Predictive genetic plan for a captive population of the Chinese goral ( Naemorhedus griseus ) and prescriptive action for  ex situ  and  in situ  conservation management in Thailand

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Abstract

Captive breeding programs for endangered species can increase population numbers for eventual reintroduction to the wild. Captive populations are typically small and isolated, which results in inbreeding and reduction of genetic variability, and may lead to an increased risk of extinction. The Omkoi Wildlife Breeding Center maintains the only Thai captive Chinese goral ( Naemorhedus griseus) population, and has plans to reintroduce individuals into natural isolated populations. Genetic variability was assessed within the captive population using microsatellite data. Although no bottleneck was observed, genetic variability was low (allelic richness = 7.091 ± 0.756, H _e = 0.455 ± 0.219; H _e < H _o) and 11 microsatellite loci were informative that likely reflect inbreeding. Estimates of small effective population size and limited numbers of founders, combined with wild-born individuals within subpopulations, tend to cause reduction of genetic variability over time in captive programs. This leads to low reproductive fitness and limited ability to adapt to environmental change, thereby increasing the risk of extinction. Management of captive populations as evolutionarily significant units with diverse genetic backgrounds offers an effective strategy for population recovery. Relocation of individuals among subpopulations, or introduction of newly captured wild individuals into the captive program will help to ensure the future security of Chinese goral. Implications for future conservation actions for the species are discussed herein.

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Most cited references 41

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Author and article information

Contributors

Kornsuang Jangtarwan: Role: Formal analysisRole: InvestigationRole: MethodologyRole: VisualizationRole: Writing – original draftRole: Writing – review & editing

Peerapong Kamsongkram: Role: Formal analysisRole: InvestigationRole: MethodologyRole: VisualizationRole: Writing – original draftRole: Writing – review & editing

Navapong Subpayakom: Role: Formal analysisRole: InvestigationRole: MethodologyRole: VisualizationRole: Writing – original draftRole: Writing – review & editing

Siwapech Sillapaprayoon: Role: Writing – review & editing

Narongrit Muangmai: Role: Writing – review & editing

Adisorn Kongphoemph: Role: ResourcesRole: Writing – review & editing

Apinya Wongsodchuen: Role: ResourcesRole: Writing – review & editing

Sanya Intapan: Role: ResourcesRole: Writing – review & editing

Wiyada Chamchumroon: Role: ResourcesRole: Writing – review & editing

Mongkol Safoowong: Role: ResourcesRole: Writing – review & editing

Surin Peyachoknagul: Role: Writing – review & editing

Prateep Duengkae: Role: Funding acquisitionRole: InvestigationRole: Writing – review & editing

Kornsorn Srikulnath:

ORCID: http://orcid.org/0000-0002-5985-7258

Role: ConceptualizationRole: Funding acquisitionRole: InvestigationRole: Project administrationRole: SupervisionRole: Writing – original draftRole: Writing – review & editing

Bi-Song Yue: Role: Editor

Journal

Journal ID (nlm-ta): PLoS One

Journal ID (iso-abbrev): PLoS ONE

Journal ID (publisher-id): plos

Journal ID (pmc): plosone

Title: PLoS ONE

Publisher: Public Library of Science (San Francisco, CA USA )

ISSN (Electronic): 1932-6203

Publication date (Electronic): 4 June 2020

Publication date Collection: 2020

Volume: 15

Issue: 6

Electronic Location Identifier: e0234064

Affiliations

[1 ] Laboratory of Animal Cytogenetics and Comparative Genomics (ACCG), Department of Genetics, Faculty of Science, Kasetsart University, Chatuchak, Bangkok, Thailand

[2 ] Special Research Unit for Wildlife Genomics (SRUWG), Department of Forest Biology, Faculty of Forestry, Kasetsart University, Chatuchak, Bangkok, Thailand

[3 ] Department of Fishery Biology, Faculty of Fisheries, Kasetsart University, Bangkok, Thailand

[4 ] Deparment of National Park, Wildlife and Plant Conservation, Ministry of Natural Resources and Environment, Bangkok, Thailand

[5 ] Center for Advanced Studies in Tropical Natural Resources, National Research University-Kasetsart University, Kasetsart University, Bangkok, Thailand (CASTNAR, NRU-KU, Thailand)

[6 ] Center of Excellence on Agricultural Biotechnology (AG-BIO/PERDO-CHE), Bangkok, Thailand

[7 ] Amphibian Research Center, Hiroshima University, Kagamiyama, Higashihiroshima, Japan

Sichuan University, CHINA

Author notes

Competing Interests: The authors have declared that no competing interests exist.

* E-mail: kornsorn.s@ 123456ku.ac.th

Author information

Kornsorn Srikulnath http://orcid.org/0000-0002-5985-7258

Article

Publisher ID: PONE-D-20-06771

DOI: 10.1371/journal.pone.0234064

PMC ID: 7272075

PubMed ID: 32497115

SO-VID: b95a0f2e-aa81-4971-a0c8-12b5ca495eaa

License:

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

History

Date received : 14 March 2020

Date accepted : 17 May 2020