Genetic Differentiation among Populations and Color Variants of Sea Cucumbers (Stichopus Japonicus) from Korea and China
<p>The Far Eastern sea cucumber, <i>Stichopus japonicus</i>, is a favored food in Eastern Asia, including Korea, Japan, and China. Aquaculture production of this species has increased because of recent declines in natural stocks and government-operated stock release programs are on...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Ivyspring International Publisher
2011-01-01
|
| Series: | International Journal of Biological Sciences |
| Online Access: | http://www.biolsci.org/v07p0323.htm |
| _version_ | 1828197013146042368 |
|---|---|
| author | Jung-Ha Kang, Yi-Kyong Kim, Mi-Jung Kim, Jung-Yeon Park, Chul-Min An, Bong-Seok Kim, Je-Cheon Jun, Sang-Kyu Kim |
| author_facet | Jung-Ha Kang, Yi-Kyong Kim, Mi-Jung Kim, Jung-Yeon Park, Chul-Min An, Bong-Seok Kim, Je-Cheon Jun, Sang-Kyu Kim |
| author_sort | Jung-Ha Kang, Yi-Kyong Kim, Mi-Jung Kim, Jung-Yeon Park, Chul-Min An, Bong-Seok Kim, Je-Cheon Jun, Sang-Kyu Kim |
| collection | DOAJ |
| description | <p>The Far Eastern sea cucumber, <i>Stichopus japonicus</i>, is a favored food in Eastern Asia, including Korea, Japan, and China. Aquaculture production of this species has increased because of recent declines in natural stocks and government-operated stock release programs are ongoing. Therefore, the analyses of genetic structure in wild and hatchery populations are necessary to maintain the genetic diversity of this valuable marine resource. In addition, given that sea cucumber color affects market price, with the rare, possibly reproductively isolated, red type being the most valuable, an understanding of the genetic structure and diversity in color variation of green and red types is necessary. We analyzed the genetic structure of wild and hatchery-produced green type <i>S. japonicus</i> from Korea and China, and wild red type from Korea using 9 microsatellite makers. The number of alleles per locus ranged from 11 to 29 across all populations. The mean allele numbers of the green types from Korea (10.6) and China (10.1) were similar, but differed slightly from that of the red type (9.1). Pairwise multilocus <i>F<sub>ST</sub></i> and genetic distance estimations showed no significant differences between the green types from Korea and China, whereas the differences between the green and red types were significant. This was clearly illustrated by a UPGMA dendrogram, in which the two close subclusters of green types were completely separated from the red type. In addition, the allele frequencies of the green and red types were significantly different. Assignment tests correctly assigned 100% (quality index 99.97%) of individuals to their original color types and demonstrated the feasibility of microsatellite analysis for discrimination between color types.</p> |
| first_indexed | 2024-04-12T10:13:15Z |
| format | Article |
| id | doaj.art-27796a7251af4f6f91e848d4484310be |
| institution | Directory Open Access Journal |
| issn | 1449-2288 |
| language | English |
| last_indexed | 2024-04-12T10:13:15Z |
| publishDate | 2011-01-01 |
| publisher | Ivyspring International Publisher |
| record_format | Article |
| series | International Journal of Biological Sciences |
| spelling | doaj.art-27796a7251af4f6f91e848d4484310be2022-12-22T03:37:16ZengIvyspring International PublisherInternational Journal of Biological Sciences1449-22882011-01-0173323332Genetic Differentiation among Populations and Color Variants of Sea Cucumbers (Stichopus Japonicus) from Korea and ChinaJung-Ha Kang, Yi-Kyong Kim, Mi-Jung Kim, Jung-Yeon Park, Chul-Min An, Bong-Seok Kim, Je-Cheon Jun, Sang-Kyu Kim<p>The Far Eastern sea cucumber, <i>Stichopus japonicus</i>, is a favored food in Eastern Asia, including Korea, Japan, and China. Aquaculture production of this species has increased because of recent declines in natural stocks and government-operated stock release programs are ongoing. Therefore, the analyses of genetic structure in wild and hatchery populations are necessary to maintain the genetic diversity of this valuable marine resource. In addition, given that sea cucumber color affects market price, with the rare, possibly reproductively isolated, red type being the most valuable, an understanding of the genetic structure and diversity in color variation of green and red types is necessary. We analyzed the genetic structure of wild and hatchery-produced green type <i>S. japonicus</i> from Korea and China, and wild red type from Korea using 9 microsatellite makers. The number of alleles per locus ranged from 11 to 29 across all populations. The mean allele numbers of the green types from Korea (10.6) and China (10.1) were similar, but differed slightly from that of the red type (9.1). Pairwise multilocus <i>F<sub>ST</sub></i> and genetic distance estimations showed no significant differences between the green types from Korea and China, whereas the differences between the green and red types were significant. This was clearly illustrated by a UPGMA dendrogram, in which the two close subclusters of green types were completely separated from the red type. In addition, the allele frequencies of the green and red types were significantly different. Assignment tests correctly assigned 100% (quality index 99.97%) of individuals to their original color types and demonstrated the feasibility of microsatellite analysis for discrimination between color types.</p>http://www.biolsci.org/v07p0323.htm |
| spellingShingle | Jung-Ha Kang, Yi-Kyong Kim, Mi-Jung Kim, Jung-Yeon Park, Chul-Min An, Bong-Seok Kim, Je-Cheon Jun, Sang-Kyu Kim Genetic Differentiation among Populations and Color Variants of Sea Cucumbers (Stichopus Japonicus) from Korea and China International Journal of Biological Sciences |
| title | Genetic Differentiation among Populations and Color Variants of Sea Cucumbers (Stichopus Japonicus) from Korea and China |
| title_full | Genetic Differentiation among Populations and Color Variants of Sea Cucumbers (Stichopus Japonicus) from Korea and China |
| title_fullStr | Genetic Differentiation among Populations and Color Variants of Sea Cucumbers (Stichopus Japonicus) from Korea and China |
| title_full_unstemmed | Genetic Differentiation among Populations and Color Variants of Sea Cucumbers (Stichopus Japonicus) from Korea and China |
| title_short | Genetic Differentiation among Populations and Color Variants of Sea Cucumbers (Stichopus Japonicus) from Korea and China |
| title_sort | genetic differentiation among populations and color variants of sea cucumbers stichopus japonicus from korea and china |
| url | http://www.biolsci.org/v07p0323.htm |
| work_keys_str_mv | AT junghakangyikyongkimmijungkimjungyeonparkchulminanbongseokkimjecheonjunsangkyukim geneticdifferentiationamongpopulationsandcolorvariantsofseacucumbersstichopusjaponicusfromkoreaandchina |