125 results match your criteria: "Guangzhou Zoo & Guangzhou Wildlife Research Center[Affiliation]"

Using Recombinase-Aid Amplification Combined with Argonaute for Rapid Sex Identification in Flamingo ().

Animals (Basel)

December 2024

State Key Laboratory of Swine and Poultry Breeding Industry, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China.

Flamingos () are among the oldest birds worldwide and are loved by people for their bright red feathers. In addition, flamingos are sexually monomorphic birds, and distinguishing between males and females is difficult. The polymerase chain reaction (PCR) is widely used for sex identification.

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Identification of host proteins that interact with African swine fever virus pE301R.

Eng Microbiol

June 2024

State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao 266237, China.

African swine fever virus (ASFV) infection poses enormous threats and challenges to the global pig industry; however, no effective vaccine is available against ASFV, attributing to the huge viral genome (approximately189 kb) and numerous encoding products (>150 genes) due to the limited understanding on the molecular mechanisms of viral pathogenesis. Elucidating the host-factor/viral-protein interaction network will reveal new targets for developing novel antiviral therapies. Using proteomic analysis, we identified 255 cellular proteins that interact with the ASFV-encoded pE301R protein when transiently expressed in HEK293T cells.

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The traditional concept of "tonic food" and demand for traditional Chinese medicine make pangolins the largest population of illegally smuggled mammals in the world. Illegal hunting and trade are not only responsible for the sharp decline in pangolin populations but also provide conditions for pathogenic transmission. In 2021, we rescued 21 confiscated unhealthy Malayan pangolins, none of which survived.

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The difficulty in bird sex identification has made molecular sexing an important way to solve this problem. The conventional polymerase chain reaction (PCR) methods are time-consuming and dependent on laboratory equipment. Recombinase-aided amplification (RAA) is a rapid, specific, sensitive, and cost-effective isothermal nucleic acid amplification technique.

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Article Synopsis
  • Researchers identified a blood parasite from the order Haemosporida in a sick grey crowned crane brought to China, which causes malaria-like diseases.
  • They used both microscopy for morphological identification and nested-PCR for molecular analysis, finding a close genetic match to Haemoproteus antigonis.
  • The study highlights the importance of strict quarantine measures for imported animals to prevent the introduction of new pathogens, as the crane likely acquired the parasite during its importation.
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Identification of and sp. in Malayan pangolins-a potential threat to public health?

mSphere

October 2024

State Key Laboratory for Animal Disease Control and Prevention, Guangdong Laboratory for Lingnan Modern Agriculture, Center for Emerging and Zoonotic Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.

Unlabelled: The discovery of severe acute respiratory syndrome-coronavirus-2-like and Middle East respiratory syndrome-coronavirus-like viruses in Malayan pangolins has raised concerns about their potential role in the spread of zoonotic diseases. Herein, we describe the isolation and whole-genome sequencing of potentially zoonotic two bacterial pathogens from diseased Malaysian pangolins ()- and sp. The newly identified species were designated as P69 and sp.

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Article Synopsis
  • Bertiella studeri is a type of flatworm usually found in monkeys, but sometimes it can infect people by accident.!
  • Recently, there's been a rare case of a monkey getting infected by B. studeri while also having another illness called tuberculosis.!
  • This study is important because it warns people about the rare chance of getting sick from this worm, even though fewer infections have been reported lately.!
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Sex identification in avian species is essential for biodiversity conservation and ecological studies. However, the sex of nearly half of the birds could not be identified based on their external appearance. It is difficult to visually identify sex to monitor the ecology and conservation of wild populations.

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Horseshoe bats (genus , family Rhinolophidae) represent an important group within chiropteran phylogeny due to their distinctive traits, including constant high-frequency echolocation, rapid karyotype evolution, and unique immune system. Advances in evolutionary biology, supported by high-quality reference genomes and comprehensive whole-genome data, have significantly enhanced our understanding of species origins, speciation mechanisms, adaptive evolutionary processes, and phenotypic diversity. However, genomic research and understanding of the evolutionary patterns of are severely constrained by limited data, with only a single published genome of currently available.

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Alpha-fetoprotein (AFP) is a structural serum glycoprotein that plays vital roles in reproduction and mammalian development. Analysis of serum prolactin (PRL) is considered one of the useful methods for diagnosing pregnancy in Asian elephants. However, the expression profiles of AFP in pregnant and nonpregnant Asian elephants remain unclear, nor is the relationship with PRL.

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Multi-omic Analyses Shed Light on The Genetic Control of High-altitude Adaptation in Sheep.

Genomics Proteomics Bioinformatics

July 2024

International Joint Agriculture Research Center for Animal Bio-Breeding, Ministry of Agriculture and Rural Affairs/Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China.

Sheep were domesticated in the Fertile Crescent and then spread globally, where they have been encountering various environmental conditions. The Tibetan sheep has adapted to high altitudes on the Qinghai-Tibet Plateau over the past 3000 years. To explore genomic variants associated with high-altitude adaptation in Tibetan sheep, we analyzed Illumina short-reads of 994 whole genomes representing ∼ 60 sheep breeds/populations at varied altitudes, PacBio High fidelity (HiFi) reads of 13 breeds, and 96 transcriptomes from 12 sheep organs.

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Habitat connectivity drives panda recovery.

Curr Biol

September 2024

Jiangxi Provincial Key Laboratory of Conservation Biology, College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China; Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Center for Evolution and Conservation Biology, Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China. Electronic address:

Globally, the majority of habitat loss is irreversible, and most species will never recover their former ranges. We have learned a great deal about what leads to population decline and extinction, but less about recovery. The recently downlisted giant panda provides a unique opportunity to understand the mechanisms of species recovery.

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Genetic and recombination heterogeneity of canine bufaviruses detected in diarrheal dogs in China.

Vet J

August 2024

Henan Provincial Engineering Laboratory of Insects Bio-reactor, Henan Provincial Engineering, and Technology Center of Health Products for Livestock and Poultry, Henan Provincial Engineering and Technology Center of Animal Disease Diagnosis and Integrated Control, Nanyang Normal University, Nanyang 473061, PR China.

Article Synopsis
  • Bufavirus (BuV) and its canine counterpart (CBuV) were investigated through samples from dogs with diarrhea in China, resulting in 14 positive detections among 622 anal swabs taken from 2018 to 2022.
  • The study involved sequencing the genomes of these strains and revealed potential recombination events with strains from Hungary and Italy, highlighting a genetic link.
  • It also found that while the CBuVs are conserved in a certain protein, there are significant mutations in another protein that might affect vaccine development and understanding of the virus's evolution.
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Paramyxoviruses are important pathogens affecting various animals, including mammals and humans. Parainfluenza virus 5 (PIV5)-a member of the family -is a major threat to the health of mammals and humans. However, studies on terrestrial wild animals infected with PIV5 are scanty.

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Towards an actionable One Health approach.

Infect Dis Poverty

April 2024

School of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China.

Background: Despite the increasing focus on strengthening One Health capacity building on global level, challenges remain in devising and implementing real-world interventions particularly in the Asia-Pacific region. Recognizing these gaps, the One Health Action Commission (OHAC) was established as an academic community for One Health action with an emphasis on research agenda setting to identify actions for highest impact.

Main Text: This viewpoint describes the agenda of, and motivation for, the recently formed OHAC.

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Golden snub-nosed monkeys show inconsistent frequency of placentophagy between wild and captive populations, with almost all births in the wild but around half of the births in captivity accompanied by the female's consumption of placenta. This aligns with nutritional demands-driven placentophagy, as captive populations are generally under less nutritional constraints for breeding females than the wild population. Placentophagy is probably adaptive in the wild and under positive selection due to nutritional benefits to both mothers and infants.

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Bird sex chromosomes play a unique role in sex-determination, and affect the sexual morphology and behavior of bird species. Core waterbirds, a major clade of birds, share the common characteristics of being sexually monomorphic and having lower levels of inter-sexual conflict, yet their sex chromosome evolution remains poorly understood. Here, by we analyse of a chromosome-level assembly of a female crested ibis (Nipponia nippon), a typical core waterbird.

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Pangolins are susceptible to a variety of gastrointestinal nematodes due to their burrowing lifestyle and feeding habits, and few parasitic nematodes have been reported. Here, a Chinese pangolin with old wounds on its leg and tail was rescued from the Heyuan City, Guangdong Province. The cox1 and SSU rRNA of the worms from the intestine of the Chinese pangolin had the highest sequence identity of 89.

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-associated bacteria play a key role in obtaining nutrition from bamboo for the giant panda ().

Microbiol Spectr

March 2024

Sichuan Provincial Engineering Laboratory for Prevention and Control Technology of Veterinary Drug Residue in Animal-origin Food, School of Laboratory Medicine, Chengdu Medical College, Chengdu, China.

Unlabelled: Gut microbiota plays a vital role in obtaining nutrition from bamboo for giant pandas. However, low cellulase activity has been observed in the panda's gut. Besides, no specific pathway has been implicated in lignin digestion by gut microbiota of pandas.

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Populations of Eurasian otters , one of the most widely distributed apex predators in Eurasia, have been depleted mainly since the 1950s. However, a lack of information about their genomic diversity and how they are organized geographically in East Asia severely impedes our ability to monitor and conserve them in particular management units. Here, we re-sequenced and analyzed 20 otter genomes spanning continental East Asia, including a population at Kinmen, a small island off the Fujian coast, China.

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Habitat degradation and loss of genetic diversity are common threats faced by almost all of today's wild cats. Big cats, such as tigers and lions, are of great concern and have received considerable conservation attention through policies and international actions. However, knowledge of and conservation actions for small wild cats are lagging considerably behind.

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Duck Tembusu virus (DTMUV) is an emerging pathogen that poses a serious threat to the duck industry in China. Currently, polymerase chain reaction (PCR), quantitative PCR (qPCR) and reverse transcription loop-mediated isothermal amplification (RT-LAMP) are commonly used for DTMUV detection. However, these methods require complex steps and special equipment and easily cause false-positive results.

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A multilocus DNA mini-barcode assay to identify twenty vertebrate wildlife species.

iScience

November 2023

Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China.

The world faces significant challenges in preserving the diversity of vertebrate species due to wildlife crimes. DNA barcoding, an effective molecular marker for insufficient nuclear DNA, is an authentic and quick identification technique to trace the origin of seized samples in forensic investigations. Here, we present a multiplex assay capable of identifying twenty vertebrate wildlife species utilizing twenty species-specific primers that target short fragments of the mitochondrial , , , and genes.

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Article Synopsis
  • Island endemic birds, like the Swinhoe's pheasant, represent a significant portion of recent vertebrate extinctions, but their evolutionary traits remain poorly understood.
  • This study assembled a high-quality genome for the Swinhoe's pheasant, revealing rapid chromosome rearrangements and natural selection favoring genes linked to reproduction and body size—key factors for island adaptation.
  • Comparisons with the closely related silver pheasant showed more genetic drift and inbreeding in the Swinhoe's pheasant, highlighting the unique demographic histories shaped by island versus mainland climates during the last glacial period and emphasizing the need for genetic conservation efforts.
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