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An unexpected genetic diversity pattern and a complex demographic history of a rare medicinal herb, Chinese asparagus (Asparagus cochinchinensis) in Korea
- Source :
- Scientific Reports, Vol 9, Iss 1, Pp 1-13 (2019), Scientific Reports
- Publication Year :
- 2019
- Publisher :
- Nature Publishing Group, 2019.
-
Abstract
- Range-wide population studies of wide spread species are often associated with complex diversity patterns resulting from genetically divergent evolutionary significant units (ESUs). The compound evolutionary history creating such a pattern of diversity can be inferred through molecular analyses. Asparagus cochinchinensis, a medicinally important perennial herb, is in decline due to overharvesting in Korea. Eight A. cochinchinensis populations in Korea and three populations from neighboring countries (China, Japan and Taiwan) were examined using nine nuclear microsatellite loci and three chloroplast microsatellite loci to characterize molecular diversity patterns. The average within-population diversity was limited likely due to long-term bottlenecks observed in all eight populations. High pairwise FST values indicated that the populations have largely diverged, but the divergences were not correlated with geographic distances. Clustering analyses revealed a highly complex spatial structure pattern associated with two ESUs. Approximate Bayesian Computation (ABC) suggests that the two ESUs split about 21,000 BP were independently introduced to Korea approximately 1,800 years ago, and admixed in secondary contact zones. The two ESUs found in our study may have different habitat preferences and growth conditions, implying that the two genetically divergent groups should be considered not only for conservation and management but also for breeding programs in agricultural areas.
- Subjects :
- Genotype
Demographic history
Population
lcsh:Medicine
Article
Plant evolution
Republic of Korea
Genetic variation
Asparagus
education
lcsh:Science
Demography
education.field_of_study
Genetic diversity
Plants, Medicinal
Multidisciplinary
biology
Haplotype
lcsh:R
Genetic Variation
Bayes Theorem
biology.organism_classification
Genetics, Population
Haplotypes
Evolutionary biology
Molecular evolution
Microsatellite
lcsh:Q
Approximate Bayesian computation
Asparagus Plant
Microsatellite Repeats
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Volume :
- 9
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Scientific Reports
- Accession number :
- edsair.doi.dedup.....9df88bf6752ca98db8c346f92df39f1e