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Kim TH, Kim S, Park W, Woo KS, Lee K, Chung MN, Lee YH, Lee HU, Lee KH, Nam SS, Jo H, Lee JD. Genome-wide association study to identify novel loci and genes for Fusarium root rot resistance in sweet potato using genotyping-by-sequencing. Front Plant Sci 2023; 14:1251157. [PMID: 37860237 PMCID: PMC10584150 DOI: 10.3389/fpls.2023.1251157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 09/15/2023] [Indexed: 10/21/2023]
Abstract
Fusarium root rot, caused by Fusarium solani, is a major post-harvest disease in sweet potatoes (Ipomoea batatas (L.) Lam.). An effective strategy for controlling this disease is the development of resistant varieties. In this study, a genome-wide association study (GWAS) was conducted on 96 sweet potato genotypes to identify novel candidate loci and dissect the genetic basis of Fusarium root rot resistance. Genotyping was performed using genotyping-by-sequencing (GBS), and 44,255 SNPs were identified after filtering. The genotypes (n = 96) were evaluated through resistance tests in 2021 and 2022, separately and combined. The GWAS identified two significant SNP markers (LG3_22903756 and LG4_2449919) on chromosomes 3 and 4 associated with Fusarium root rot resistance, respectively. Lesion length showed significant differences between homozygous A and G alleles of LG3_22903756, which can potentially be used to develop molecular markers for selecting accessions resistant to Fusarium root rot. Expression analysis of 11 putative genes flanking the significant SNPs revealed the alteration in the expression of nine genes, indicating their possible involvement in Fusarium root rot resistance. The results of this study will aid in the marker-assisted selection and functional analysis of candidate genes for Fusarium root rot resistance in sweet potatoes.
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Affiliation(s)
- Tae Hwa Kim
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan, Republic of Korea
| | - Sujung Kim
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan, Republic of Korea
| | - Won Park
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan, Republic of Korea
| | - Koan Sik Woo
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan, Republic of Korea
| | - Keunpyo Lee
- International Technology Cooperation Center, Technology Cooperation Bureau, Rural Development Administration, Jeonju, Republic of Korea
| | - Mi Nam Chung
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan, Republic of Korea
| | - Young Hoon Lee
- Planning and Coordination Division, National Institute of Crop Science, Rural Development Administration, Jeonju, Republic of Korea
| | - Hyeong-Un Lee
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan, Republic of Korea
| | - Kyo Hwui Lee
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan, Republic of Korea
| | - Sang-Sik Nam
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan, Republic of Korea
| | - Hyun Jo
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
| | - Jeong-Dong Lee
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
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Lim SM, Choi DS, Chung MN, Lee JS, Kang YS, Choi KH, Moon JY, Nam SS, Jung MY. High impacts of cultivar and home-cooking practice on the content of free myo-inositol, a bioavailable health-promoting cyclitol, in sweet potato. J Food Sci 2023; 88:772-783. [PMID: 36633256 DOI: 10.1111/1750-3841.16456] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 12/02/2022] [Accepted: 12/21/2022] [Indexed: 01/13/2023]
Abstract
Free myo-inositol is a bioavailable form of a cyclitol having various health-promoting activities. The impact of cultivar and home-cooking practice on the content of free myo-inositol in sweet potatoes (12 cultivars grown in 2 different locations) was studied. A GC-MS/MS method following in situ trimethylsilylation was established and validated to determine free myo-inositol. The established analytical method was sensitive, precise, and accurate. It was found that free myo-inositol content in sweet potato varied greatly (sevenfolds) with cultivar, ranging from 377.1 to 2628.3 mg/kg dw. A cultivar Poongwon-mi was found to be an exceptionally rich source of free myo-inositol (2628.3 mg/kg dw). Home-cooking practice markedly increased free myo-inositol content (maximum 240%). Baking showed the highest impact on the increase in free myo-inositol, followed by steaming, microwave cooking, and boiling, in decreasing order. This represents the first report of the remarkably high impact of cultivar and home-cooking practice on the free myo-inositol content in sweet potato. PRACTICAL APPLICATION: The free myo-inositol content in sweet potato varied greatly with the cultivars. Poongwon-mi contained a surprisingly high content of free myo-inositol. Home-cooking dramatically increased the free myo-inositol content.
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Affiliation(s)
- Su Min Lim
- Department of Food Science and Biotechnology, Graduate School, Woosuk University, Wanju-gun Jeonbuk Province, Republic of Korea
| | - Dong Seong Choi
- Department of Food Science and Biotechnology, Graduate School, Woosuk University, Wanju-gun Jeonbuk Province, Republic of Korea
| | - Mi-Nam Chung
- Bioenergy Crop Research Institute, National Institute of Crop Science, RDA, Muan, Jeonnam, Republic of Korea
| | - Jae-Sun Lee
- Chungbuk Agricultural Research & Extension Services, Cheongju, Chungbuk, Republic of Korea
| | - Young-Sik Kang
- Chungnam Agricultural Research & Extension Services, Yesan Chungcheong, Republic of Korea
| | - Kyu-Hwan Choi
- Jeonbuk Agricultural Research & Extension Services, Iksan, Jeonbuk, Republic of Korea
| | - Jin-Young Moon
- Gyeongnam Agricultural Research & Extension Services, Jinju Gyeongsang, Republic of Korea
| | - Sang-Sik Nam
- Bioenergy Crop Research Institute, National Institute of Crop Science, RDA, Muan, Jeonnam, Republic of Korea
| | - Mun Yhung Jung
- Department of Food Science and Biotechnology, Graduate School, Woosuk University, Wanju-gun Jeonbuk Province, Republic of Korea
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Park SU, Lee CJ, Kim SE, Lim YH, Lee HU, Nam SS, Kim HS, Kwak SS. Selection of flooding stress tolerant sweetpotato cultivars based on biochemical and phenotypic characterization. Plant Physiol Biochem 2020; 155:243-251. [PMID: 32781274 DOI: 10.1016/j.plaphy.2020.07.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/20/2020] [Accepted: 07/20/2020] [Indexed: 05/27/2023]
Abstract
Sweetpotato [Ipomoea batatas (L.) Lam] serves as a sustainable food source and ensures nutrition security in the face of climate change. Recently, farmers have developed increased interest in replacing rice with sweetpotato in paddy fields for higher income. However, sweetpotato is more susceptible to flooding stress than other abiotic stresses including drought and salinity. Here, we selected flooding tolerant sweetpotato cultivars based on biochemical characterization. Young seedlings of 33 sweetpotato cultivars were subjected to flooding stress for 20 days, and Yeonjami (YJM) was identified as the most flooding tolerant sweetpotato cultivar. Plant growth and biochemical characteristics of YJM were compared with those of Jeonmi (JM), a flooding sensitive sweetpotato cultivar. Under flooding stress, YJM showed higher content of chlorophyll and lower inhibition of plant height and fibrous root length than JM. Biochemical characterization revealed that although malondialdehyde and hydrogen peroxide contents were increased in fibrous roots of both cultivars, the amount of increase was 4-fold lower in YJM than in JM. Additionally, leaves of YJM showed higher ascorbate peroxidase activity than those of JM under flooding stress. Our results suggest that high membrane stability and antioxidant capacity are important flooding tolerance factors in sweetpotato. Furthermore, several flooding tolerance-related genes involved in starch and sucrose metabolism, fermentation, and cell wall loosening showed earlier induction and higher transcript levels in YJM leaves and fibrous roots than in JM tissues under flooding stress. Thus, phenotypic and biochemical characterization suggests that YJM could be used as a flooding tolerant sweetpotato cultivar.
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Affiliation(s)
- Sul-U Park
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Daejeon, 34141, South Korea; Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Daejeon, 34113, South Korea
| | - Chan-Ju Lee
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Daejeon, 34141, South Korea; Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Daejeon, 34113, South Korea
| | - So-Eun Kim
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Daejeon, 34141, South Korea; Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Daejeon, 34113, South Korea
| | - Ye-Hoon Lim
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Daejeon, 34141, South Korea; Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Daejeon, 34113, South Korea
| | - Hyeong-Un Lee
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, 199 Muan-ro, Muan-gun, 58545, South Korea
| | - Sang-Sik Nam
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, 199 Muan-ro, Muan-gun, 58545, South Korea
| | - Ho Soo Kim
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Daejeon, 34141, South Korea.
| | - Sang-Soo Kwak
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Daejeon, 34141, South Korea; Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Daejeon, 34113, South Korea.
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Ji CY, Kim HS, Lee CJ, Kim SE, Lee HU, Nam SS, Li Q, Ma DF, Kwak SS. Comparative transcriptome profiling of tuberous roots of two sweetpotato lines with contrasting low temperature tolerance during storage. Gene 2020; 727:144244. [DOI: 10.1016/j.gene.2019.144244] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/29/2019] [Accepted: 10/29/2019] [Indexed: 12/28/2022]
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Paul NC, Hwang EJ, Nam SS, Lee HU, Lee JS, Yu GD, Kang YG, Lee KB, Go S, Yang JW. Phylogenetic Placement and Morphological Characterization of Sclerotium rolfsii (Teleomorph: Athelia rolfsii) Associated with Blight Disease of Ipomoea batatas in Korea. Mycobiology 2017; 45:129-138. [PMID: 29138617 PMCID: PMC5673508 DOI: 10.5941/myco.2017.45.3.129] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 06/14/2017] [Accepted: 06/26/2017] [Indexed: 06/01/2023]
Abstract
In this study, we aimed to characterize fungal samples from necrotic lesions on collar regions observed in different sweetpotato growing regions during 2015 and 2016 in Korea. Sclerotia appeared on the root zone soil surface, and white dense mycelia were observed. At the later stages of infection, mother roots quickly rotted, and large areas of the plants were destroyed. The disease occurrence was monitored at 45 and 84 farms, and 11.8% and 6.8% of the land areas were found to be infected in 2015 and 2016, respectively. Fungi were isolated from disease samples, and 36 strains were preserved. Based on the cultural and morphological characteristics of colonies, the isolates resembled the reference strain of Sclerotium rolfsii. Representative strains were identified as S. rolfsii (teleomorph: Athelia rolfsii) based on phylogenetic analysis of the internal transcribed spacer and large subunit genes along with morphological observations. To test the pathogenicity, sweetpotato storage roots were inoculated with different S. rolfsii strains. 'Yulmi' variety displayed the highest disease incidence, whereas 'Pungwonmi' resulted in the least. These findings suggested that morphological characteristics and molecular phylogenetic analysis were useful for identification of S. rolfsii.
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Affiliation(s)
- Narayan Chandra Paul
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan 58545, Korea
| | - Eom-Ji Hwang
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan 58545, Korea
| | - Sang-Sik Nam
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan 58545, Korea
| | - Hyeong-Un Lee
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan 58545, Korea
| | - Joon-Seol Lee
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan 58545, Korea
| | - Gyeong-Dan Yu
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan 58545, Korea
| | - Yong-Gu Kang
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan 58545, Korea
| | - Kyeong-Bo Lee
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan 58545, Korea
| | - San Go
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan 58545, Korea
| | - Jung-Wook Yang
- Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration, Muan 58545, Korea
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Affiliation(s)
- Ung-Han Yoon
- Genomics Division, National Academy of Agricultural Science, Jeonju 54875, Korea
| | - Jae Cheol Jeong
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Sang-Soo Kwak
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Jung-Wook Yang
- Bioenergy Crop Research Institute, National Institute of Crop Science, Muan-gun 58545, Korea
| | - Tae-Ho Kim
- Genomics Division, National Academy of Agricultural Science, Jeonju 54875, Korea
| | - Hyeong-Un Lee
- Bioenergy Crop Research Institute, National Institute of Crop Science, Muan-gun 58545, Korea
| | - Sang-Sik Nam
- Bioenergy Crop Research Institute, National Institute of Crop Science, Muan-gun 58545, Korea
| | - Jang-Ho Hahn
- Genomics Division, National Academy of Agricultural Science, Jeonju 54875, Korea
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Weon HY, Kim BY, Hong SB, Joa JH, Nam SS, Lee KH, Kwon SW. Skermanella aerolata sp. nov., isolated from air, and emended description of the genus Skermanella. Int J Syst Evol Microbiol 2007; 57:1539-1542. [PMID: 17625190 DOI: 10.1099/ijs.0.64676-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A light-pink-coloured bacterium, designated strain 5416T-32T, was isolated from an air sample in Korea. Cells of the strain were strictly aerobic, Gram-negative, motile (single polar or subpolar flagellum) and rod-shaped. Optimal growth occurred at 25–30 °C and at pH 6.0–7.0. The major quinones were Q-10 and Q-8. The major fatty acids were C18 : 1
ω7c (53.8 %) and C16 : 0 (15.9 %). The G+C content of the genomic DNA was 65.0 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain 5416T-32T was most closely related to Skermanella parooensis, with a similarity of 96.2 %, but relatively low sequence similarities (<92 %) were found with respect to other species with validly published names held in GenBank. Phenotypic and genotypic analyses indicated that strain 5416T-32T could not be assigned to any recognized species. Therefore strain 5416T-32T represents a novel species of the genus Skermanella, for which the name Skermanella aerolata sp. nov. is proposed. The type strain is 5416T-32T (=KACC 11604T=DSM 18479T).
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MESH Headings
- Aerobiosis
- Air Microbiology
- Bacterial Typing Techniques
- Base Composition
- DNA, Bacterial/chemistry
- DNA, Bacterial/genetics
- DNA, Ribosomal/chemistry
- DNA, Ribosomal/genetics
- Fatty Acids/analysis
- Flagella/physiology
- Genes, rRNA
- Hydrogen-Ion Concentration
- Korea
- Locomotion
- Molecular Sequence Data
- Phylogeny
- Pigments, Biological/biosynthesis
- Quinones/analysis
- RNA, Bacterial/genetics
- RNA, Ribosomal, 16S/genetics
- Rhodospirillaceae/chemistry
- Rhodospirillaceae/classification
- Rhodospirillaceae/isolation & purification
- Rhodospirillaceae/physiology
- Sequence Analysis, DNA
- Sequence Homology, Nucleic Acid
- Temperature
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Affiliation(s)
- Hang-Yeon Weon
- Applied Microbiology Division, National Institute of Agricultural Science and Technology, Rural Development Administration, Suwon 441-707, Republic of Korea
| | - Byung-Yong Kim
- Korean Agricultural Culture Collection (KACC), Microbial Genetics Division, National Institute of Agricultural Biotechnology, Rural Development Administration, Suwon 441-707, Republic of Korea
| | - Seung-Beom Hong
- Korean Agricultural Culture Collection (KACC), Microbial Genetics Division, National Institute of Agricultural Biotechnology, Rural Development Administration, Suwon 441-707, Republic of Korea
| | - Jae-Ho Joa
- National Institute of Subtropical Agriculture, Rural Development Administration, Jeju 690-150, Republic of Korea
| | - Sang-Sik Nam
- Mokpo Experiment Station, National Institute of Crop Science, Rural Development Administration, Muan 534-833, Republic of Korea
| | - Ki Hwan Lee
- Taean Lily Experimental Station, Chungnam Provincial Agricultural Research and Extension Services, Taean 357-952, Republic of Korea
| | - Soon-Wo Kwon
- Korean Agricultural Culture Collection (KACC), Microbial Genetics Division, National Institute of Agricultural Biotechnology, Rural Development Administration, Suwon 441-707, Republic of Korea
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Kim HH, Lee JK, Yoon JW, Ji JJ, Nam SS, Hwang HS, Cho EG, Engelmann F. Cryopreservation of garlic bulbil primordia by the droplet-vitrification procedure. Cryo Letters 2006; 27:143-53. [PMID: 16892163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The droplet-vitrification protocol, a combination of droplet-freezing and solution-based vitrification was applied for cryopreserving garlic bulbil primordia. The highest survival and regeneration percentages of cryopreserved primordia (90.1 to 95.0 percent and 82.7 to 85.0 percent, respectively) were achieved after preculture for 2-4 days at 10 degree C on solid medium with 0.1 - 0.3 M sucrose, loading for 50 minutes in liquid medium with 2 M glycerol + 0.5 M sucrose, dehydration with PVS3 vitrification solution for 90-150 min, cooling primordia in 5 microl droplets of PVS3 vitrification solution placed on aluminum foil strips by dipping these strips in liquid nitrogen, warming them by plunging the foil strips into pre-heated (40 degree C) 0.8 M sucrose solution for 30 s and further incubation in the same solution for 30 minutes. The optimized droplet-vitrification protocol was successfully applied to bulbil primordia of five garlic varieties originating from various countries and to immature bulbils of two vegetatively propagated Allium species, with regeneration percentages ranging between 77.4 - 95.4 percent.
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Affiliation(s)
- Haeng-Hoon Kim
- National Institute of Agricultural Biotechnology, RDA, Suwon 441-707, Korea.
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