C. cassia was 20,068 bp, 93,663 and 18,876 bp. The chloroplast genome of C. cassia contains 124 genes, which includes 80 protein-coding genes (PCGs), 36 transfer RNA genes (tRNAs) and 8 ribosomal RNA genes (rRNAs). The overall nucleotide content of the chloroplast genome 30.0% A (Adenine), 30.8% T (Thymine), 19.7% C (Cytosine), 19.5% G (Guanine), and 39.2% GC content. Evolutionary relationship result showed that Cinnamomum cassia was most closely related to Cinnamomum parthenoxylon in the family Lauraceae by the Neighbor-Joining (NJ) method.The complete chloroplast genome sequences of the hot desert herb Fagonia indica (Zygophyllaceae) is being reported in this study. The total plastome length was 128,379 bp (GC content 34.02%). The gene order in F. indica was found similar to the angiosperm except for the loss of one copy of the IR and by the presence of a single, large inversion that reverses the order of the genes between rbcL and rps16. A total number of 115 unique coding genes which includes 80 protein-coding gene, 31 tRNA genes, and 4 rRNA genes were annotated. Protein Tyrosine Kinase inhibitor The phylogenetic analysis of representative plastomes from the Roisds revealed two distinct clades of Krameriaceae and Zygophyllaceae.Flavoperla is a small genus in Acroneuriinae, which was established by Chu but was treated as a synonym for a long time until Uchida and Harper recognized Flavoperla as a valid genus. This genus includes 15 species in the world now, including six species from China. Here, we sequenced and annotated the mitochondrial genome of Flavoperla sp. under the next-generation sequence technology, the first representative of Genus Flavoperla. The complete mitochondrial genome of Flavoperla sp. is 15,796 bp in length with an A + T content of 68.3% showed a positive AT-skew (0.037) and a negative GC-skew (-0.262). The gene order and organization of the mitochondrial genome is consistent with other stoneflies. The control region had the highest A + T content. Eleven PCGs started with the typical codon (ATN), the remaining PCGs started with TTG (ND1and ND5). All PCGs terminated with TAA/TAG, except COII and ND5 used single T. The phylogenetic tree by maximum likelihood (ML) and Bayesian (BI) methods supported that Flavoperla sp. was the sister group to Niponiella limbatella.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 single-copy 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.

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