Most-cited are based on citations from 2024 ~ 2026.
‘Chamdongjin’ is a near-isogenic line with enhanced disease resistance compared to ‘Sindongjin,’ a mega-cultivar in Korea. ‘Younghojinmi’ is the rice cultivar with the highest taste quality among the premium cultivars. This study conducted quantitative trait loci (QTL) analysis on yield-related traits using the recombinant inbred lines derived from a cross between ‘Chamdongjin’ and ‘Younghojinmi’ to elucidate genetic interaction. We utilized KASP markers and a target-capture sequencing SNP genotyping platform to address the insufficient genetic diversity of the population using Korean
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‘Chamdongjin’ is a rice cultivar with a distinctively large grain size and good palatability, similar to ‘Sindongjin,’ which is a mega-cultivar in Korea. ‘Younghojinmi’ is a rice cultivar known for having the highest taste value among premium quality cultivars. In this study, we conducted quantitative trait loci (QTL) analysis of quality-related traits using recombinant inbred lines (RILs) derived from a cross between ‘Chamdongjin’ and ‘Younghojinmi’ to elucidate their genetic interactions. We analyzed 20 traits, including protein content, amylose content, glossiness of cooked rice, 7 traits related to grain appearance, 6 traits related to pasting properties, and 4 traits related to texture. Quality-related QTL were primarily detected on chromosome 3. In particular,
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Image-based digitalization of germplasm stock holds significant promise for accelerating plant breeding and crop improvement. This technology facilitates efficient germplasm characterization, evaluation, and management through the capture and analysis of visual phenotypes. However, widespread adoption is hindered by challenges that include image quality control, data analysis complexity, and phenotypic representation limitations. This study investigated these constraints and proposed strategies to address them. By managing technical challenges, refining phenotypic data extraction, and developing robust data analysis pipelines, researchers can fully leverage image-based digitalization to enhance germplasm utilization and contribute to sustainable agriculture.
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Wheat, in conjunction with rice and maize, constitutes one of the three most significant staple crops worldwide, sustaining over 40% of the global population. In Korea, the annual per capita wheat consumption exceeds 30 kg, totaling approximately 4 million tons nationwide. However, more than 95% of this demand is met through imports, resulting in a meager self-sufficiency rate of approximately 0.7%, raising concerns regarding supply stability and price fluctuations. Enhancing wheat self-sufficiency in Korea requires addressing yield reductions caused by abiotic stressors, including elevated temperatures, drought, cold damage and pre-harvest sprouting induced by climate change, as well as biotic stressors such as Fusarium head blight. The development of high-quality wheat varieties with superior processing characteristics that satisfy consumer demands is crucial. This study provides critical insights for future research on the development of novel wheat cultivars in Korea. It reviews the current state of wheat cultivation and production, environmental and biological factors affecting growth, compositional elements influencing quality, domestic cultivars developed through conventional crossbreeding currently in commercial distribution, and contemporary breeding trends, with particular emphasis on novel breeding technologies, such as biotechnology.
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Climate change caused by global warming, is predicted to have severe consequences for ecosystems and economic sectors. In the agricultural industry, it is predicted that there will be decreased crop yields resulting from shifting planting seasons, as well as higher temperature and water stress which significantly reduce crop productivity. Kimchi cabbage, a cold-loving plant, is particularly vulnerable to high-temperature stress which can lead to stunted growth, increased susceptibility to pests like soft rot, reduced yield, and lower quality that will negatively impact the Kimchi cabbage market. Kimchi cabbage can be cultivated in highland regions with low summer temperatures and reduced pest occurrence, but rising temperatures and water stress are expected to increase pest pressure, resulting in a rapid decrease in the potential cultivation area of Kimchi cabbage. Currently, research is being conducted around the world to identify physiological mechanisms of heat tolerance at the molecular level, selection of heat-tolerant material, and studies on cellular responses of plants under high-temperature conditions. Despite numerous studies on physiological and biochemical responses of
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The rice cultivar ‘Chamdongjin’ exhibits a distinctively large grain size and excellent eating quality but is weak with regard to pre-harvest sprouting (PHS), requiring genetic improvement. In contrast, the premium-quality rice cultivar ‘Younghojinmi’ exhibits strong PHS tolerance. This study conducted quantitative trait loci (QTL) analysis on PHS and low-temperature germinability (LTG) using recombinant inbred lines derived from a cross between ‘Chamdongjin’ and ‘Younghojinmi’ to elucidate the genetic factors. Thus, an elite line with improved PHS tolerance was selected. QTL analysis revealed that
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Improving nitrogen use efficiency (NUE) is essential for sustainable wheat production, given the global demand for high-yielding and environmentally resilient crop varieties. NUE is a complex trait governed by multiple genetic, physiological, and environmental factors. This review synthesizes recent advances in the genetic dissection of NUE in wheat, focusing on quantitative trait loci (QTL) mapping, genome-wide association studies (GWAS), and transcriptome analyses. Furthermore, novel approaches such as protein turnover quantification, epigenetic regulation, NIR-based quality prediction, and genomic selection optimization are discussed as emerging strategies to enhance NUE. Key genes identified include nitrate transporters (NRT1, NRT2), nitrogen assimilation enzymes (GS, GOGAT), transcription factors (
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Barley (
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‘Boramchan’ is a high-yielding, mid-late maturing temperate
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Rose of Sharon (
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‘Yuryeo’ is a rapeseed cultivar suitable for rapeseed oil production which was developed by the Bioenergy Crop Research Institute, NICS, RDA, in 2018. ‘Yuryeo,’ characterized by its high oleic acid content and resistance to sclerotinia stem rot and lodging, was developed through gamma-ray irradiation of ‘Hallayuchae’ seeds followed by pedigree breeding. Regional yield trials for ‘Yuryeo’ were conducted in three regions from 2016 to 2019. As a result, the flowering period of ‘Yuryeo’ was observed to be two days later than that of ‘Hallayuchae,’ but both had a similar maturation period. In terms of yield, there was no significant difference between ‘Yuryeo’ and ‘Hallayuchae,’ but ‘Yuryeo’ showed higher resistance to sclerotinia stem rot and lodge. Notably, the oleic acid in ‘Yuryeo’ was 74.2%, marking a 10% increase over ‘Hallayuchae.’ With its enriched oleic acid content and reliable cultivation characteristics, ‘Yuryeo’ can enhance both rapeseed cultivation and the rapeseed oil industry (Registration No. 8753).
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In the present study, we conducted a detailed analysis of the genetic diversity and structural organization of 96 domestic Korean rice varieties (
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The composition of high-molecular-weight-glutenin subunits (HMW-GS) is a key determinant of wheat baking properties. These subunits are encoded by the
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The intermediate breeding material ‘JJ625LG’ was developed to diversify the grain shape characteristics of Korean
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‘Saebom’ is a new vegetable perilla (
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A comprehensive evaluation of 515 Korean wheat germplasms, including cultivars, experimental lines, and landraces, was conducted over 2 years under upland field conditions to characterize major agronomic and grain traits. Allelic variation at 13 key functional loci was assessed using Kompetitive Allele-Specific PCR (KASP) and PCR-based markers. The winter-type
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Genetically modified (GM) crops have been developed to enhance various agronomic traits and increase the production of functional compounds. In the present study, the major agronomic characteristics of protopanaxadiol (PPD)-enriched GM rice, which was developed by introducing dammarenediol-II synthase (
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Wheat is a fundamental staple crop worldwide, contributing significantly to global food security due to its versatility and nutritional value. However, gluten proteins, including gliadins and glutenins, have been implicated in various health problems, such as celiac disease, non-celiac gluten sensitivity, and wheat allergies. These disorders affect a wide variety of people globally, creating demand for wheat varieties that balance high-end-use quality with reduced immunogenic potential. This review examines the molecular and genetic mechanisms that regulate gluten protein synthesis, highlighting recent advances in genomic and mutagenic approaches aimed at modifying gluten proteins to enhance the health and quality traits of wheat. Technologies such as RNAi and CRISPR/Cas9 offer promising avenues for reducing wheat immunogenicity without compromising its functional properties in food production. This study also examines the challenges and prospects of utilizing these genetic tools to develop wheat varieties that achieve the dual objectives of enhanced health outcomes and high product quality.
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‘EePi No.1’, a new mid-ripening cultivar of chestnut (
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‘Saedeul’ is a saddle-patterned seed-coated soybean cultivar developed from a cross between ‘IT224183’ and ‘Daepung (IT214696)’ in 2010. The F1 and F2 generations were grown for 2 years, and promising lines were selected using the pedigree method from F3 to F5 generations. The preliminary yield trials (PYT) and advanced yield trials (AYT) were conducted during 2016-2017, followed by regional yield trials (RYT) across seven regions during 2018-2020. ‘Saedeul’ is a determinate cultivar, having oval-shaped leaflets, purple flowers, and saddle-patterned seeds. The flowering and maturing date were August 11 and October 28, respectively. Considering its quantitative characteristics in comparison to the ‘Cheongja3ho’ cultivar, ‘Saedeul’ has a smaller seed size (27.9 g/100 seeds) and shorter plant height, but a higher first pod height. ‘Saedeul’ showed greater tolerance to both lodging and pod shattering in the RYT field and indoor tests than ‘Cheongja3ho’. It demonstrated resistance to bacterial pustule in field tests but was susceptible to soybean mosaic virus (G6H strain) in inoculation tests. The mean yield of ‘Saedeul’ in the RYT was 261 kg/10a, exceeding that of ‘Cheongja3ho’. ‘Saedeul’ is expected to replace landraces due to its resistance to lodging and bacterial pustule. (Registration number: 9456)
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Wheat (
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The soybean cultivar, ‘Jangpung’, is adaptable for mechanized harvest with fewer branches and a higher first pod height. ‘Jangpung’ was developed through a pedigree method involving a cross between ‘Shingi’ and ‘SS03102-B-B-3S-21-4’ cultivars from 2010-2021. The promising line, ‘YS2243-B-B-35-1-1-1’, was selected and designated as ‘Milyang361’, whereafter it was tested in regional yield trials (RYT) for three years from 2019-2021. Its performance and stability were approved after the RYT and thereafter released as ‘Jangpung’. It has a determinate growth habit, purple flowers, grey pubescence, yellow seed coat, yellow hilum, spherical seed shape, and large seeds (28.2 g/100 seeds). ‘Jangpung’ is a late-maturing cultivar; its flowering and maturing dates were 9 August and 22 October, respectively. ‘Jangpung’ exhibited resistance to bacterial pustule and soybean mosaic virus, as well as tolerance to lodging and shattering resistance, as confirmed through genetic validation using the marker,
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Deep learning has gained considerable interest in agricultural breeding research. While advances in sequencing technologies have made genotypic data collection easier in genomic breeding, phenotypic data collection remains labor intensive and time consuming. Furthermore, as traditional phenotypic data collection relies heavily on manual processes, the results may vary based on the researcher’s skill and criteria. Thus, automated phenotypic data collection is essential for addressing these challenges. In this study, we aimed to develop a deep learning model using the YOLOv8 framework to measure the lengths of hypocotyls and roots in sprout vegetables such as mung bean, cowpea, and soybean. Our model automates the measurement process, accurately identifies the hypocotyl and root using Roboflow, and subsequently measures their lengths with high precision in various legume species. This approach addresses the challenges of extensive phenotypic data collection, which is essential for genetic breeding and agricultural improvement. Our deep learning model facilitates consistent and accurate data collection in large-scale studies by controlling variables influenced by the researcher’s skills and criteria. This reduces errors and enhances data reliability and accuracy, which are crucial for successful breeding practices and agricultural research.
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‘Seum’ is a black-seed coated soybean cultivar developed from crossing ‘IT21785’ and ‘Wonkwang (IT218557)’ in 2010. F1 and F2 populations were grown for 2 years and promising lines were selected by pedigree method from F3 to F5. The preliminary yield trial (PYT) and advanced yield trial (AYT) were conducted from 2016 to 2017, and regional yield trial (RYT) in 7 regions was conducted from 2018 to 2020. ‘Seum’ is determinate, has a lanceolate leaflet shape, purple flowers, green cotyledons, and black spherical seeds. Flowering and maturing dates were Aug. 4 and Oct. 21, respectively. ‘Seum’ has small seed size (11.4 g/100-seed) and shorter plant height than that of ‘Socheongja’. ‘Seum’ was more tolerant to lodging and pod shattering in regional field and indoor trials than that of ‘Socheongja’. ‘Seum’ was resistant to bacterial pustule during field tests and to soybean mosaic virus (G6H strain) during inoculation tests. The mean yield of ‘Seum’ in RYT was 292 kg/10a which was higher than that of ‘Socheongja’. ‘Seum’ is expected to rapidly replace the elite variety ‘Socheongja’ based on its lodging tolerance and high yield potential (Registration No. 9449).
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The rice cultivar ‘JJ644wx’ was developed to improve disease resistance and lodging tolerance of Korean
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In common wheat (
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In Asia, where climate change is increasing the damage caused by cold stress, it is crucial to cultivate varieties with enhanced cold tolerance. In this study, the Tongil variety ‘Hanareum2’ was crossed with the Japonica variety ‘Unkwang’ to improve plant growth ability at low temperatures during the seedling stage. This led to the development of 234 recombinant inbred line (RIL) populations, and a linkage map was constructed using 249 single nucleotide polymorphism (SNP) markers. The RIL populations were transplanted to the field one month earlier than the standard transplanting period, and plant height (PH), leaf number (LN), and dry weight (DW) were measured to identify quantitative trait loci (QTL) associated with plant growth ability at low temperatures during the seedling stage. QTLs related to cold tolerance, particularly those carrying the ‘Unkwang’ allele, were identified in the PH and DW traits. For PH, the QTLs
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‘Jinhyang’ is a fragrant pear bred in 2019. Field crossings to breed fragrant pears were conducted in 1984 at the Pear Research Center of the National Institute of Horticultural and Herbal Science. The maternal and paternal parents were ‘Okusankichi’ (IT254489) and ‘Hori’ (IT226291), respectively. The 84-16-5 line, which had a good fragrance, was first selected in 2007, and regional adaptation tests were conducted from 2011 to 2019 in five regions (Suwon, Chuncheon, Jinju, Yecheon, and Naju). The morphological characteristics of ‘Jinhyang’ include vigorous spreading tree form, brown-colored one-year-old shoot, elliptical leaf blade, round leaf tip, and white-colored flowers. The full bloom date was April 11, and the harvest date was in late September. The fruit of ‘Jinhyang’ weighs 439.9 g and has a soluble solid content of 13.0 °Brix, with a good sugar-acid balance and abundant juice. Analysis of the fragrance components of ‘Jinhyang’ revealed the presence of a large amount of fragrant volatile compounds compared to that of the standard cultivar ‘Niitaka’. In particular, ‘Jinhyang’ contains ethyl hexanoate and ethyl butanoate, which are known volatile compounds generated by pineapple and mango. Because of its strong uprightness, cultivation management, such as shoot bending, is necessary to maintain flower buds (Registration No. 9387).
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‘Saebonghwang’ was developed as a mid-late ripening rice variety with good cultivation stability and yield in transplanting and under direct seeding cultivation. It was bred by backcrossing ‘Hopum’, which has excellent cultivation stability and adaptability to direct seeding, as a repeat parent, and ‘Hitomebore,’ a Japanese rice variety with excellent taste, as a donor. The heading date of ‘Saebonghwang’ was August 11 under ordinary planting, which is two days earlier than that of ‘Nampyeong’, and August 13 under wet-direct seeding cultivation, which is the same as that of ‘Dongan’. ‘Saebonghwang’ had a culm length of 74 cm under wet-direct seeding cultivation, which is larger than that of ‘Dongan’ (69 cm), and had good cultivation stability, including lodging resistance. ‘Saebonghwang’ is resistant to bacterial leaf blight and rice stripe virus and shows moderate resistance to rice blast. Furthermore, ‘Saebonghwang’ has better grain appearance, superior taste and better milling characteristics than ‘Nampyeong’. The yield of ‘Saebonghwang’ when cultivated under ordinary planting, wet-direct seeding, and double cropping was 5.65, 5.37, and 5.37 MT/ha, respectively. Under wet direct sowing by drone cultivation, ‘Saebonghwang’ showed good initial survival rate and cultivation stability. The yield was 4.49 MT/ha, slightly lower than that obtained under transplanted cultivation (5.03 MT/ha), but was not statistically different; therefore, ‘Saebonghwang’ was adjudged to be adaptable to drone wet-direct seeding. ‘Saebonghwang’ can be used in various ways to suit the working conditions of farms, increase farm work efficiency, and expand the area of wet direct-seeding cultivation (Registration No. 9171).
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