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Plant breeding and biotechnology update

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수록정보
수록범위 : 1권1호(2013)~7권4호(2019) |수록논문 수 : 283
Plant breeding and biotechnology
7권4호(2019년 12월) 수록논문
최근 권호 논문
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KCI등재

1Estimates of Genetic Parameters in Bambara Groundnut {Vigna subterranea (L.) VERDC.}

저자 : Nwakuche Chinenye Onwubiko , Michael Ifeanyi Uguru , Grace Ovute Chimdi

발행기관 : 한국육종학회 간행물 : Plant breeding and biotechnology 7권 4호 발행 연도 : 2019 페이지 : pp. 295-301 (7 pages)

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Field evaluation of 33 Bambara groundnut lines were carried out to estimate genetic variability, heritability and genetic advance. One-way analysis of variance (ANOVA) result showed significant differences for 14 of the 17 agronomic traits studied. The results on the variance components revealed that phenotypic variance had values (vigour index 2.30, pod length 10.09, seed length 1.64) that were slightly higher than the respective genotypic variance (vigour index 1.68, pod length 9.88, seed length 0.26). Similarly, the values (number of branches 41.91, number of nodes 68.72, internode length 59.02) of phenotypic coefficient of variation (PCV) were slightly higher than the corresponding genotypic coefficient of variation (GCV) (number of branches 40.11, number of nodes 66.98, internode length 57.31), suggesting a substantial genetic variability that can serve as a base for Bambara groundnut improvement. High estimates of heritability were observed for most characters like number of branches (95.70%), number of nodes (97.46%), internode length (97.10%), pod length (97.91%), and seed length (93.79%). Likewise, genetic advance values for most traits were high, pod length (201), number of nodes (200), internode length (200), number of branches (197) and seed yield (195), implying that improvement of seed yield in Bambara groundnut can be achieved through direct selection.

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2Dissecting QTLs for Reproductive Stage Salinity Tolerance in Rice from BRRI dhan 47

저자 : Sejuti Mondal , Teresita H. Borromeo , M Genaleen Q. Diaz , Junrey Amas , M Akhlasur Rahman , Michael J. Thomson , Glenn B. Gregorio

발행기관 : 한국육종학회 간행물 : Plant breeding and biotechnology 7권 4호 발행 연도 : 2019 페이지 : pp. 302-312 (11 pages)

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Salinity is a common and increasing problem in many coastal rice producing areas around the world. Salinity tolerance at the reproductive stage in rice is crucial as it determines grain yield. An F2 mapping population was developed from two modern rice cultivars contrasting in tolerance: NSIC Rc222 (a high-yielding salt-sensitive variety released in the Philippines) and BRRI dhan 47 (a salt-tolerant variety released in Bangaldesh). The performance of the F2 population showed transgressive segregation in the yield components under salinity stress of EC 10 dS/m under salinized field conditions. Ninety-six single nucleotide polymorphism (SNP) markers using 96-plex FluidigmTM genotyping were used to construct a linkage map of 1306.2 cM (Kosambi), with an average interval size of 13.6 cM. Seven putative quantitative trait loci (QTLs) for reproductive stage salinity tolerance traits having LOD values ranging from 2.9 to 4.1 were identified on chromosomes 1, 2, 5 and 11, explaining 13.4 to 18.4% of the phenotypic variation. Results of this mapping study identified a genomic region on chromosome 2 that confers salinity tolerance at the reproductive stage as measured by the number of filled spikelets, percent filled spikelets and yield. This study reports the molecular mapping of QTLs controlling re­productive-stage salinity tolerance-related traits, which will be useful in marker-assisted selection and breeding population develop­ment in rice.

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3Geographic Variation of Morphological Characters among Cultivated Types of Perilla Crop and Their Weedy Types in Korea and China

저자 : Kyu Jin Sa , Dae Hyun Park , Su Eun Lim , Shi Jun Ma , Ju Kyong Lee

발행기관 : 한국육종학회 간행물 : Plant breeding and biotechnology 7권 4호 발행 연도 : 2019 페이지 : pp. 313-325 (13 pages)

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In this study, we detected the morphological variation of 83 Perilla accessions from Korea and China by observing the measurements of seven quantitative and eight qualitative characters. Most accessions of cultivated var. frutescens from Southern China showed higher plant height than accessions from Korea and Northern China. The accessions of cultivated var. frutescens from Southern China have a relatively late flowering time, while there were three types of accessions for cultivated var. frutescens from Korea and Northern China: early-maturity, middle-maturity, and late-maturity. These results indicate that latitude with geographical distribution may be an essential factor affecting the flowering time in Perilla species in East Asia. In principal components analyses (PCAs), four quantitative traits and five qualitative characters contributed in the positive direction on the first axis. The accessions of cultivated var. frutescens were clearly separated from accessions of cultivated and weedy types of var. crispa in the PCAs, while the accessions of cultivated and weedy types of var. crispa revealed no separation. In addition, most accessions of weedy type of var. frutescens were not clearly separated with the accessions of cultivated and weedy types of var. crispa. In this study, we have provided the information regarding the morphological variation of accessions of two cultivated types of Perilla crop and their weedy types from Korea and China. The findings provide further insight into the morphological variations and differentiation of Perilla accessions with different geographical distributions in Korea and China.

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4Drought Tolerance Screening of Maize Inbred Lines at an Early Growth Stage

저자 : Bishnu Adhikari , Kyu Jin Sa , Ju Kyong Lee

발행기관 : 한국육종학회 간행물 : Plant breeding and biotechnology 7권 4호 발행 연도 : 2019 페이지 : pp. 326-339 (14 pages)

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Drought is one of the major abiotic factors that have a serious effect on the production of cereals crops including maize, which is grown widely in the world. Screening based on drought facilitates selection of inbred lines and an understanding of drought­tolerant traits. The effect of drought stress and rescue after stress on maize inbred lines was investigated in this study. Different plant growth attributes namely plant height, leaf area and weight, stem weight, root length, shoot and root fresh and dry weight, and total leaf chlorophyll content were measured. Six flint inbred lines (FLD 12, FLD 23, FLD 24, FLD 33, FLD 35, and FLD 37) were screened as drought-tolerant lines, whereas another six flint inbred lines (FLD 01, FLD 13, FLD 16, FLD 18, FLD 29, and FLD 31) were screened as drought susceptible lines. Growth attributes under different drought conditions were subjected to a correlation test and analysis of variance and showed highly significant relationships with each other. The drought effect differed with different inbred lines, indicating a wide variability of drought response at the early growth stage of maize plants. The results obtained from this study will be useful for selecting maize inbred lines in future breeding programs for enhancing drought tolerance.

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5Characterization and Genetic Mapping of White-Spotted Leaf (wspl) Mutant in Rice

저자 : Backki Kim , Hyerim Lee , Zhuo Jin , Dongryung Lee , Hee-jong Koh

발행기관 : 한국육종학회 간행물 : Plant breeding and biotechnology 7권 4호 발행 연도 : 2019 페이지 : pp. 340-349 (10 pages)

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Spotted leaf mutants which produce necrotic lesions spontaneously are important sources to study programmed cell death in plant defense responses. A novel white-spotted leaf (wspl) mutant was induced from Ilpum, Korean japonica rice cultivar by the treatment of ethyl methane sulfonate (EMS). The phenotype of wspl mutant differed from that of other spotted leaf mutants in that not only brown spots but also white lesion mimic spots were observed on the tip of the leaves from the vegetative stage. Strong nitro blue tetrazolium (NBT) and 3, 3′-diaminobenzidine (DAB) staining were observed on the older leaf of wspl mutant in microscopic reactive oxygen species (ROS) assay, and the chlorophyll content of wspl mutant maintained longer than wild-type in the old leaves. Genetic analysis revealed that the wspl mutant trait was controlled by a single recessive gene and the locus of wspl gene was mapped on the long arm of chromosome 5 between the flanking markers S05100 and S05112 (4.1 Mb). Through the combination of the genetic mapping and SNP analysis, two candidate genes for white-spotted leaf were identified in the genic region. A novel phenotype of white-spotted leaf mutant has not yet been reported, thus further study of the wspl mutant will contribute to understanding of the molecular mechanisms involved in lesion mimic phenotype in rice.

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6Traits Affecting Low Temperature Tolerance in Tomato and Its Application to Breeding Program

저자 : Rajametov Sherzod , Eun Young Yang , Myeong Cheoul Cho , Soo Young Chae , Jeong Ho Kim , Chun Woo Nam , Won Byoung Chae

발행기관 : 한국육종학회 간행물 : Plant breeding and biotechnology 7권 4호 발행 연도 : 2019 페이지 : pp. 350-359 (10 pages)

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It is essential to develop tomato (Solanum lycopersicum L.) cultivars with tolerance to low temperature (LT) for reducing production cost and increasing fruit quality in winter. This study was conducted to investigate the effects of LT on 40 tomato accessions for establishing selection criteria to select accessions with LT tolerance. Tomato plants were grown in two polyethylene film greenhouses with night temperature set-points of 10℃ and 15℃. LT significantly affected the photosynthetic parameters as well as both vegetative and reproductive growth in tomato. There was a significant difference in plant height between plants grown in 10℃ and 15℃. Leaf length and width were also significantly lower in 10℃. The stem diameter was generally lower in 10℃ but 12 accessions in 10℃ had thicker stem diameter than those in 15℃. The retarded growth was due to lower photosynthetic rate in 10℃ than 15℃. Significant delay in flowering was observed among tomato accessions in 10℃. For the number of flowers, 62.5% showed the increase but 37.5% did the decrease in 10℃ among 40 tomato accessions, showing genotype specific interaction with LT. Accessions with small fruits showed reduced fruit set in 10℃; however, it was not obvious among accessions with large fruits. Interestingly, 75% of accessions showed increased chlorophyll contents in 10℃ compared to 15℃. An accession 'VI037163' was selected for LT tolerance based on good performance in six out of seven traits considered such as plant height, leaf length, stem diameter, chlorophyll contents, days to flowering, the number of flowers and fruit set.

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7Screening of Submergence Tolerant Rice under Artificial Condition Based on Multiple Selection Indices

저자 : Rina Hapsari Wening , Indrastuti Apri Rumanti , Bambang Sapta Purwoko , Willy Bayuardi Suwarno , Nurul Khumaida

발행기관 : 한국육종학회 간행물 : Plant breeding and biotechnology 7권 4호 발행 연도 : 2019 페이지 : pp. 360-374 (15 pages)

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Flooding often occurs during the vegetative stage in freshwater swamps and rainfed lowlands, and therefore sub­mergence tolerant rice varieties are needed. This study was aimed at evaluating rice lines to submergence stress. The experiments were conducted at Indonesian Center for Rice Research (ICRR) experimental station in Sukamandi, Subang, West Java, each in different environmental conditions: (1) submergence condition, which was conducted in a submergence pool and (2) optimal condition, which was conducted in the irrigation field. Ninety-five lines and four check varieties, namely Inpari 30 Ciherang Sub1, IR42, Limboto, and IR20 were used. An augmented design with five blocks was followed in each environment. Three selection methods were used: (1) selection based on survival rate and vigor, (2) selection based on productivity under submergence and sensitivity index on productivity character, (3) selection based on the weighted selection index using sensitivity index variables of morphological and agronomic characters. The clustergram analysis with heatmaps method was used to compile of three previous selection methods to facilitate scientist in clarifying tolerant and sensitive lines. There were eighteen lines selected as tolerant to submergence stress, i.e., line no. 9, 15, 34, 46, 47, 48, 49, 50, 53, 55, 56, 57, 59, 60, 61, 62, 89, and 90. These lines are considered promising for breeding improved rice varieties tolerant to submergence.

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8Evaluation of Sprout Growth Traits and Flavonoid Content in Common and Tartary Buckwheat Germplasms

저자 : Muhammad Rauf , Hyemyeong Yoon , Sukyeung Lee , Do Yoon Hyun , Myung-chul Lee , Sejong Oh , Yu-mi Choi

발행기관 : 한국육종학회 간행물 : Plant breeding and biotechnology 7권 4호 발행 연도 : 2019 페이지 : pp. 375-385 (11 pages)

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Buckwheat sprouts are used as a functional food in several countries owing to their soft and slightly crispy texture and attractive fragrance. They possess excellent anti-oxidant activity and are rich in amino acids, minerals, and flavonoids; however, sprout growth and flavonoid content may vary among buckwheat germplasms. The present study was performed to evaluate 87 common and 13 tartary buckwheat germplasms for sprout growth traits and rutin and quercetin content. We found that the common type buckwheat sprouts had considerably higher leaf length and width, fresh shoot weight, and extract weight than those of tartary buckwheat sprouts, but the rutin and quercetin content was significantly higher in tartary buckwheat sprouts. The rutin content ranged from 323.7 to 750.6 mg/100 g DW in common buckwheat sprouts and 2220 to 3185 mg/100 g DW in tartary buckwheat sprouts. Similarly, the quercetin content ranged from 0.27 to 1.82 and 4.76 to 30.41 mg/100 g DW in common and tartary buckwheat sprouts, respectively. Additionally, there was no significant correlation between the growth traits and rutin content in common buckwheat sprouts, whereas, the leaf length of tartary buckwheat sprouts showed a significant positive correlation with the rutin content. This information can be used by plant breeders and plant geneticists to study the genetic and genomic approaches for buckwheat breeding program.

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9Analysis of Agronomic Traits of Soybeans Adaptable to Northern Area of the Korean Peninsula

저자 : Myoung Ryoul Park , Min-jung Seo , Hong-tae Yun , Yong Hawn Ryu , Huhn Pal Moon , Dong Soon Kim

발행기관 : 한국육종학회 간행물 : Plant breeding and biotechnology 7권 4호 발행 연도 : 2019 페이지 : pp. 386-394 (9 pages)

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We have conducted this study to select soybeans adaptable to North Korea using growing degree days (GDD) as a heuristic tool. For analyzing climatic conditions, we assumed that climatic conditions of Longjing, Donggang, and Yeoncheon are similar to the Eastern Coast Northern Zone, Suyangsan Northern Zone, and Suyangsan Southern Zone in North Korea, respectively. The predicted days to flowering of 100 soybeans grown at Longjing, Donggang, and Yeoncheon were in ranges from 7/17 to 7/30, from 7/16 to 7/28, and from 7/30 to 8/10, respectively, while the last date of flowering for completely harvesting were predicted by July 12th, August 2nd, and August 11th, respectively. The predicted days to flowering using GDD were almost similar to the days investigated in the three fields. These results showed that GDD is highly effective in predicting development rates of soybean, such as days to flower­ing and days to maturity. Although most of the tested soybeans were difficult to adapt to Longjing, we selected 12, 15, and 16 soybean varieties/lines based on the predicted days to flowering and last date of flowering for completely harvesting and yield of the soybeans grown at Longjing, Donggang and Yeoncheon, respectively, for further analyzing effects of the regional characteristics on agricultural traits of the selected soybeans. The 100-seed weight and yield of the selected soybeans grown at Longjing was significantly low compared with those at the other locations. The results implied that the soybeans would be exposed to freezing temperature before R6 stage and the reduced size would contribute to soybean yield loss. Taken together, we concluded that Suwon212, Iksan13 and 'Shinpaldalkong2' which were stable in degree of lodging, 100-seed weight, and yield at Donggang and Yeoncheon could be adaptable to Suyangsan Northern Zone, and Suyangsan Southern Zone in North Korea.

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10Mutation of Plastid Ribosomal Protein L13 Results in an Albino Seedling-Lethal Phenotype in Rice

저자 : Jinwon Lee , Seonghoe Jang , Sanghoon Ryu , Seulbi Lee , Joonheum Park , Sichul Lee , Gynheung An , Soon Ki Park

발행기관 : 한국육종학회 간행물 : Plant breeding and biotechnology 7권 4호 발행 연도 : 2019 페이지 : pp. 395-404 (10 pages)

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Chloroplasts are essential plant organelles that play important roles in photosynthesis and are involved in many fundamental metabolic pathways. Plastid ribosomal proteins are essential components of protein synthesis machinery and have diverse roles in plant growth and development during chloroplast differentiation. In this study, we isolated and characterized T-DNA-tagged rice mutant (prpl13), which exhibited albino seedling lethality. PRPL13 is a nuclear gene encoding the 50S ribosomal protein L13, which is localized in chloroplasts. Transmission electronic microscopy analysis showed abnormal plastid development in the thylakoids of the chloroplasts of the prpl13 mutant seedlings. Chlorophyll and carotenoid contents were also significantly reduced in the leaves of the mutants. Quantitative reverse transcription-PCR analysis revealed that the prpl13 mutations altered the expression levels of genes involved in photosynthesis and chloroplast development. Thus, our data indicate that nuclear-encoded PRPL13 plays an important role in chloroplast development in rice.

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