ABSTRACT
A peculiar tower-like ZnO nanostructure was synthesized using an economical and facile hydrothermal method, with zinc acetate [ZAc, Zn(CH3COO)2 · 2H2O] and hexamethylenetetramine (HMTA, C6H12N4) as the source materials. The as-synthesized tower-like ZnO was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). The characterization results indicated that the tower-like ZnO nanostructures are high-quality monocrystals. The as-synthesized ZnO nanostructures may have application in sensing area due to its high specific surface areas. The growth mechanism, as well as the optical properties of the as-synthesized tower-like ZnO nanostructures was also studied.
Subject(s)
Nanostructures , Zinc Oxide , Microscopy, Electron, Scanning , Microscopy, Electron, Transmission , X-Ray DiffractionABSTRACT
Border Collie dog is one of the famous breed of dog. In the present work we report the complete mitochondrial genome sequence of Border Collie dog for the first time. The total length of the mitogenome was 16,730 bp with the base composition of 31.6% for A, 28.7% for T, 25.5% for C, and 14.2% for G and an A-T (60.3%)-rich feature was detected. It harbored 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes and one non-coding control region (D-loop region). The arrangement of all genes was identical to the typical mitochondrial genomes of dogs.
Subject(s)
Dogs/genetics , Genome, Mitochondrial , Animals , Base Sequence/genetics , DNA, Mitochondrial/genetics , Molecular Sequence Data , Sequence Analysis, DNA/veterinaryABSTRACT
In this study, the complete mitochondrial genome sequence of the Chinese rhesus macaques Macaca mulatta lasiota has been reported for the first time. The total length of the mitogenome was 16,561 bp. It contained the typical structure, including 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes and 1 control region. The overall composition of the mitogenome was A (31.7%), G (12.8%), C (30.4%) and T (25.1%). The M. mulatta lasiota mitogenome had 21 tRNA genes folded into a typical clover-leaf secondary structure except for tRNA(Ser).
Subject(s)
Genome, Mitochondrial , Macaca mulatta/genetics , Animals , Base Composition/genetics , Base Sequence , DNA, Mitochondrial/genetics , Open Reading Frames/genetics , RNA, Transfer/geneticsABSTRACT
In this study, the complete mitochondrial genome sequence of Bombyx mori strain Chunyun (Lepidoptera: Bombycidae) has been reported for the first time. The total length of the mitogenome was 15,659 bp with 37 typical animal mitochondrial genes and 1 non-coding A + T-rich region. Its gene content and order were identical to those of other lepidopteran mitochondrial genomes. All protein-coding genes (PCGs) were initiated by ATN codons except for the COI gene, which began with CGA codon. Eleven PCGs stopped with termination codon TAA, whereas the COI and COII genes ended with single T. All tRNAs have typical structures of insect mitochondrial tRNAs. The 494 bp AT-rich region contains several features common to other lepidopterans, such as some structures of repeated motifs and microsatellite-like elements and a poly-A element upstream of transfer RNA M (trnM) gene.
Subject(s)
Bombyx/genetics , Genome, Mitochondrial/genetics , Lepidoptera/genetics , Animals , Codon, Terminator/genetics , Genes, Mitochondrial/genetics , Genome, Insect/genetics , Insect Proteins/genetics , Phylogeny , RNA, Ribosomal/genetics , RNA, Transfer/geneticsABSTRACT
In this study, the complete mitochondrial genome of Antheraea pernyi strain 731 (Lepidoptera: Saturniidae) is determined for the first time. It is a circular molecule of 15,570 bp in length, with 37 typical coding genes and one non-coding A T-rich region. Its gene order and content are identical to the common type found in most insect mitogenomes. All protein-coding genes (PCGs) start with a typical ATN initiation codon, except for the cox1 gene, which begins with TTAG codon. Nine genes used standard complete termination codon TAA, whereas the cox1, cox2, nad3, and nad5 genes end with single T. All tRNAs display typical secondary cloverleaf structures as those of other insects. Additionally, the non-coding AT-rich region is 553 bp long, located between rrnS and trnM genes. It contains some structures of repeated motifs and microsatellite-like elements characteristic of the other lepidopterons. Phylogenetic analysis showed that the Antheraea pernyi 731 was close to Saturniidae.
