Browsing by Author "Han, Gyung Deok"
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Article Case Study: Things To Be Considered for High-Throughput Phenotyping in Genomic Studies(Springer, 2023) Kwon, Soon-Hwa; Ku, Ki Bon; Tomar, Vipin; Yildiz, Mehtap; Kang, Seok-Beom; Park, Yosup; Han, Gyung DeokHigh-throughput phenotyping (HTP) enables breeders and researchers to have massive data sets accurately and objectively. It could be applied to plant breeding for screening stress tolerance and biodiversity among wild species in the gene bank, which can be a breakthrough in the phenotyping bottleneck. However, there are many factors to be considered. Thus, this study is designed to show an example of phenotyping traits using yield and image data in citrus using the Normalized Difference Vegetation Index (NDVI) and Red, Green, and Blue (RGB) images. The results using image analysis showed that R2 in linear regression ranged from 0.79 to 0.91, depending on the methods which were used in the current study. However, the results from NDVI were proven to be false, unlike those of RGB images. This means that researchers and breeders must be very cautious when dealing with new technologies to avoid being misled to the wrong conclusion when they try to associate this data with genomic data.Article Diversity Study of Common Buckwheat Germplasm in the Republic of Korea Using Gbs(Springer, 2022) Park, Ji Eun; Kang, Yuna; Han, Gyung Deok; Yildiz, Mehtap; Kim, Seong-Hoon; Kim, Changsoo; Chung, Yong SukCommon buckwheat is widely cultivated worldwide. Due to its bioactive compounds, there are vigorous studies on protein and metabolism. However, there are not many studies using genetic approaches. Especially researches on genetic diversity in common buckwheat germplasm are rare, although it is crucial for breeding better cultivars. Thus, the current study examined the genetic diversity of the randomly selected common buckwheat germplasm found in the Republic of Korea. The results show that there are not many genetic variances among those wild common buckwheat germplasm that were used in the current study. Although it needs to test more number of germplasm, it seems that more diversity is required to be able to breed cultivars for the future.