• Title/Summary/Keyword: Genetic evaluation

Search Result 891, Processing Time 0.029 seconds

Diversity of Bacillus thuringiensis Strains Isolated from Citrus Orchards in Spain and Evaluation of Their Insecticidal Activity Against Ceratitis capitata

  • J.C., Vidal-Quist;Castanera, P.;Gonzalez-Cabrera, J.
    • Journal of Microbiology and Biotechnology
    • /
    • v.19 no.8
    • /
    • pp.749-759
    • /
    • 2009
  • A survey of Bacillus thuringiensis (Berliner) strains isolated from Spanish citrus orchards has been performed, and the strains were tested for insecticidal activity against the Mediterranean fruit fly Ceratitis capitata (Wiedemann), a key citrus pest in Spain. From a total of 150 environmental samples, 376 isolates were selected, recording a total B. thuringiensis index of 0.52. The collection was characterized by means of phase-contrast microscopy, SDS-PAGE, and PCR analysis with primer pairs detecting toxin genes cry1, cry2, cry3, cry4, cry5, cry7, cry8, cry9, cry10, cry11, cry12, cry14, cry17, cry19, cry21, cry27, cry39, cry44, cyt1, and cyt2. Diverse crystal inclusion morphologies were identified: bipyramidal (45%), round (40%), adhered to the spore (7%), small (5%), and irregular (3%). SDS-PAGE of spore-crystal preparations revealed 39 different electrophoresis patterns. All primer pairs used in PCR tests gave positive amplifications in strains of our collection, except for primers for detection of cry3, cry19, cry39, or cry44 genes. Strains containing cry1, cry2, cry4, and cry27 genes were the most abundant (48.7%, 46%, 11.2%, and 8.2% of the strains, respectively). Ten different genetic profiles were found, although a total of 109 strains did not amplify with the set of primers used. Screening for toxicity against C. capitata adults was performed using both spore-crystal and soluble fractions. Mortality levels were less than 30%. We have developed a large and diverse B. thuringiensis strain collection with huge potential to control several agricultural pests; however, further research is needed to find out Bt strains active against C. capitata.

Effects of Replacing Fish Meal With Ensiled Shrimp By-Product on the Performance and Carcass Characteristics of Growing Pigs

  • Ngoan, Le Duc;Ogle, Brian;Lindberg, Jan Erik
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.14 no.1
    • /
    • pp.82-87
    • /
    • 2001
  • A feeding trial was conducted to evaluate the effects of replacing fish meal (FM) with ensiled shrimp by-product (ESB) in a cassava root meal and rice bran-based diet on the performance and carcass characteristics of growing pigs. Thirty six crossbred (Large White$\times$Mong Cai) pigs, with an average initial BW of 19.4 kg, were randomly allocated to one of three different dietary treatments in which the crude protein of the FM was replaced with 0, 50 or 100% ESB. The animals were fed restrictedly and at the end of the experiment at a BW of about 90 kg, 6 representative animals in each treatment group were slaughtered for carcass quality evaluation. Animal growth performance and daily feed intake were significantly reduced (p<0.05) by the inclusion of shrimp by-products in the diets, whereas feed conversion ratios and carcass measurements were not significantly affected (p>0.05). Daily weight gains of the pigs fed the 100% FM diet and 50% ESB diet were significantly (p<0.05) higher than those of pigs fed the 100% ESB diet. In conclusion, from an economical as well as performance point of view, ESB can replace 50% of the crude protein of FM in cassava root meal and rice bran-based diets for growing pigs with a low genetic growth potential.

Acinetobacter antiviralis sp. nov., from Tobacco Plant Roots

  • Lee, Jung-Sook;Lee, Keun-Chul;Kim, Kwang-Kyu;Hwang, In-Cheon;Jang, Cheol;Kim, Nam-Gyu;Yeo, Woon-Hyung;Kim, Beom-Seok;Yu, Yong-Man;Ahn, Jong-Seog
    • Journal of Microbiology and Biotechnology
    • /
    • v.19 no.3
    • /
    • pp.250-256
    • /
    • 2009
  • Acinetobacter strain $KNF2022^T$ was isolated from tobacco plant roots during the screening of antiviral substances having inhibitory effects on Tobacco mosaic virus (TMV) and examined by phenotypic, chemotaxonomic, and genetic characterization. It was a nonmotile, Gram-negative bacterium. This strain contained Q-9 as the main respiratory quinone. The major cellular fatty acids of the isolate were 16:0, 18:1 w9c, and 16:1 w7c/15 iso 2OH. The DNA base composition was 44 mol%. Phylogenetic analysis based on the 16S rRNA sequence revealed that the isolate formed an evolutionary lineage distinct from other Acinetobacter species. Based on the evaluation of morphologic, physiologic, and chemotaxonomic characteristics, DNA-DNA hybridization values, and 16S rRNA sequence comparison, we propose the new species Acinetobacter antiviralis sp. nov., the type strain of which is $KNF2022^T$ (=KCTC $0699BP^T$).

Estimation of Growth Traits Using Growth Curve in Gyungnam-heugdon (Berkshire) (경남흑돈(버크셔)에서 성장곡선을 이용한 성장형질의 추정)

  • Do, C.H.
    • Journal of Animal Science and Technology
    • /
    • v.49 no.2
    • /
    • pp.195-202
    • /
    • 2007
  • The growth traits in swine are economically important, which are measured by gain in weight during test period or by age of days to certain weight. However, the difference in growth rate due to individual performance and also other factors occurs. The more reasonable estimation of the measurements of these traits provides the less error in genetic evaluation of pigs. The data from 1,576 heads being weighed periodically of Gyungnam-heugdon(Berkshire) were analyzed to estimate the growth curve which is used to decide average daily gain and days to 90kg. It may not be possible to directly compare accuracy between the conventional methods and the alternative methods. However, the alternative methods by growth curve would be superior to the conventional methods not only in theoretical background, but also in acceptability for diverse factors such as breed, sex and age. The theoretical superiority of the alternative methods comes from estimation at same age in daily gain and calculation of additional days from measuring date to days to 90kg by growth curve of individual. Also this can be easily adopted in a computer system according to breed and sex.

Molecular Evaluation of DNMT3A and IDH1/2 Gene Mutation: Frequency, Distribution Pattern and Associations with Additional Molecular Markers in Normal Karyotype Indian Acute Myeloid Leukemia Patients

  • Ahmad, Firoz;Mohota, Rupali;Sanap, Savita;Mandava, Swarna;Das, Bibhu Ranjan
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.15 no.3
    • /
    • pp.1247-1253
    • /
    • 2014
  • Mutations in the DNMT3A and IDH genes represent the most common genetic alteration after FLT3/NPM1 in acute myeloid leukemia (AML). We here analyzed the frequency and distribution pattern of DNMT3A and IDH mutations and their associations with other molecular markers in normal karyotype AML patients. Fortyfive patients were screened for mutations in DNMT3A (R882), IDH1 (R132) and IDH2 (R140 and R172) genes by direct sequencing. Of the 45 patients screened, DNMT3A and IDH mutations were observed in 6 (13.3%) and 7 (15.4%), respectively. Patients with isolated DNMT3A mutations were seen in 4 cases (9%), isolated IDH mutations in 5 (11.1%), while interestingly, two cases showed both DNMT3A and IDH mutations (4.3%). Nucleotide sequencing of DNMT3A revealed missense mutations (R882H and R882C), while that of IDH revealed R172K, R140Q, R132H and R132S. Both DNMT3A and IDH mutations were observed only in adults, with a higher frequency in males. DNMT3A and IDH mutations were significantly associated with NPM1, while trends towards higher coexistence with FLT3 mutations were observed. This is the first study to evaluate DNMT3A/IDH mutations in Indian patients. Significant associations among the various molecular markers was observed, that highlights cooperation between them and possible roles in improved risk stratification.

Evaluation of the Quality of the Case Reports in Journal of Korean Medicine from Year 2015 to 2020 : Using CARE Guidelines (CARE 지침에 따른 대한한의학회지의 증례 보고에 대한 질 평가 연구: 2015년~2020년 증례 보고를 중심으로)

  • Hwang, Ji Hye;Ku, Jaseung;Nam, Eun-Young
    • The Journal of Korean Medicine
    • /
    • v.41 no.2
    • /
    • pp.80-95
    • /
    • 2020
  • Objectives: The purpose of this study is to assess the quality of the Journal of Korean medicine case reports. Methods: Case reports published in the Journal of Korean Medicine from January 2015 to March 2020 were selected by using Oriental Medicine Advanced Searching Integrated System (OASIS) and the journal search system of the Korean Medical Association (https://www.jkom.org). The quality of the case reports was assessed using the Consensus-based Clinical Case Reporting Guideline Development (CARE) guidelines. Results: 33 case reports were selected for the assessment. Based on the CARE guidelines, 61.54% of the case reports included necessary information, but the quality level was uneven. More than 60% of the reports were missing data regarding 'Discussion of the strengths and limitations in your approach to this case', 'Intervention adherence and tolerability', 'Timeline', 'Medical, family, and psychosocial history including relevant genetic information', 'Patient perspective or experience', 'Adverse and unanticipated events', 'Administration of intervention', and 'De-identified demographic information and other patient specific information'. In most reports of over 90%, data regarding 'Diagnostic challenges', 'Intervention adherence and tolerability', and 'Key word' were not included. Conclusions: Efforts are needed to improve the quality of case reports in the Journal of Korean Medicine, and it is necessary to develop appropriate guidelines for case reporting for the Journal of Korean Medicine. In addition, all articles submitted to the Journal of Korean Medicine are to be complied with submission instructions and CARE guidelines.

Apparel Coordination based on Human Sensibility Ergonomics using Preference of Female Students (여학생의 선호도를 이용한 감성공학적 의상 코디)

  • Cho, Dong-Ju;Han, Kyung-Su;Hwang, Kyung-Hee;Chung, Kyung-Young;Lee, Jung-Hyun
    • Proceedings of the Korea Contents Association Conference
    • /
    • 2007.11a
    • /
    • pp.146-150
    • /
    • 2007
  • As the internet has become a mainstream information tool, searching answers has become crucial as well. The collaborative filtering estimates and recommends items based upon the similar preference. However, because it refers to partial users information who have the similar preference, it tends to ignore the rest. In this paper, we propose the apparel coordination based on human sensibility ergonomics using the female students preference. This proposed method calculates evaluation values using fitness function based genetic algorithm, and gathers users through a-cut. Finally, the collaborative filtering recommends apparel coordination. To estimate the performance, the suggested method is compared with FAIMS-I, FAIMS-II in the questionnaire dataset.

  • PDF

Evolving Team-Agent Based on Dynamic State Evolutionary Artificial Neural Networks (동적 상태 진화 신경망에 기반한 팀 에이전트의 진화)

  • Jin, Xiang-Hua;Jang, Dong-Heon;Kim, Tae-Yong
    • Journal of Korea Multimedia Society
    • /
    • v.12 no.2
    • /
    • pp.290-299
    • /
    • 2009
  • Evolutionary Artificial Neural Networks (EANNs) has been highly effective in Artificial Intelligence (AI) and in training NPCs in video games. When EANNs is applied to design game NPCs' smart AI which can make the game more interesting, there always comes two important problems: the more complex situation NPCs are in, the more complex structure of neural networks needed which leads to large operation cost. In this paper, the Dynamic State Evolutionary Neural Networks (DSENNs) is proposed based on EANNs which deletes or fixes the connection of the neurons to reduce the operation cost in evolution and evaluation process. Darwin Platform is chosen as our test bed to show its efficiency: Darwin offers the competitive team game playing behaviors by teams of virtual football game players.

  • PDF

Evaluation of Cosmeceutical Properties of Fish Skin By-product Hydrolysates Collected During Surimi Manufacturing Process (연육 제조과정에서 발생하는 어피 부산물의 활용을 위한 Cosmeceutical 활성 평가)

  • Oh, Jae-Young;Lee, Hyo-Geun;Je, Jun-Geon;Wang, Lei;Kim, Hyun-Soo;Jeon, You-Jin
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.53 no.3
    • /
    • pp.297-307
    • /
    • 2020
  • This study investigated the cosmetic effects of enzymatic hydrolytes of an aquatic by-product, fish skin. The skins of olive flounder Paralichthys olivaceus (PO) and Alaska pollock Gadus chalcogrammus (AP) were hydrolyzed using pepsin, Alcalase, and Protemax. Three enzymatic hydrolytes were obtained and the inhibitory effects of these hydrolytes on the aging-related enzymes tyrosinase, elastase, and collagenase were determined. The results indicated that the pepsin hydrolytes of PO and PA had stronger activities than the other hydrolytes. PO and PA also significantly reduced the intracellular reactive oxygen species levels in and improved the viability of H2O2-treated Vero cells; decreased nitric oxide production by and increased the cell viability of lipopolysaccharide-treated RAW 264.7 cells; and reduced intracellular reactive oxygen species levels and improved the viability of ultraviolet B irradiated HaCaT cells and human dermal fibroblasts. Furthermore, PO and PA remarkably reduced the intra- and extracellular melanin contents of alpha-melanocyte-stimulating hormone-stimulated B16F10 cells. These results demonstrate that PO and PA have potential for use in the cosmetic industry.

A Study on the Evaluation of Vibration Characteristics for Onboard Machinery with Resilient Mountings (선내 탑재 장비용 마운팅 시스템의 진동특성 평가에 관한 연구)

  • Choi, Su-Hyun;Kim, Kuk-Su;Cho, Yeon;Kim, Byoung-Gon
    • Journal of the Society of Naval Architects of Korea
    • /
    • v.39 no.1
    • /
    • pp.73-81
    • /
    • 2002
  • This study is performed to evaluate and design the vibration characteristics of the onboard machinery with resilient mountings. To reduce the vibration revel of onboard machinery with resilient mountings, it is important to evaluate and, if necessary modify vibration characteristics of the resilient mountings. In this study we have developed a program to calculate natural frequencies of the machinery with resilient mountings, forced vibration levels due to internal excitation force of the machinery itself and external excitation forces of the main engine and the propeller, and the force and motion transmissibility of the resilient mountings. The developed program can be also applied to optimal design of the resilient mountings for obtaining a target natural frequency and for achieving a minimum forced vibration level at the center of gravity of the machinery.