Publications by authors named "Weian Deng"

Article Synopsis
  • The study presents a high-quality, chromosome-scale genome of Eucriotettix oculatus, a pygmy grasshopper known for thriving in heavily polluted environments.
  • The assembled genome spans 985.45 Mb across seven chromosomes and includes a notable repetitive element content of 46.42%, with a significant number of predicted protein-coding genes.
  • This genomic information is intended to aid future research on environmental adaptation in pygmy grasshoppers and support wider studies on the phylogeny, evolution, and behavior of the Orthoptera group.
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The pygmy grasshopper, , is a Chinese endemic species with an exceedingly limited distribution and fragile population structure, rendering it vulnerable to extinction. We present a high-continuity, chromosome-scale reference genome assembly to elucidate this species' distinctive biology and inform conservation. Employing an integrated sequencing approach, we achieved a 970.

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To study the heavy metal accumulation and its impact on insect exterior and chromosome morphology, and reveal the molecular mechanism of insects adapting to long-term heavy metal compound pollution habitats, this study, in the Diaojiang river basin, which has been polluted by heavy metals(HMs) for nearly a thousand years, two Eucriotettix oculatus populations was collected from mining and non-mining areas. It was found that the contents of 7 heavy metals (As, Cd, Pb, Zn, Cu, Sn, Sb) in E. oculatus of the mining area were higher than that in the non-mining 1-11 times.

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Mitochondrial genomes offer pragmatic genetic markers to reconstruct evolutionary relationships and inform taxonomic classifications. Here, we present complete mitochondrial sequences for four Chinese pygmy grasshoppers (Tetrigidae), aiming to reevaluate phylogenetic patterns and morphological taxonomy. Our 17,643 bp, 16,274 bp, 15,086 bp, and 15,398 bp mitogenomes of , , and , respectively, exhibit archetypal Tetrigidae architecture.

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Classification of species is commonly based on morphological, molecular, and distribution depending on the taxa. Zheng, Wei & Jiang, 2005 and Tinkham, 1937 are both wingless types of Tetrigidae with extremely similar morphological characteristics, and in the current taxonomic system they are placed in two different subfamilies, Metrodorinae and Tetriginae, respectively. It is difficult to clearly identify the species of these two genera by morphological characteristics, and molecular data is often needed to assist identification.

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The Eastern common groundhopper, , is a pygmy grasshopper species widely distributed in the Eastern Palearctic region, and shows a high degree of phenotypic variation. The classification of is difficult and frequently involved errors. Among the many species of Tetrigidae that have been described in China within the last decades, many synonyms of were found.

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The genus Serville (Orthoptera: Tetrigidae) from China is reviewed. One species, Zheng & Ou, 2003 (China: Yunnan) is redescribed, and a new record of (Hancock, 1915) from China is given. An annotated identification key for Chinese species of the genus is provided.

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A brief preliminary revision of the genus Scelimena Serville, 1838 (Tetrigidae: Scelimeninae: Scelimenini) from PR China is presented. Scelimena pyrroma Lao, Kasalo, Gao, Deng et Skejo sp. nov.

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Article Synopsis
  • Two new species of the genus Zhengitettix have been identified: Zhengitettix convexa from Yunnan and Zhengitettix fengyangshana from Zhejiang.
  • Zhengitettix convexa is characterized by its slightly convex pronotum disc and specific carina configurations.
  • Zhengitettix fengyangshana resembles another species but can be differentiated by distinct features such as the shape of its frontal ridge and pronotum.
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The genus Xistra Bolvar is reviewed. Two new species from China, Xistra hainanensis Deng, sp. nov.

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Many species of pygmy grasshoppers (Tetrigidae) exhibit leaf-like appearance, leaf-mimic pygmy grasshoppers mainly characterized by having high pronotal crest (= elevated median carina). A new genus of leaf-mimic Cladonotinae, Deltonotusoides gen. nov.

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The mitochondrial genome (mitogenome) of (Orthoptera: Tetrigoidea) was determined and analyzed. The complete mitochondrial genome is 16,006 bp in length, consisting of 37 genes, including 13 protein-coding (PCGs), 22 tRNA, 2 rRNA genes as well as an A + T-rich region. Ten PCGs initiated with a typical ATN codon (one with ATC, two with ATA, two with ATT, and five with ATG) and 13 terminated with complete stop codons.

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Heavy metal pollution in the environment is mostly manifested as a multi-elemental compound pollution. The effect of the long-term exposure to heavy metal pollution on the gut microbes of insects has remained unknown. For the current work, the population of Eucriotettix oculatus living in mining areas around the Diaojiang River with a history of hundreds of years of pollution, was selected along with the similar species living in non-mining areas to conduct a comparative study of their gut microbes.

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Pseudepitettix convexa Deng, sp. nov. is described with detailed illustrations of external morphology.

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The mitochondrial genome (mitogenome) of the (Orthoptera: Tetrigoidea) was sequenced and annotated. The complete mitogenome has a length of 16,696 bp and consists of 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes, and a A + T-rich region. Thirteen PCGs started with typical ATN codon and ended with complete stop codons (five with TAG, eight with TAA).

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The genus Concavetettix Deng, gen. nov. (type species: Concavetettix yunnanensis Deng, sp.

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Scelimeninae is a key member of the pygmy grasshopper community, and an important ecological indicator. No mitochondrial genomes of Scelimeninae have been reported to date, and the monophyly of Scelimeninae and its phylogenetic relationship within Tetrigidae is still unclear. We sequenced and analyzed eight nearly complete mitochondrial genomes representing eight genera of Scelimeninae.

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The mitochondrial genome (mitogenome) of the (Orthoptera: Tetrigidae: Tetriginae) was sequenced and annotated. The assembled mitochondrial genome was 14,947 bp, containing 45.8% of A, 15.

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Using next generation sequencing (NGS), we determined the mitochondrial genome of . The assembled mitochondrial genome of was found to be 15,089 bp, consisting of 37 genes (13 protein-coding genes, 22 tRNA genes, and two rRNA genes). The region that we failed to sequence was between and , and generally contained a putative AT-rich region.

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The nearly complete mitochondrial genome (mitogenome) of was determined and analyzed. This mitogenome was 14,652 bp in size and encoded 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes. The most common start codon is ATN, the most common termination codon is TAA and two genes have incomplete termination codon T (TA).

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The genus Macromotettixoides Zheng, Wei Jiang, 2005 is reviewed. Four new species of the genus, M. daiyunshanensis Deng, sp.

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The Chinese genera and species of the subfamily Cladonotinae are reviewed. A checklist is given for all genera and species. Three new species are described from China: Pseudepitettix hainanensis sp.

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Considerable effort has been devoted to elucidating the phylogenetic relationships of tetrigides. However, there is still no commonly accepted phylogenetic hypothesis. Therefore, the phylogenetic relationships among some subfamilies remain unclear; e.

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