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Widespread hybridization in the introduced hog deer population of Victoria, Australia, and its implications for conservation

In Australia, many species have been introduced that have since undergone drastic declines in their native range. One species of note is the hog deer (Axis porcinus) which was introduced in the 1860s to Victoria, Australia, and has since become endangered in its native range throughout South‐East As...

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Autores principales: Hill, Erin, Linacre, Adrian, Toop, Simon, Murphy, Nicholas, Strugnell, Jan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6787866/
https://www.ncbi.nlm.nih.gov/pubmed/31624584
http://dx.doi.org/10.1002/ece3.5603
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author Hill, Erin
Linacre, Adrian
Toop, Simon
Murphy, Nicholas
Strugnell, Jan
author_facet Hill, Erin
Linacre, Adrian
Toop, Simon
Murphy, Nicholas
Strugnell, Jan
author_sort Hill, Erin
collection PubMed
description In Australia, many species have been introduced that have since undergone drastic declines in their native range. One species of note is the hog deer (Axis porcinus) which was introduced in the 1860s to Victoria, Australia, and has since become endangered in its native range throughout South‐East Asia. There is increased interest in using non‐native populations as a source for genetic rescue; however, considerations need to be made of the genetic suitability of the non‐native population. Three mitochondrial markers and two nuclear markers were sequenced to assess the genetic variation of the Victorian population of hog deer, which identified that the Victorian population has hybrid origins with the closely related chital (Axis axis), a species that is no longer present in the wild in Victoria. In addition, the mitochondrial D‐loop region within the Victorian hog deer is monomorphic, demonstrating that mitochondrial genetic diversity is very low within this population. This study is the first to report of long‐term persistence of hog deer and chital hybrids in a wild setting, and the continual survival of this population suggests that hybrids of these two species are fertile. Despite the newly discovered hybrid status in Victorian hog deer, this population may still be beneficial for future translocations within the native range. However, more in‐depth analysis of genetic diversity within the Victorian hog deer population and investigation of hybridization rates within the native range are necessary before translocations are attempted.
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spelling pubmed-67878662019-10-17 Widespread hybridization in the introduced hog deer population of Victoria, Australia, and its implications for conservation Hill, Erin Linacre, Adrian Toop, Simon Murphy, Nicholas Strugnell, Jan Ecol Evol Original Research In Australia, many species have been introduced that have since undergone drastic declines in their native range. One species of note is the hog deer (Axis porcinus) which was introduced in the 1860s to Victoria, Australia, and has since become endangered in its native range throughout South‐East Asia. There is increased interest in using non‐native populations as a source for genetic rescue; however, considerations need to be made of the genetic suitability of the non‐native population. Three mitochondrial markers and two nuclear markers were sequenced to assess the genetic variation of the Victorian population of hog deer, which identified that the Victorian population has hybrid origins with the closely related chital (Axis axis), a species that is no longer present in the wild in Victoria. In addition, the mitochondrial D‐loop region within the Victorian hog deer is monomorphic, demonstrating that mitochondrial genetic diversity is very low within this population. This study is the first to report of long‐term persistence of hog deer and chital hybrids in a wild setting, and the continual survival of this population suggests that hybrids of these two species are fertile. Despite the newly discovered hybrid status in Victorian hog deer, this population may still be beneficial for future translocations within the native range. However, more in‐depth analysis of genetic diversity within the Victorian hog deer population and investigation of hybridization rates within the native range are necessary before translocations are attempted. John Wiley and Sons Inc. 2019-09-04 /pmc/articles/PMC6787866/ /pubmed/31624584 http://dx.doi.org/10.1002/ece3.5603 Text en © 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Hill, Erin
Linacre, Adrian
Toop, Simon
Murphy, Nicholas
Strugnell, Jan
Widespread hybridization in the introduced hog deer population of Victoria, Australia, and its implications for conservation
title Widespread hybridization in the introduced hog deer population of Victoria, Australia, and its implications for conservation
title_full Widespread hybridization in the introduced hog deer population of Victoria, Australia, and its implications for conservation
title_fullStr Widespread hybridization in the introduced hog deer population of Victoria, Australia, and its implications for conservation
title_full_unstemmed Widespread hybridization in the introduced hog deer population of Victoria, Australia, and its implications for conservation
title_short Widespread hybridization in the introduced hog deer population of Victoria, Australia, and its implications for conservation
title_sort widespread hybridization in the introduced hog deer population of victoria, australia, and its implications for conservation
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6787866/
https://www.ncbi.nlm.nih.gov/pubmed/31624584
http://dx.doi.org/10.1002/ece3.5603
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