‘Samkwang1’, a Medium Maturing, Multiple Disease Resistant, and High-quality Rice

Lee, Jeong-Heui; Won, Yong-Jae; Cho, Young‐Chan; Lee, Jeom-Ho; Yang, Chao; Kim, Myeong-Ki; Ahn, Eok-Keun; Suh, Jung-Pil; Lee, Sang-Bok; Jeon, Yong-Hee; Sung, Yeol-Kyu; Jeong, Eung-Gi; Ha, Woon-Goo; Chang, Jae-Ki; Jung, Kyungsook; Yoon, Minjoong; Kang, Kook Hee; Park, Hyang-Mi; Roh, Jee Hoon; Kim, and Bo-Kyeong

doi:10.9787/kjbs.2018.50.4.490

Cited by 4 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, rice varieties Samgwang [ 24 ] and Seolgang [ 11 ] were used as parents for developing a backcross population, and Koshihikari and Keunun were used as check varieties. They were cultivated and harvested according to a standard cultivation method of the Rural Development Administration (RDA) in Korea [ 25 ] in an experimental paddy field at Chungbuk National University in 2019–2021.…”

Section: Methodsmentioning

confidence: 99%

Marker-Assisted Backcrossing (MABc) to Improve Eating Quality with Thin Seed Coat and Aleurone Layer of Non-Glutinous Japonica Variety in Rice

Kim

et al. 2022

Genes

View full text Add to dashboard Cite

Brown rice is composed of rice bran, pericarp, seed coat, and aleurone layers, and the rice bran layer contains a large number of substances useful for the human body, such as dietary fiber, α-tocopherol, α-tocotrienol, and vitamins. However, more than 90% of these substances are removed when polished, and white rice has the disadvantage of losing food-related ingredients, such as umami-related amino acids, when compared to the unpolished group. In this study, we tried to develop new breeding lines with a thinner seed coat and aleurone layer to provide high eating quality with softer chewing characteristics and processability in rice grain. We detected an SNP for foreground selection for the backcross population by comparing genome sequences between Samgwang and Seolgaeng and developed high eating quality brown rice breeding lines by applying marker-assisted backcrossing (MABC) breeding programs to backcross populations between Samgwang and Seolgaeng using KASP markers. SNP markers for foreground selection were identified to improve eating and processability through SNP mapping of Samgwang and Seolgaeng with SSIIa as a target gene in this study. Line selection according to genotype of KASP markers was successful in BC1F1 and BC2F1 generations, with the recurrent parent genome recovery ratio ranging from 91.22% to 98.65%. In BC2F1 seeds of the selected lines, thickness of the aleurone layer was found to range from 13.82 to 21.67 μm, which is much thinner than the 30.91 μm of the wild type, suggesting that selection by MABc could be used as an additional breeding material for the development of highly processed rice varieties. These lines will be useful to develop new brown rice varieties with softer chewing characteristics and processability in rice grain.

show abstract

Section: Methodsmentioning

confidence: 99%

Marker-Assisted Backcrossing (MABc) to Improve Eating Quality with Thin Seed Coat and Aleurone Layer of Non-Glutinous Japonica Variety in Rice

Kim

et al. 2022

Genes

View full text Add to dashboard Cite

show abstract

“…Two Korean rice varieties were used, Samgwang [ 54 ] and Milkyqueen [ 55 ], for developing a backcross population, and two varieties, Koshihikari and Baegjinju, were used as check varieties. They were cultivated and harvested according to the standard cultivation method of the Rural Development Administration (RDA) in Korea [ 56 ] in an experimental paddy field at Chungbuk National University in 2019–2020.…”

Section: Methodsmentioning

confidence: 99%

Breeding of High Cooking and Eating Quality in Rice by Marker-Assisted Backcrossing (MABc) Using KASP Markers

Kim

Yang

et al. 2021

Plants

View full text Add to dashboard Cite

The primary goals of rice breeding programs are grain quality and yield potential improvement. With the high demand for rice varieties of premium cooking and eating quality, we developed low-amylose content breeding lines crossed with Samgwang and Milkyqueen through the marker-assisted backcross (MABc) breeding program. Trait markers of the SSIIIa gene referring to low-amylose content were identified through an SNP mapping activity, and the markers were applied to select favorable lines for a foreground selection. To rapidly recover the genetic background of Samgwang (recurrent parent genome, RPG), 386 genome-wide markers were used to select BC1F1 and BC2F1 individuals. Seven BC2F1 lines with targeted traits were selected, and the genetic background recovery range varied within 97.4–99.1% of RPG. The amylose content of the selected BC2F2 grains ranged from 12.4–16.8%. We demonstrated the MABc using a trait and genome-wide markers, allowing us to efficiently select lines of a target trait and reduce the breeding cycle effectively. In addition, the BC2F2 lines confirmed by molecular markers in this study can be utilized as parental lines for subsequent breeding programs of high-quality rice for cooking and eating.

show abstract

Oxidative stability of rice flour during storage under thermal oxidation and light irradiation

Oh,

Lee,

Kwak

et al. 2024

Food Sci Biotechnol

View full text Add to dashboard Cite

‘Samkwang1’, a Medium Maturing, Multiple Disease Resistant, and High-quality Rice

Cited by 4 publications

References 1 publication

Marker-Assisted Backcrossing (MABc) to Improve Eating Quality with Thin Seed Coat and Aleurone Layer of Non-Glutinous Japonica Variety in Rice

Marker-Assisted Backcrossing (MABc) to Improve Eating Quality with Thin Seed Coat and Aleurone Layer of Non-Glutinous Japonica Variety in Rice

Breeding of High Cooking and Eating Quality in Rice by Marker-Assisted Backcrossing (MABc) Using KASP Markers

Oxidative stability of rice flour during storage under thermal oxidation and light irradiation

Contact Info

Product

Resources

About