All Populations Matter: Conservation Genomics of Australia’s Iconic Purple Wattle, <i<Acacia purpureopetala</i<

Maximising genetic diversity in conservation efforts can help to increase the chances of survival of a species amidst the turbulence of the anthropogenic age. Here, we define the distribution and extent of genomic diversity across the range of the iconic but threatened <i<Acacia purpureopetala...
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Gespeichert in:

Autor*in:	Marlien M. van der Merwe [verfasserIn] Jia-Yee S. Yap [verfasserIn] Peter D. Wilson [verfasserIn] Helen T. Murphy [verfasserIn] Andrew Ford [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	low heterozygosity SNP markers fragmentation mixed mating system genetic drift optimum germplasm conservation collection

Übergeordnetes Werk:	In: Diversity - MDPI AG, 2009, 13(2021), 4, p 139
Übergeordnetes Werk:	volume:13 ; year:2021 ; number:4, p 139

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/d13040139

Katalog-ID:	DOAJ03037104X

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author	Marlien M. van der Merwe
spellingShingle	Marlien M. van der Merwe misc QH301-705.5 misc low heterozygosity misc SNP markers misc fragmentation misc mixed mating system misc genetic drift misc optimum germplasm conservation collection misc Biology (General) All Populations Matter: Conservation Genomics of Australia’s Iconic Purple Wattle, <i<Acacia purpureopetala</i<
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topic_title	QH301-705.5 All Populations Matter: Conservation Genomics of Australia’s Iconic Purple Wattle, <i<Acacia purpureopetala</i< low heterozygosity SNP markers fragmentation mixed mating system genetic drift optimum germplasm conservation collection
topic	misc QH301-705.5 misc low heterozygosity misc SNP markers misc fragmentation misc mixed mating system misc genetic drift misc optimum germplasm conservation collection misc Biology (General)
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title	All Populations Matter: Conservation Genomics of Australia’s Iconic Purple Wattle, <i<Acacia purpureopetala</i<
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title_sort	all populations matter: conservation genomics of australia’s iconic purple wattle, <i<acacia purpureopetala</i<
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title_auth	All Populations Matter: Conservation Genomics of Australia’s Iconic Purple Wattle, <i<Acacia purpureopetala</i<
abstract	Maximising genetic diversity in conservation efforts can help to increase the chances of survival of a species amidst the turbulence of the anthropogenic age. Here, we define the distribution and extent of genomic diversity across the range of the iconic but threatened <i<Acacia purpureopetala</i<, a beautiful sprawling shrub with mauve flowers, restricted to a few disjunct populations in far north Queensland, Australia. Seed production is poor and germination sporadic, but the species occurs in abundance at some field sites. While several thousands of SNP markers were recovered, comparable to other <i<Acacia</i< species, very low levels of heterozygosity and allelic variation suggested inbreeding. Limited dispersal most likely contributed towards the high levels of divergence amongst field sites and, using a generalised dissimilarity modelling framework amongst environmental, spatial and floristic data, spatial distance was found to be the strongest factor explaining the current distribution of genetic diversity. We illustrate how population genomic data can be utilised to design a collecting strategy for a germplasm conservation collection that optimises genetic diversity. For this species, inclusion of all field sites will capture maximum genetic diversity for both in situ and ex situ conservation. Assisted cross pollination, within and between field sites and genetically structured groups, is recommended to enhance heterozygosity particularly at the most disjunct sites and further fragmentation should be discouraged to avoid loss of genetic connectivity.
abstractGer	Maximising genetic diversity in conservation efforts can help to increase the chances of survival of a species amidst the turbulence of the anthropogenic age. Here, we define the distribution and extent of genomic diversity across the range of the iconic but threatened <i<Acacia purpureopetala</i<, a beautiful sprawling shrub with mauve flowers, restricted to a few disjunct populations in far north Queensland, Australia. Seed production is poor and germination sporadic, but the species occurs in abundance at some field sites. While several thousands of SNP markers were recovered, comparable to other <i<Acacia</i< species, very low levels of heterozygosity and allelic variation suggested inbreeding. Limited dispersal most likely contributed towards the high levels of divergence amongst field sites and, using a generalised dissimilarity modelling framework amongst environmental, spatial and floristic data, spatial distance was found to be the strongest factor explaining the current distribution of genetic diversity. We illustrate how population genomic data can be utilised to design a collecting strategy for a germplasm conservation collection that optimises genetic diversity. For this species, inclusion of all field sites will capture maximum genetic diversity for both in situ and ex situ conservation. Assisted cross pollination, within and between field sites and genetically structured groups, is recommended to enhance heterozygosity particularly at the most disjunct sites and further fragmentation should be discouraged to avoid loss of genetic connectivity.
abstract_unstemmed	Maximising genetic diversity in conservation efforts can help to increase the chances of survival of a species amidst the turbulence of the anthropogenic age. Here, we define the distribution and extent of genomic diversity across the range of the iconic but threatened <i<Acacia purpureopetala</i<, a beautiful sprawling shrub with mauve flowers, restricted to a few disjunct populations in far north Queensland, Australia. Seed production is poor and germination sporadic, but the species occurs in abundance at some field sites. While several thousands of SNP markers were recovered, comparable to other <i<Acacia</i< species, very low levels of heterozygosity and allelic variation suggested inbreeding. Limited dispersal most likely contributed towards the high levels of divergence amongst field sites and, using a generalised dissimilarity modelling framework amongst environmental, spatial and floristic data, spatial distance was found to be the strongest factor explaining the current distribution of genetic diversity. We illustrate how population genomic data can be utilised to design a collecting strategy for a germplasm conservation collection that optimises genetic diversity. For this species, inclusion of all field sites will capture maximum genetic diversity for both in situ and ex situ conservation. Assisted cross pollination, within and between field sites and genetically structured groups, is recommended to enhance heterozygosity particularly at the most disjunct sites and further fragmentation should be discouraged to avoid loss of genetic connectivity.
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title_short	All Populations Matter: Conservation Genomics of Australia’s Iconic Purple Wattle, <i<Acacia purpureopetala</i<
url	https://doi.org/10.3390/d13040139 https://doaj.org/article/c217bf69faaa4a0681abaf664c1655dd https://www.mdpi.com/1424-2818/13/4/139 https://doaj.org/toc/1424-2818
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