• Title, Summary, Keyword: AFLP

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Genetic Divergence and Relationship Among Four Abalone Species by Isozyme and AFLP analyses (Isozyme 및 AFLP분석에 의한 전복류 4종간의 유전적 차이 및 유연관계)

  • Park Choul-ji;Kijima Akihiro
    • Journal of Aquaculture
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    • v.18 no.4
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    • pp.252-259
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    • 2005
  • Isozyme and AFLP analyses were examined to estimate the utilities of them as a genetic marker. The utilities were evaluated by genetic divergence and relationships among the four distinct abalone species; Haliotis discus hannai collected from northeast coast of Japan and Yellow-Sea coast of China, H. rufescens collected from west coast of USA, H rubra collected from southeast coast of Australia and H midae collected from Cape Town of South Africa. Isozyme and AFLP analyses showed a clear genetic divergence between every pair of species. Genetic relationships among the low species estimated by isozyme and AFLP analyses reflected to geographical distribution and morphological characteristics. In conclusion, Isozyme and AFLP analyses are suitable genetic markers far estimates of genetic divergence and relationship among abalone species.

Differentiation of Elytra Color Patterns in Multicolored Asian Ladybird Beetle, Harmonia axyridis (Coleoptera; Coccinellidae), using AFLP analyses (Amplified Fragment Length Polymorphism (AFLP)을 이용한 무당벌레(Harmonia axyridis : Coccinellidae)의 초시색상패턴의 변이 분석)

  • Park, Cho Rong;Kim, Jeong Hee;Yu, Yong Man;Youn, Young Nam
    • Korean journal of applied entomology
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    • v.55 no.3
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    • pp.245-256
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    • 2016
  • Elytra of Harmonia axyridis exhibit varied color patterns. In the present study, we deciphered the genetic basis for intraspecific diversity of elytra color patterns in H. axyridis, using amplified fragment length polymorphism (AFLP). Twenty-eight AFLP reactions were performed to generate a total of 2,741 bands. Of these, 20 bands were polymorphic for each color pattern. The polymorphic bands showed differences of genetic character among different color patterns of H. axyridis. Among them, ten candidate AFLP markers were color-linked. S1, S2, and S20 markers were detected in Succinea 1 and 2 variants of H. axyridis, whereas S3 and S5 were specifically detected in the Conspicua variant. S15, S18, and S19 were specific to the Succinea 2 variant. Polymerase chain reaction (PCR) products of these ten AFLP markers were sequenced. BLAST analysis of these sequences against the GenBank database revealed their homology to DNA fragments of unknown function. Based on the color-linked AFLP markers, sequence characterized amplified region (SCAR) markers were designed for PCR amplification of genomic DNA. Of the ten AFLP markers, five were successfully converted into SCAR markers, which could discriminate elytra color polymorphism in H. axyridis.

Amplified Fragment Length Polymorphism Fingerprinting as a Tool to Study the Genetic Diversity of Staphylococcus aureus Isolated from Food Sources

  • Kim, Young-Sam;Kim, Jong-Bae
    • Biomedical Science Letters
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    • v.8 no.1
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    • pp.39-46
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    • 2002
  • Amplified fragment length polymorphism (AFLP) is a recently developed PCR-based high resolution fingerprinting method that is able to generate complex banding patterns which can be used to delineate intraspecific genetic relationships among bacteria. In this study, we have modified and evaluated a PCR-based technique, amplified fragment length polymorphism (AFLP) analysis, for use in fingerprinting strains of Staphylococcus aureus. Single-enzyme amplified fragment length polymorphism (SE-AFLP) analysis was used to perform strain identification of Staphylococus aureus. By careful selection of AFLP primers, it was possible to obtain reproducible and sensitive identification to strain level. AFLP fingerprinting of 5 reference strains of Staphylococcus aureus and 65 strains of Staphylococcus aureus that were isolated from food sources of different area and diverse genomic types of Staphylococcus aureus were recognized. As a result of this study, we found that the AFLP patterns of Staphylococcus aureus isolated from Seoul, Taejeon and Gwang-Ju indicated the close relation with genetic similarity. The main purpose of this study was to find an alternative and reliable fingerprinting method to study the overall genetic diversity, using Staphylococcus aureus species as an example, and observed if the method can be successfully applied to all staphylococcal species.

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Diversity and Inheritance of AFLP Markers in Wild and Cultivated Soybeans (AFLP marker를 이용한 콩의 유전적 다양성과 유전분리 분석)

  • 김용호;윤홍태
    • Korean Journal of Plant Resources
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    • v.17 no.3
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    • pp.265-271
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    • 2004
  • Genetic variation is the basis of crop improvement. Limited genetic diversity in a crop species may restrict the amount of genetic improvement that can be achieved through plant breeding. Soybean is one of the world's most important crops. A potential source of genetic variability for the cultivated soybean is the wild species G. soja Sieb. & Zucc. Amplified fragment length polymorphism (AFLP) analysis is a PCR-based technique, which can detect a 10-fold greater nubmer of loci than other DNA marker analysis. Twenty cultivated soybeans and two-hundred wild soybeans were used to determine genetic vatiations by AFLPs and evaluate the usefulness of AFLPs as DNA markers. Six-hundred and ten fragments were detected with an average of 56 AFLP fragments produced per primer in a total of 11 AFLP primer pairs. The number of polymorphic loci detected per primer ranged from 7 to 20 and the polymorphism was greater in wild than in cultivated soybean. F$_2$ segregation analysis of four AFLP fragments in combination of Hwaeomputkong ${\times}$ PI 417479 indicated that they segregate as stable Mendelian loci with 3 : 1. This results strongly suggest that the AFLP analysis is a good technique for the detection of genetic polymorphism in a wide plant species.

Identification of Korean Native Goat Meat using Amplified Fragment Length Polymorphism (AFLP) DNA Markers (Amplified Fragment Length Polymorphism (AFLP) DNA Marker를 이용한 한국 재래흑염소육 감별)

  • 정의룡
    • Food Science of Animal Resources
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    • v.22 no.4
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    • pp.301-309
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    • 2002
  • This study was carried out to develop the breed-specific DNA markers for breed identification of Korean native goat meat using amplified fragment length polymorphism (AFLP)-PCR techniques. The genomic DNAs of Korean native goat, imported black goat and four dairy goat breeds(Saanen, Alpine, Nubian and Toggenburg) were extracted from muscle tissues or blood. Genomic DNA was digested with a particular combination of two restriction enzymes with 4 base(Mse I and Taq I) and 6 base(EcoR I and Hind III) recognition sites, ligated to restriction specific adapters and amplified using the selective primer combinations. In AFLP profiles of polyacrylamide gels, the number of scorable bands produced per primer combination varied from 36 to 74, with an average of 55.5. A total of 555 bands were produced, 149(26.8%) bands of which were polymorphic. Among the ten primer combinations, two bands with 2.01 and 1.26 kb in M13/H13 primer and one band with 1.65 kb in E35/H14 primer were found to be breed-specific AFLP markers in Korean native goat when DNA bands were compared among the goat breeds. In the E35/H14 primer combination, 2.19, 2.03, 0.96 and 0.87 kb bands detected in imported black goat, 2.13 kb band in Saanen breed and 2.08 kb band in Nubian breed were observed as breed-specific bands showing differences between goat breeds, respectively. The E35/H14 primer combination produced four DNA bands distinguished between Korean native goat and Saanen breed. The is study suggested that the breed specific AFLP bands could be used as DNA markers for the identification of Korean native goat meat from imported black goat and dairy goat meats.

DNA Fingerprinting of Rice Cultivars using AFLP and RAPD Markers

  • Cho, Young-Chan;Shin, Young-Seop;Ahn, Sang-Nag;Gleen B. Gregorio;Kang, Kyong-Ho;Darshan Brar;Moon, Huhn-Pal
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.44 no.1
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    • pp.26-31
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    • 1999
  • This experiment was conducted to evaluate genetic variation in 48 rice accessions (Oryza sativa L.) using AFLP and RAPD markers. For AFLP, a total of 928 bands were generated with 11 primer combinations and 327 bands (35.2%) of them were polymorphic among 48 accessions. In RAPD analyses using 22 random primers 145 bands were produced, and 121 (83.4%) were polymorphic among 48 accessions. Each accession revealed a distinct fingerprint by two DNA marker systems. Cluster analysis using AFLP-based genetic similarity tended to classify rice cultivars into different groups corresponding to their varietal types and breeding pedigrees, but not using RAPD-based genetic similarity. The AFLP marker system was more sensitive than RAPD in fingerprinting of rice cultivars with narrow genetic diversity.

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Identification of tobacco Burley species specific marker in several tobacco species by AFLP (AFLP 방법을 이용한 담배 버어리종 특이 프라이머의 개발)

  • Lee, Yung-Gi;Jung, Suk-Hun;Keum, Wan-Soo;Lee, Jeong-Heon;Lee, Cheong-Ho;Rhee, Moon-Soo
    • Journal of the Korean Society of Tobacco Science
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    • v.28 no.2
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    • pp.94-99
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    • 2006
  • AFLP(Amplified Fragment Length Polymorphism) analysis was conducted to cultivars of tobacco, Nicotiana tabacum in order to select the cultivar-specific markers. AFLP results using 12 primer sets revealed genetic diversity among 12 field grown tobacco cultivars. Polymorphic fragments amplified by PCR was purified and cloned to identify their nucleotide sequences. From the sequences of them, 40 primer sets were designed to select cultivar-specific markers. When genomic DNA isolated from tobacco were used as PCR template, a set of primers, BrSF/BrSR showed Burley-specific band patterns. The results indicate that AFLP technique used in this experiments is useful for identifying tobacco cultivars in a rapid manner.

The Use of AFLP Markers for Cultivar Identification in Hydrangea macrophylla

  • Lee, Jae Ho;Hyun, Jung Oh
    • Journal of Korean Society of Forest Science
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    • v.96 no.2
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    • pp.125-130
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    • 2007
  • The principal morphological characters used for identification of hydrangea cultivars are often dependent on agroclimatic conditions. Furthermore, information on the selection or the genetic background of the hydrangea breeding is so rare that a molecular marker system for cultivar identification is needed. Amplified fragment length polymorphism (AFLP) markers were employed for fingerprinting Hydrangea macrophylla cultivars and candidate cultivars of H. macrophylla selected in Korea. One AFLP primer combination was sufficient to distinguish 17 H. macrophylla cultivars and 4 candidate cultivars. The profile of 19 loci that can minimize the error of amplification peak detection was constructed. AFLP markers were efficient for identification, estimation of genetic distances between cultivars, and cultivar discrimination. Based on the observed AFLP markers, genetic relationship was reconstructed by the UPGMA method. Seventeen H. macrophylla cultivars and H. macrophylla for. normalis formed a major cluster, and candidate cultivars selected in Korea formed another cluster.

Analysis of genetic relationships of Colletotrichum spp. isolated from sweet persimon with AFLP (AFLP를 이용한 단감나무 탄저병 병원균 Colletotrichum spp.의 유연관계 분석)

  • Kim, Hee-Jong;Jeong, Bong-Gu;Lee, Youn-Su
    • The Korean Journal of Mycology
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    • v.29 no.1
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    • pp.9-14
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    • 2001
  • Colletotrichum species are important fungal pathogens that cause great damages on various host plant species worldwide. In Korea, Colletotrichum species cause massive economic losses on apple, peach, grape, and especially, sweet persimon productions. In the past, identification of the pathogen and the studies on the genetic relationships among the pathogenic isolates were mainly based on morphology, cultural characteristics, and the difference in pathogenicity. However, in recent years, these traditional methods have been replaced with molecular methods including AFLP. AFLP method with the merits of both RAPD and RFLP has been widely used for the genetic relationship studies of various organisms. Therefore, in this study, AFLP method was employed for the studies of genetic relationships among the different isolates of Colletotrichum species collected from various parts of sothern Korea. As a result, two specific band pattern groups were observed among different isolates of Colletotrichum species.

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Fingerprinting of Listeria monocytogenes by Amplified Fragment Length Polymorphism Analysis

  • Jin, Hyun-Seok;Kim, Jong-Bae
    • Biomedical Science Letters
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    • v.8 no.1
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    • pp.29-37
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    • 2002
  • Listeria monocytogenes poses an increasing health risk, which in part is due to increasing health risk, consumption of ready-to-eat food products and the introduction of increasing numbers of food products from regions with different dietary habits. L. monocytogenes can be present in meat, shellfish, vegetables, unpasteurised milk and soft cheese and poses a risk if food containing these products is stored at refrigeration temperature and is not properly heated before consumption, as L. monocytogenes is psychrophilic. Amplified-fragment length polymorphism (AFLP) analysis is the method of genotypic techinique in which adaptor oligonucleotides are ligated to restriction enzyme fragments and then used as target sites for primers in a PCR amplification. The amplified fragments are electrophoretically separated to give strain-specific band profiles. Single-enzyme approach that did not require costly equipment or reagents for the fingerprinting of strains of Listeria monocytogenes was developed. Single-enzyme amplified fragment length polymorphism (SE-AFLP) analysis was used to perform species and strain identification of Salmonella, Shigella, Yersinia and E. coli. By careful selection of AFLP primers, it was possible to obtain reproducible and sensitive identification to strain level. The AFLP patterns of L. monocytogenes are divided by the kinds of specimens in which were isolated. SE-AFLP fragments can be analyzed using standard gel electrophoresis, and can be easily scored by visual inspection, due to the low complexity of the fingerprint obtained by this method. These features make SE-AFLP suitable for use in either field or laboratory applications.

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