Comparison of genetic variation between northern and southern populations of Lilium cernuum (Liliaceae): Implications for Pleistocene refugia

Autor: Gang Uk Suh, Son Hai Vu, Sungwon Son, Hoa Thi Quynh Le, Myong Gi Chung, Sonia Herrando-Moraira, Mi Yoon Chung, Jordi López-Pujol
Přispěvatelé: National Research Foundation of Korea, Ministry of Education and Human Resource Development (South Korea)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
0106 biological sciences
0301 basic medicine
Population genetics
lcsh:Medicine
01 natural sciences
Geographical Locations
Refugium (population biology)
Glacial period
lcsh:Science
Flowering Plants
education.field_of_study
Multidisciplinary
biology
Ecology
Geography
Fossils
Eukaryota
Last Glacial Maximum
Plants
Phylogeography
Lilium cernuum
Biogeography
Algorithms
Research Article
China
Asia
Ecological Metrics
Lily
Population
010603 evolutionary biology
03 medical and health sciences
South Korea
Genetic variation
Genetics
Liliaceae
education
Genetic diversity
Evolutionary Biology
Population Biology
Ecology and Environmental Sciences
lcsh:R
Organisms
Biology and Life Sciences
Paleontology
Genetic Variation
Species Diversity
biology.organism_classification
030104 developmental biology
People and Places
Earth Sciences
Genetic Polymorphism
lcsh:Q
Paleogenetics
Population Genetics
Zdroj: PLoS ONE, Vol 13, Iss 1, p e0190520 (2018)
Digital.CSIC. Repositorio Institucional del CSIC
instname
PLoS ONE
ISSN: 1932-6203
Popis: The so-called “Baekdudaegan” (BDDG), a mountain range that stretches along the Korean Peninsula, has been recently proposed as a major “southern” glacial refugium for boreal or temperate plant species based on palaeoecological and, especially, genetic data. Genetic studies comparing genetic variation between population occurring on the BDDG and more northern ones (i.e. in NE China and/or in Russian Far East) are, however, still too few to draw firm conclusions on the role of the BDDG as a refugium and a source for possible northward post-glacial recolonizations. In order to fill this gap, we selected a boreal/temperate herb, Lilium cernuum, and compared levels of allozyme-based genetic diversity of five populations from NE China with five populations from South Korea (home of its hypothesized refuge areas). As a complementary tool, we used the maximum entropy algorithm implemented in MaxEnt to infer the species’ potential distribution for the present time, which was projected to different past climate scenarios for the Last Glacial Maximum (LGM). Permutation tests revealed that Korean populations harbored significantly higher levels of within-population genetic variation than those from NE China (expected heterozygosity = 0.173 vs. 0.095, respectively). Our results suggest that the lowered levels of genetic diversity in NE Chinese populations might be due to founder effects associated with post-glacial migration from southern regions. Congruent with genetic data, past distribution models showed higher probability of occurrence in southern ranges than in northern ones during the LGM. In addition, a positive correlation was detected between the expected heterozygosity and environmental LGM suitability. From a conservation perspective, our results further suggest that the southern populations in South Korea may be particularly worthy of protection.
This study was carried out as part of “Infrastructure for Conservation and Restoration of Rare and Endemic Plants in Korea National Arboretum” that supported to M.G.C. in 2016. Also, this study supported in part by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education [NRF-2017R1A2B4012215] to M.G.C. (https://ernd.nrf.re.kr/websquare/websquare.do?2xPath=/wsq/sl/slc/SlcRsltCfmRM.xml).
Databáze: OpenAIRE
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