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Analysis of mtDNA control region of an isolated population of Eld's deer (Rucervus eldii) reveals its vulnerability to inbreeding.

ABSTRACT: The Eld's deer or brow-antlered deer (Rucervus eldii) is one of the most endangered cervids of Southeast Asia. Geographically, it has three distinct subspecies; Sangai or Manipur's brow-antlered deer (R. e. eldii), Siamese brow-antlered deer (R. e. siamensis) and Thamin or Myanmar's brow antlered deer (R. e. thamin). We examined the genetic diversity of wild and captive populations of R. e. eldii and compared its relationship with other subspecies using mtDNA control region gene. During the analysis, only one haplotype was detected in 30 samples of R. e. eldii. No genetic variation was observed among the R. e. eldii populations. The reduced genetic diversity indicates that the population has passed through the bottleneck effect that might have resulted in the inbreeding depression.

SUBMITTER: Angom S

PROVIDER: S-EPMC7875480 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Analysis of mtDNA control region of an isolated population of Eld's deer (Rucervus eldii) reveals its vulnerability to inbreeding.

Angom Sangeeta S Kumar Ajit A Gupta Sandeep Kumar SK Hussain Syed Ainul SA

Mitochondrial DNA. Part B, Resources 20170513 1

The Eld's deer or brow-antlered deer (Rucervus eldii) is one of the most endangered cervids of Southeast Asia. Geographically, it has three distinct subspecies; Sangai or Manipur's brow-antlered deer (R. e. eldii), Siamese brow-antlered deer (R. e. siamensis) and Thamin or Myanmar's brow antlered deer (R. e. thamin). We examined the genetic diversity of wild and captive populations of R. e. eldii and compared its relationship with other subspecies using mtDNA c ...[more]

PMID: 34395881

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Project description:Background and aimThe pandemic (H1N1) 2009 influenza (H1N1pdm09) virus has affected both human and animal populations worldwide. The transmission of the H1N1pdm09 virus from humans to animals is increasingly more evident. Captive animals, particularly zoo animals, are at risk of H1N1pdm09 virus infection through close contact with humans. Evidence of exposure to the H1N1pdm09 virus has been reported in several species of animals in captivity. However, there is limited information on the H1N1pdm09 virus infection and circulation in captive animals. To extend the body of knowledge on exposure to the H1N1pdm09 virus among captive animals in Thailand, our study investigated the presence of antibodies against the H1N1pdm09 virus in two captive animals: Camelids and Eld's deer.Materials and methodsWe investigated H1N1pdm09 virus infection among four domestic camelid species and wild Eld's deer that were kept in different zoos in Thailand. In total, 72 archival serum samples from camelid species and Eld's deer collected between 2013 and 2014 in seven provinces in Thailand were analyzed for influenza antibodies using hemagglutination inhibition (HI), microneutralization, and western blotting (WB) assays.ResultsThe presence of antibodies against the H1N1pdm09 virus was detected in 2.4% (1/42) of dromedary camel serum samples and 15.4% (2/13) of Eld's deer serum samples. No antibodies were detected in the rest of the serum samples derived from other investigated camelids, including Bactrian camels (0/3), alpacas (0/5), and llamas (0/9). The three positive serum samples showed HI antibody titers of 80, whereas the neutralization titers were in the range of 320-640. Antibodies specific to HA and NP proteins in the H1N1pdm09 virus were detected in positive camel serum samples using WB. Conversely, the presence of the specific antibodies in the positive Eld's deer serum samples could not be determined using WB due to the lack of commercially labeled secondary antibodies.ConclusionThe present study provided evidence of H1N1pdm09 virus infection in the captive dromedary camel and Eld's deer in Thailand. Our findings highlight the need for continuous surveillance for influenza A virus in the population of dromedary camels and Eld's deer. The susceptible animal populations in close contact with humans should be closely monitored. Further study is warranted to determine whether Eld's deer are indeed a competent reservoir for human influenza virus.

Dataset Information

Analysis of mtDNA control region of an isolated population of Eld's deer (Rucervus eldii) reveals its vulnerability to inbreeding.

Publications

Analysis of mtDNA control region of an isolated population of Eld's deer (<i>Rucervus eldii</i>) reveals its vulnerability to inbreeding.

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