scholarly journals Comparison of electrophoretic protein profiles of Brassica rapa sub-species brown sarson through SDS-PAGE method

Genetika ◽  
2017 ◽  
Vol 49 (1) ◽  
pp. 95-104 ◽  
Author(s):  
Sohail Jan ◽  
Shinwari Khan ◽  
Malik Rabbani ◽  
Haris Khurshid ◽  
Muhammad Ibrahim ◽  
...  

Estimation of protein based variability among different Brassica sub-species is important for crop improvement. In present study total seed protein based variation among brown sub-specie of B. rapa was studied. Twenty different brown types? genotypes were analysed through Sodium Dodecyl Sulphate Poly Acrylamide Gel Electrophoresis (SDS-PAGE) method. The small, medium and large sizes proteins were noted. A total of 12 bands were obtained in which 10 (83.33%) are highly polymorphic while the rest two (15.38%) are monomorphic. The protein size base polymorphism was divided into different groups on the basis of molecular weight that ranges from ~10 kDa to ~180 kDa. The data of variable proteins were analysed through Unweighted Pair Group Method with Arithmetic Mean (UPGMA) method, which clustered all genotypes into four main cluster groups. The cluster I and II, III and IV consisted 3, 3, 6 and 10 genotypes respectively. The similarity coefficient values (40 to 96%) were calculated among different genotypes. The maximum similarity coefficient (96%) was recorded among genotypes Br-607, Br-560, and between Br-589 and Br-607 respectively. Our study showed maximum protein based diversity among brown sub-species of B. rapa which may serve as model to search protein based variation in other important plants sub-species.

2012 ◽  
Vol 61 (4) ◽  
pp. 305-310 ◽  
Author(s):  
ADAM WAŚKO ◽  
MAGDALENA POLAK-BERECKA ◽  
MICHAŁ KALITA

In this study sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) profiles were analysed and differences were confirmed by a unweighted pair group method with arithmetic average (UPGMA) analysis between bifidobacterial species, such as B. infanis ATCC1567, B. bifidum Bb-12, B. longum KN29, B. catenulatum KD14, and B. animalis BI30. Two dimensional electrophoresis separation profiles were compared, and the most characteristic spots were characterized by liquid chromatography-tandem mass spectrometry (LC-MS/MS). We propose proteins extracted from intact cells as an additional trait for bifidobacteria characterization, together with molecular techniques, which can be used to analyze bacterial protein polymorphism and to distinguish among species.


Biomédica ◽  
2020 ◽  
Vol 40 (2) ◽  
pp. 404-411
Author(s):  
Arlid Meneses ◽  
Cristian Camilo Rodríguez ◽  
Yazmín Suárez ◽  
Julio César Carranza ◽  
Gustavo Adolfo Vallejo

Introducción. Las especies Rhodnius (Hemiptera: Reduviidae: Triatominae) están conformadas por insectos hematófagos vectores de Trypanosoma cruzi, agente etiológico de la enfermedad de Chagas, y T. rangeli, parásito infectivo pero no patógeno para el vertebrado. El estudio de la diversidad proteica de la saliva de estos insectos permite la obtención de perfiles electroforéticos unidimensionales característicos de algunas especies de triatominos. Sin embargo, el reporte de los patrones electroforéticos de proteínas salivales de las especies de Rhodnius ha sido escaso.Objetivo. Hacer un análisis comparativo de los perfiles electroforéticos unidimensionales de las proteínas salivales de R. colombiensis, R. pallescens, R. pictipes, R. prolixus y R. robustus.Materiales y métodos. Se obtuvieron los perfiles electroforéticos de la saliva de las especies en estudio mediante electroforesis en gel de poliacrilamida con dodecilsulfatosódico (Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis, SDS-PAGE) y se construyó un fenograma mediante el método UPGMA (Unweighted Pair Group Method Using Arithmetic Averages).Resultados. Los perfiles electroforéticos de las proteínas solubles de saliva presentaron bandas en un rango de masa aproximado de 15 a 45 kDa, los cuales permitieron diferenciar las cinco especies estudiadas. El fenograma reveló la existencia de dos grupos principales: uno conformado por los grupos cisandinos Pictipes y Prolixus y otro constituido por el grupo transandino Pallescens.Conclusiones. Existen diferencias en los perfiles electroforéticos de las proteínas salivales entre R. colombiensis, R. pallescens, R. pictipes, R. prolixus y R. robustus, cuya variabilidad permitió construir un fenograma congruente con los grupos del género Rhodnius.


Author(s):  
REENA PARIDA ◽  
SUJATA MOHANTY ◽  
SANGHAMITRA NAYAK

Objective: India has been a producer of a large number of aromatic medicinal plants which serves as a valuable genetic resource for future quality improvement to meet the ever-growing demand of human essential products. Thus, an urgent need arises for germplasm conservation of these high yielding varieties to help the pharmaceutical and other industries. For this understanding, the population structure is essential in order to explore their genetic identification by fingerprinting and molecular characterization. Methods: In the present study DNA was isolated using modified Cetyl Trimethyl Ammonium Bromide (CTAB) method and Polymerase Chain Reaction (PCR) was performed according to standardized method along with its data analysis. This study was undertaken to characterize the highly medicinal Kaempferia galanga collected from 4 different populations of Odisha using the molecular markers as Random Amplified Polymorphic DNA and Inter-Simple Sequence Repeats for the first time. Results: A dendrogram constructed through Sequential Agglomerative Hierarchical and Nested (SAHN) clustering and Unweighted Pair Group Method with Arithmetic mean (UPGMA) analysis showed an average similarity of 0.993 ranging between 0.967 to 1.000. Jaccard’s similarity coefficient of combined markers segregated the genotypes into two main clusters, 1 with six samples and the others at 0.98 similarity coefficient. Conclusion: Hence, the molecular analysis could be further used for the identification of important novel gene present in Kaempferia galanga which can be utilized for future crop improvement as well as pharmacological activities.


2010 ◽  
Vol 20 (1) ◽  
pp. 91-99
Author(s):  
R. C. Jena ◽  
K. C. Samal ◽  
P. K. Chand ◽  
B. K. Das

Randomly amplified polymorphic DNA (RAPD) markers were used for the genetic variation and relationship analysis among 12 Mango (Mangifera indica L.) germplasm. Five oligonucleotide primers were employed to amplify DNA from 12 cultivars. PCR amplification with five primers generated 45 reproducible, clear and distinct bands, out of which 41 bands are considered polymorphic and the remaining four fragments (8.88%)  monomorphic. The size of amplified product ranged from 200 (RPI-5) to 3000 base pairs (RPI-1) with an average of nine bands per primer. The average polymorphism in all the 12 cultivars using the five primers was found to be 91.91%. Among all the primers RPI-2 and RPI-4 have shown 100% polymorphism while RPI-5 was found to be least polymorphism (81.81%). One specific band, namely was found with RPI-5, in a particular variety, Chiratpuri. The UPGMA (Unweighted Pair Group Method of Arithmetic Mean) dendrogram based on Jaccard’s similarity coefficient segregated the 12 mango germplasm into two clusters. Langra, Chiratpuri, Pravasankar, Alphanso, Sindhu and Kesar formed one cluster and rest six mango germplasm grouped together into another cluster. Sindhu and Alphanso cultivar pair was very close to each other with highest similarity coefficient (0.78), which was comparatively higher than all other cultivar pairs. On the other hand, Pravasankar and Neelam cultivar pair was more distinct to each other with the lowest intervarietal similarity coefficient 0.38. This study showed clearly that cultivars from Orissa unveiled maximum diversity and indicated the potential of RAPD markers for the identification of management of mango germplasm for breeding purposes.  Key words: Molecular characterization, Mango germplasm, Dversity  D.O.I. 10.3329/ptcb.v20i1.5972 Plant Tissue Cult. & Biotech. 20(1): 91-99, 2010 (June)


Author(s):  
Ananya Panda ◽  
Swapan K. Tripathy

Total seed storage protein profiles of 74 mungbean land races, three wild accessions and a popular variety ‘Jyoti’ of Odisha were analysed by Sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE). 32 genotypes could be clearly identified based on genotype-specific seed protein fingerprints while rest of the test genotypes were categorized into eight protein types. Genotypes included in each protein type had 100% homology and some of these could be duplicates. In this pursuit, a few specific polypeptide markers have been detected for identification of the land races/ genotypes. Dendrogram based on electrophoretic data clustered the genotypes into seven groups at 70% phenon level. Paralakhemundi local, Samarjhola local and Phulbani local-D; and three wild accessions (TCR 20, TCR 213 and TCR 243) were comparatively divergent from other genotypes. Besides, Jyoti, Kalahandi local 2A, Sikri local, kodala local A and TCR 20 were identified to be protein rich with high seed yield. TCR 20 being morphologically similar to mungbean, moderately high protein content and high yielding as well as resistant to drought and bruchids; it may serve as a valuable source genotype in recombination breeding


2009 ◽  
Vol 55 (2) ◽  
pp. 117-125 ◽  
Author(s):  
V. Vujanovic ◽  
S. Vidovic ◽  
M. R. Fernandez ◽  
P. Daida ◽  
D. Korber

A total of 91 isolates of Fusarium avenaceum were regrouped into 15 phenotypes and 10 vegetative compatibility groups showing specific one-dimensional sodium dodecyl sulphate polyacrylamide gel electrophoresis (1-D SDS–PAGE) protein profiles and less-specific internal transcribed spacer rDNA profiles. Each isolate possessed reproducible signature protein bands. Indeed, the unweighted pair group method with arithmetic averages clustering revealed that the protein profile of each group of isolates correlated with fungus virulence. The use of SDS–PAGE offers a simple and sensitive technique for routine differentiation between pathogenic and nonpathogenic isolates within unknown F. avenaceum populations. The discovery has significant implications for risk assessment of cereal yield to ensure food and feed safety. This low-cost approach has the potential to be optimized and extended to a broad spectrum of Fusarium head blight pathogens.


2013 ◽  
Vol 21 (1) ◽  
pp. 83-89 ◽  
Author(s):  
Saida Sharifova ◽  
Sabina Mehdiyeva ◽  
Konstantinos Theodorikas ◽  
Konstantinos Roubos

Abstract Random Amplified Polymorphic DNA (RAPD) analysis was carried out on 19 Azerbaijan tomato genotypes, both cultivars and local populations. A total of 26 amplified products were revealed by 6 primers. The genetic similarity among evaluated genotypes ranged from 0.188 to 1.000. The lowest similarity was observed between cultivars ‘Azerbaijan’ and ‘Shakar’ (0.188), while the highest between ‘Elnur’ and ‘Garatag’ (1.000). The Unweighted Pair Group Method with Arithmetic Mean (UPGMA) cluster analysis based on Jaccard’s similarity coefficient divided genotypes into four main groups. The first group was the largest and consisted of 12 genotypes, while the fourth group was the smallest consisted of 1 genotype only. The most polymorphic primer was OPB-18 that presented a genetic diversity index of 0.823, while the least informative was primer OPG-17 with an index of 0.349. The average genetic diversity calculated from RAPD data was 0.665.


2016 ◽  
Vol 25 (2) ◽  
pp. 223-229 ◽  
Author(s):  
Kuasha Mahmud ◽  
KM Nasiruddin ◽  
MA Hossain ◽  
L Hassan

Sugarcane somaclones and their sources varieties were analyzed by RAPD molecular markers to check the variation at molecular level based on 1.4% agarose gel electrophoresis (AGE). Six RAPD primers generated 237 bands with average 39.5 varied from 15 to 63 with size ranging 145 - 1000 bp among the four sugarcane varieties and their 12 somaclones. Genetic diversity or polymorphism information content (PIC) value ranged from 0.39 to 0.50 for all loci across the 4 varieties and their 12 somaclones based on RAPD markers. Dendrogram based on linkage distance using unweighted pair group method of arithmetic means (UPGMA) based on 6 RAPD primers indicated segregation of the 4 sugarcane varieties and their somaclones into two main clusters at linkage distance 36. Variety Isd 39 was observed in main cluster C1 while its (Isd 39) somaclones and other varieties (Isd 37, Isd 38 and Isd 40) and also their somaclones were found in main cluster C2 having different sub-clusters. Theirfore, it may be concluded that RAPD markers can be used for identification of somaclonal variation and the relationship between sources varieties and their somaclones.Plant Tissue Cult. & Biotech. 25(2): 223-229, 2015 (December)


2020 ◽  
Vol 42 ◽  
pp. e45088
Author(s):  
Hugo Zeni Neto ◽  
Luiz Gustavo da Mata Borsuk ◽  
Luiz Renato Frederico dos Santos ◽  
Henrique Sanches Angeli ◽  
Guilherme Souza Berton ◽  
...  

The success of sugarcane (Saccharum spp.) breeding programs depends on the choice of productive parent lines that have a high industrial yield and are genetically divergent. This study assessed the genetic divergence and population structure of sugarcane accessions that are the parents of the RB05 Series of the Sugarcane Breeding Program of Brazil. The DNA of 82 accessions was evaluated using 36 simple sequence repeat markers. The Jaccard similarity coefficient and Unweighted Pair Group Method with Arithmetic Mean clustering method were used to generate a cluster that was divided into 17 distinct groups derived from probabilistic models. The similarity coefficient used in both cases showed that the degree of similarity varied from 0.4716 (RB971551 x RB965586) to 0.9526 (RB936001 x SP89-1115), with a mean of 0.8536. This result demonstrates a high similarity between the 82 accessions and confirms Wright’s F statistic (0.125), which indicates moderate genetic variability. The less-similar crosses suggest that breeders seek a higher number of crosses using cultivar RB965586, highlighting the RB971551 x RB965586 and RB965586 x RB855511 crosses. The results demonstrate that crosses such as RB936001 x SP89-1115 and RB945954 x RB896342 should be avoided because of their high genetic similarity.


2012 ◽  
Vol 5 (1) ◽  
pp. 44-50 ◽  
Author(s):  
Chathuri Mudalige ◽  
ST Girisha ◽  
VB Raghavendra ◽  
MH Niranjan ◽  
K Ravikumar ◽  
...  

Coleus forskohlii belong to family lamiaceae is one of the commercial plants grown extensively in the country, the chemical found in the Coleus which has both medicinal application and gives great economy to the industrial organizations. Unfortunately, these plants are being highly succumbed to serious diseases like wilt and root rot caused by a fungus, hence the growers and industrialists are facing severe problem in safeguarding this crop in the field irrespective of the agro climatic conditions. Root rot disease, is one of the major diseases of Coleus forskohlii which, is caused by Macrophomina phaseolina, Pathogen variability was studied at both morphological and molecular level using cultural characteristics and Rapid Amplification of Polymorphic DNA (RAPD) analysis respectively. Totally thirty two isolates were isolated from roots of Coleus forskohlii. In RAPD 165 bands were obtained out of them 121 bands (73.3%) were polymorphic with a similarity coefficient of 0.48-0.66. Clusters analysis of RAPD data when Unweighted Pair Group Method with Arithmetic Mean (UPGMA) Tree constructed using NTSYS, it showed 6 groups. Among them two were major clusters and 4 were minor clusters with similarity coefficient 0.48-0.66. The pathogenicity of the isolates was tested on Coleus forskohlii plants. Analysis of the pathogenicity tests results revealed that the isolates grouped under two major clusters which were different from the one obtained using RAPD data. The results indicate that the data from RAPD analysis and Pathogenicity tests do not correlate with each other.DOI: http://dx.doi.org/10.3126/ijls.v5i1.5598 International Journal of Life Sciences Vol.5(1) 2011 44-50


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