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  1. Yezin Agricultural University
  2. Department of Agricultural Biotechnology

Analysis of Population Structure Revealed Apparent Genetic Disturbance in Korea Cymbidium Collection

http://hdl.handle.net/20.500.12678/0000000239
http://hdl.handle.net/20.500.12678/0000000239
7024e778-3afa-4c86-9638-bf4d0054f05f
4b01683d-b653-48ec-99e3-ba96a14e05e7
None
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Population Population structure of Korean Cymbidium (Moe et al 2012).jpg (415 Kb)
Publication type
Journal article
Upload type
Publication
Title
Title Analysis of Population Structure Revealed Apparent Genetic Disturbance in Korea Cymbidium Collection
Language en
Publication date 2012
Authors
Moe Kyaw Thu
Yong-Jin Park
Description
The Oriental genus Cymbidium contains some of the most important and popular species of ornamental
orchids in Korea. Genetic characterization of Cymbidium is vital for its conservation and management,
as well as for understanding the genetic relationships among accessions. Among 100 tested accessions,
226 alleles were detected with an average of 16.1 alleles per simple sequence repeat locus; the number
of alleles ranged from 28 for the KNU-CC-32 locus to 7 for KNU-CC-25. The allele size ranged from 103
to 380 bp. Thirteen loci were deviated from Hardy–Weinberg equilibrium, and showed highly significant
linkage disequilibrium (P < 0.01). These results indicate that influencing disturbance in the Cymbidium
population, such as natural selection and/or human intervention (i.e., plant breeding), are taking place
among the species in Korea. The values for heterozygosity ranged from 0.000 to 0.969, with a mean value of
0.402. The average gene diversity and polymorphism information content values were 0.679 and 0.656,
respectively, and ranged from 0.223 (KNU-CC-52) to 0.936 (KNU-CC-32) and from 0.219 (KNU-CC-52)
to 0.933 (KNU-CC-32), respectively. All Cymbidium accessions were put into three main groups, and no
evidence of mixed population ancestry was observed among the three populations identified. Cymbidium
sinensis is not as well distributed and abundant as C. goeringii in Korea. Cymbidium goeringii is endemic
in Korea. The genetic diversity in Cymbidium is not related to geographical area, which indicates that the
species are randomly distributed in Korea. Our finding helps explain the genetic relationships and the
population structure of Cymbidium species in Korea.
Keywords
Cymbidium
Identifier https://yauor-yau.archive.knowledgearc.net/handle/123456789/77
Journal articles
Scientia Horticulturae
134
Conference papaers
Books/reports/chapters
Thesis/dissertations
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