All Newsletters
[Newsletter No.35] Genetic Map of the Natural Monument 'Fatsia japonica' of Bijindo Island, Tongyeong Completed
CBD-CHM Newsletter Vol. 35
Genetic Map of the Natural Monument 'Fatsia japonica' of Bijindo Island, Tongyeong Completed
The Honam National Institute of Biological Resources (HNIBR) of the Ministry of Climate, Energy and Environment (MCEE) decoded the genome of Fatsia japonica designated as a Natural Monument and completed its genetic map1) to support habitat conservation on Bijindo Island, Tongyeong, Gyeongsangnam-do.
Fatsia japonica is a plant native to island regions along the southern coast of Korea, and the population on Bijindo Island in Tongyeong is protected as a Natural Monument. This study was conducted to establish science-based conservation measures by utilizing genomic information on native plants inhabiting island environments.
Using advanced genome analysis technologies, the research team completed a comprehensive genetic map covering the entire genetic information of Fatsia japonica . The decoded genome consists of 1.28 billion base pairs, and a total of 64,844 genes were identified across 24 chromosomes. This genetic map provides a foundation for understanding the evolutionary history of island-native Fatsia japonica , its adaptation to island environments, and its level of genetic diversity2).
In particular, the team focused on protecting the unique genetic diversity preserved in the population, which has adapted to the island environment over a long period. Through this analysis, candidate genes regulating pollen production were identified to prevent genetic contamination that could result from gene flow from planted cultivated species into the native population.
By applying these genes to control pollen flow of planted Fatsia japonica, it is expected that the influx of genes from mainland ornamental shrub which has lower genetic diversity into the genetically diverse island population can be effectively prevented. This study is significant in that it establishes a scientific basis for conserving the genetic diversity of native Fatsia japonica populations through genomic information.
Going forward, the HNIBR plans to conduct comparative analysis of genetic diversity among the habitats on island regions based on the completed genetic map and to develop scientific conservation strategies to preserve the genetic uniqueness of native plant populations.
A senior researcher from the Division of Genetic Resources of HNIBR stated, "The construction of this genetic map is a meaningful achievement that integrates advanced scientific technologies into the conservation of island-native plants," adding, "We will continue to strengthen scientific conservation frameworks for island-native biological resources through genetic maps."
1)
Genome and genetic map: The genome refers to genetic information of an organism. A genetic map is created by systematically decoding and arranging genomic information.
2)
Genetic diversity: The degree of genetic variation among populations within the same species. Higher genetic diversity enhances adaptability to environmental changes and increases the likelihood of species survival.
