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Mitochondrial DNA B Resour ; 6(5): 1599-1600, 2021 May 04.
Artigo em Inglês | MEDLINE | ID: mdl-34027065

RESUMO

We report the complete mitochondrial genome of the Small-Branded Swift: Pelopidas mathias, which is an important pest of rice. The total length of the circular double-stranded mitogenome is 15,524 bp, containing 13 protein-coding genes (PCGs), 22 transfer RNAs (tRNAs), 2 ribosomal RNAs (rRNAs) and a non-coding AT-rich region with the nucleotide base composition of 40.07% A, 40.83% T, 11.59% C, and 7.51% G, showing a relatively strong AT bias. The gene order and organization are consistent with typical Lepidoptera species. This work will provide molecular data support for the study of the phylogeny and evolution in the family Hesperiidae.

3.
Artigo em Inglês | MEDLINE | ID: mdl-28262579

RESUMO

Portable visible and near-infrared (vis/NIR) spectroscopy was used to characterize and differentiate the five phyllosilicate minerals and relate the bands to the mineral structure. The feature band at 2160-2170nm (4600-4630cm-1) has been assigned to the high presence of Al-OH and is described as typical of dioctahedral phyllosilicate with OH groups coordinated around Al, and the feature occurred near 2322nm is considered to be due to a combination of the OH stretch with the MgOH deformation mode, which is a typical of trioctahedral phyllosilicates. The presence of the bands 1400 and 1900nm in vis/NIR spectrum indicated that some water is present in this sample. The absence of a 1900nm band but the presence of a 1400nm band indicates that only OH is present. Moreover, the significant differences between these five minerals were observed by the portable vis/NIR spectroscopy. The results show a potential for the application of vis/NIR spectroscopy in the identification and quantification of these minerals in the field. Further, such analysis can also provide important constraints on the nature of putative global and local-scale mineralogical transitions on Mars.

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