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Article

Recently Naturalized Paraserianthes lophantha subsp. lophantha Displays Contrasting Genetic Diversity and Climate Relationships Compared to Native Populations

1
School of Biosciences, University of Melbourne, Parkville 3010, Australia
2
Royal Botanic Gardens Victoria, Private Bag 2000, South Yarra 3141, Australia
3
Queensland Herbarium, DES, Brisbane Botanic Gardens, Mt Coot-tha Rd, Toowong 4066, Australia
4
Hawkesbury Institute for the Environment, Western Sydney University, Penrith 2750, Australia
*
Author to whom correspondence should be addressed.
Diversity 2020, 12(11), 422; https://doi.org/10.3390/d12110422
Received: 14 October 2020 / Revised: 6 November 2020 / Accepted: 9 November 2020 / Published: 10 November 2020
(This article belongs to the Special Issue Evolutionary Ecology and Conservation of Native Plants)
Paraseriantheslophantha subsp. lophantha (Leguminosae) is native to southwestern Australia, but has become naturalized in eastern Australia and in countries around the world. Previous studies have investigated the introduction sources for P. lophantha subsp. lophantha overseas, but here, we expand on the knowledge of genetic patterns in its native and naturalized range in Australia. Genetic patterns were examined using nine nuclear microsatellite loci and three chloroplast DNA markers. The native populations exhibited phylogeographic patterns, including north-south differentiation, and a genetic signal related to temperature gradients. Naturalized Australian populations displayed lower overall genetic variation and no phylogeographic patterns. Several naturalized populations separated by large distances (350–650 km) shared multi-locus genotypes, supporting the notion of a shared source of germplasm and possible inbreeding due to human-mediated introductions from a limited number of individuals and/or source populations within the native range. We advocate that management strategies are tailored to the distinct conservation aims underpinning conservation in native or naturalized populations. Within the native distribution, management should have a long-term aim to replicate historical evolutionary processes, whereas in naturalized populations, immediate actions may be required to reduce the abundance of P. lophantha subsp. lophantha and minimize its invasive impact on the recipient vegetation. View Full-Text
Keywords: population genetics; naturalization; range expansion; Leguminosae population genetics; naturalization; range expansion; Leguminosae
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MDPI and ACS Style

Brown, G.K.; James, E.A.; Simmons, C.L.; Ahrens, C.W. Recently Naturalized Paraserianthes lophantha subsp. lophantha Displays Contrasting Genetic Diversity and Climate Relationships Compared to Native Populations. Diversity 2020, 12, 422. https://doi.org/10.3390/d12110422

AMA Style

Brown GK, James EA, Simmons CL, Ahrens CW. Recently Naturalized Paraserianthes lophantha subsp. lophantha Displays Contrasting Genetic Diversity and Climate Relationships Compared to Native Populations. Diversity. 2020; 12(11):422. https://doi.org/10.3390/d12110422

Chicago/Turabian Style

Brown, Gillian K., Elizabeth A. James, Catherine L. Simmons, and Collin W. Ahrens 2020. "Recently Naturalized Paraserianthes lophantha subsp. lophantha Displays Contrasting Genetic Diversity and Climate Relationships Compared to Native Populations" Diversity 12, no. 11: 422. https://doi.org/10.3390/d12110422

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