scholarly journals Genetic diversity in the natural population of threatened fruit- bearing plant species Monotheca buxifolia (Falc.) A.D.

2020 ◽  
Vol 10 (5) ◽  
pp. 44-48
Author(s):  
M. Noor ◽  
U. Nisar ◽  
K.U.K. Muhhamad

Monotheca buxifolia is an ethnomedicinally and economically important threatened fruit bearing plant species in Malakand Division Pakistan. The genetic diversity among the 92 various genotypes of Monotheca buxifolia was carried out using sodium dodecyl sulfate poly acrylamide gel electrophoresis (SDS-PAGE) method. A considerable amount of inter districts genetic diversity (66.70%) was observed among the genotypes of M. buxifolia. Protein profiling was conducted on 12% gel electrophoresis. A total of 6 protein bands were observed in M. buxifolia genotypes. SDS-PAGE practice is a convenient scheme for the examination of both genetic diversity and relationship. Particularly, L-4 and L-5 were monomorphic in the inter districts Monotheca buxifolia genotypes and was recognized as species specific. The remaining other loci were polymorphic. In this investigation, the high inter and intra- districts specific diversity was observed demonstrating SDS-PAGE is an authoritative procedure for categorizing the genetically diverse germplasms in M. buxifolia. The findings from this study could be useful in the identification and selection of suitable M. buxifolia genotypes for future conservation programmes. Today, there is still a need to examine the genetic diversity and protect genetic resources, in particular wild species, for possible benefits in plant conservation programmes. To the best of our knowledge, this is the first ever report that addresses genetic variability in M. buxifolia.


2020 ◽  
Vol 7 (3) ◽  
pp. 314-318
Author(s):  
Muhammad Khalil Ullah Khan ◽  
Noor Muhammad ◽  
Nisar Uddin ◽  
Niaz Ali ◽  
Muhammad Umer ◽  
...  

Alnus nitida (Spach) Endl. is an ethnobotanically important threatened plant species. The genetic diversity among the 50 different genotypes of Alnus nitida was carried out using sodium dodecyl sulfate poly acrylamide gel electrophoresis (SDS-PAGE) characterization. A considerable amount of genetic diversity (90%) was observed among the genotypes of A. nitida. The protein characterization was carried out on 12% gel electrophoresis. A total of 10 protein bands were detected in A. nitida genotypes. SDS-PAGE procedure is a useful method for the investigation of both genetic diversity and phylogenetic relationship. Especially, B-5 was monomorphic in A. nitida genotypes and was considered as species specific. All other bands/loci were polymorphic. These polymorphic bands displayed 12, 16, 72, 88, 2, 44, 84, 54 and 12 percent variation respectively. In the present examination, the high intra-specific diversity was observed representing SDS-PAGE is a powerful tool for determining the genetically diverse germplasms in A. nitida. The results obtained by this study could be helpful in the identification and selection of desired genotypes of Alnus nitida for conservation programmes in future. Today, there is still a need to assess genetic variation and protect genetic resources, especially of wild species for prospective benefits in plant conservation programmes.



2018 ◽  
Vol 26 (1) ◽  
pp. 52-55
Author(s):  
N. Muhammad ◽  
S. F. Wadood ◽  
W. Khan ◽  
N. Ali ◽  
M. Nisar

Intra-specific genetic variation was studied in 28 genotypes of Cleome viscosa L. growing in Swat district, Khyber Pakhtunkhwa, Pakistan. It was found that genotypes showed the utmost allelic variation for leaf upper and lower surface with emerald green (75%), and yellow green (75%) respectively, other leaves lower and upper surfaces were (25%) green and yellow green (26%) respectively. The majority of C. viscosa genotypes were (50%) yellow flowers while others were with (29%) white yellow colour and (21%) dull yellow. Most of the seeds were with black (46%). The protein profiling was carried out on 12% gel electrophoresis; seven reproducible bands with molecular weight ranges from 180 to 10 KDa were detected in C. viscosa, the locus contribution toward genetic disagreement (LCTGD) of C. viscosa was 57%. Notably, L-3, L-4 L-5, was monomorphic in C. viscosa and was treated as species specific. L-1, L-2, L-7 were polymorphic. These bands showed 79%, 4%, 14% and 79% variation respectively. In the current investigation the intra-specific variation was observed limited and alone SDS-PAGE did not determine the high level of intra-specific variation; however, diverse germplasm were suggested to be acquired from various sources.



2015 ◽  
Vol 3 (2) ◽  
pp. 322-329 ◽  
Author(s):  
Gbenga Olorunshola Alege

This study was carried out to investigate the genetic diversity among 23 sesame (Sesamum indicum L.) accessions obtained from different agro-ecological localities from 10 different states across 4 geopolitical zones in Nigeria using evidence from Sodium Dodecyl Polyacrylamide Gel Electrophoresis (SDS-PAGE). Total seed protein of the studied plants resolved on 12% SDS-PAGE showed variations in numbers and intensity of bands among the different sesame accessions. Thirteen (13) major bands were recorded in this study. Lack of unique band and presence of common band (band 7) among the 23 studied sesame accessions indicate some levels of genetic affinity and evidence of common evolutionary origin of the sesame genotypes. This band can therefore be tagged as species specific band for discriminating Sesamum indicum. Cluster analysis grouped the 23 sesame genotypes into two clusters with similarity coefficient ranging from 0.42 to 0.96 which indicates existence of genetic diversity; therefore there is ample opportunity for improving the 23 sesame genotypes. Variations in protein bands observed among the 23 studied plants could be attributed to genomic changes taken place during species diversification. It can be concluded that genetic diversity existed among Nigerian sesame for the improvement of characters of interest. Accessions 9 (YOL), 15(OTT), 22 (OFF) and 23 (JAL) are therefore recommended for used in future breeding programs for the development of improved sesame varieties.Int J Appl Sci Biotechnol, Vol 3(2): 322-329 DOI: http://dx.doi.org/10.3126/ijasbt.v3i2.12734



2018 ◽  
Vol 6 (1) ◽  
pp. 23-31
Author(s):  
Manal Eid

The knowledge of the genetic diversity of barley (Hordeum vulgare) genotypes based on protein polymorphism is very important for breeding programs. The purpose of the current study was to determine the genetic diversity and relationships among ten barley genotypes by using Sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) for protein profiles. A total number of 30 bands with molecular weights ranging from 12 to 148 KD were detected. Out of these, five bands were observed monomorphic. Rest of the bands had shown polymorphism to the extent of 83.3% among the test genotypes. The genetic similarity of the ten genotypes tested varied from 0.26 to 1.00 with an average of 0.51. Cluster analysis divided the ten genotypes into two major clusters comprising four subclusters, which was consistent with the systematic classification of barley done in previous studies. The results of this study indicated that the genotypes of barley could effectively be differentiated based on polymorphism, detected between protein patterns. SDS-PAGE presented a higher differentiation power and better repeatability; thus, could be used as a rapid and reliable method for genetic diversity analysis and laid a solid foundation for future barley breeding.



1992 ◽  
Vol 68 (05) ◽  
pp. 534-538 ◽  
Author(s):  
Nobuhiko Yoshida ◽  
Shingi Imaoka ◽  
Hajime Hirata ◽  
Michio Matsuda ◽  
Shinji Asakura

SummaryCongenitally abnormal fibrinogen Osaka III with the replacement of γ Arg-275 by His was found in a 38-year-old female with no bleeding or thrombotic tendency. Release of fibrinopeptide(s) by thrombin or reptilase was normal, but her thrombin or reptilase time in the absence of calcium was markedly prolonged and the polymerization of preformed fibrin monomer which was prepared by the treatment of fibrinogen with thrombin or reptilase was also markedly defective. Propositus' fibrinogen had normal crosslinking abilities of α- and γ-chains. Analysis of fibrinogen chains on sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) in the system of Laemmli only revealed the presence of abnormal γ-chain with an apparently higher molecular weight, the presence of which was more clearly detected with SDS-PAGE of fibrin monomer obtained by thrombin treatment. Purified fragment D1 of fibrinogen Osaka III also seemed to contain an apparently higher molecular weight fragment D1 γ remnant on Laemmli gels, which was digested faster than the normal control by plasmin in the presence of [ethy-lenebis(oxyethylenenitrilo)]tetraacetic acid (EGTA).



2018 ◽  
Vol 26 (2) ◽  
pp. 058
Author(s):  
Anna P. Roswiem ◽  
Triayu Septiani

<em>Bahan<strong> </strong>baku untuk membuat baso adalah daging hewan, pada umumnya dari daging sapi, ayam, ikan dan babi. Di beberapa daerah di Indonesia terjadi kasus baso tikus. Tujuan penelitian ini adalah menguji ada tidaknya kandungan daging tikus pada produk baso yang dijual di pasar Cempaka Putih-Kecamatan Kramat Jakarta Pusat dan di pedagang baso atau mie baso di sekitar kampus Universitas YARSI Jakarta. Daging adalah protein salah satu metode untuk mengidentifikasi protein adalah metode Sodium Dodecyl Sulphate Polyacrylamide Gel Electrophoresis (SDS-PAGE).<strong> </strong>Hasil penelitian menunjukkan bahwa dari 6 sampel baso terindikasi ada 2 sampel baso dengan nomor 1 dan 5 yang dibuat dari campuran daging sapi dan tikus; ada 1 sampel baso dengan nomor 6 yang terbuat dari daging tikus; dan 2 sampel baso dengan nomor 2 dan 3 yang terbuat dari campuran sapi  dan babi, dan hanya 1 sampel baso dengan nomor sampel 4 yang benar-benar terbuat dari daging sapi.</em>



2014 ◽  
Vol 989-994 ◽  
pp. 1020-1024
Author(s):  
Nan Nan ◽  
Xi Jing Liu

Radix Isatidis is a traditional Chinese medicine for treatment of influenza and inflammation in China. In this paper, in order to study the degradation situation of Radix Isatidis polypeptide in artificial gastrointestinal environment, the SDS-PAGE (Sodium dodecyl sulfate-polyacrylamide gel electrophoresis) method was used to detect the degradation of Radix Isatidis polypeptide in artificial intestinal juice and gastric juice, and it showed that Radix Isatidis peptides could be degradated to different degrees. HPLC (High Performance Liquid Chromatography) was used to determine the change of peptides degradation, and it indicated that free amino acid levels did not change significantly. The result after degradation was also detected by BCA method, and it showed that there were still a large number of polypeptides in the liquid. From this experiment we can come to this conclusion that Radix Isatidis polypeptides in artificial gastrointestinal juice mostly degraded into a series of different molecular weight peptides.



2008 ◽  
Vol 5 (2) ◽  
pp. 121-126
Author(s):  
Peng Dong-Hai ◽  
Zhou Chen-Fei ◽  
Qiu De-Wen ◽  
Zhou Kang ◽  
Ruan Li-Fang ◽  
...  

AbstractThe geneap36encoding a protein elicitor fromAlternariasp. was fused downstream of theslh(S-layer homology) motif ofBacillus thuringiensisS-layer protein genectc. The recombinant gene was then transferred intoB. thuringiensisplasmid-free derivative strain BMB171. Sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) showed that the SLH–Ap36 fusion protein was expressed inB. thuringiensisBMB171. After tomato (Lycopersicum esculentum) leaves were treated for 90 min with the recombinant strain cultured at 28°C for 24 h, the activity of peroxidase and the amount of proline of tomato leaves were increased to 57.14% and 131.59%, respectively, compared to the control, and after the tomato leaves were treated with the cultured recombinant strain for 4 days, the activity of phenylalanine ammonia lyase was also higher than that in the control. Furthermore, tubers of treated potato (Solanum tuberosum) plants showed higher resistance to rot disease caused byErwinia corotovoraSCG1 compared to the control treatments.



Blood ◽  
1996 ◽  
Vol 87 (4) ◽  
pp. 1377-1384 ◽  
Author(s):  
PK Schick ◽  
J Walker

The acylation of megakaryocyte proteins was studied with special emphasis on the myristoylation and palmitoylation of the glycoprotein (GP) Ib complex. Guinea pig megakaryocytes were purified and separated into subpopulations at different phases of maturation. Cells were incubated with [3H]myristate, [3H]palmitate, or [3H]acetate to study endogenous protein acylation. Cycloheximide was used to distinguish between cotranslational and posttranslational acylation and hydroxylamine to distinguish between thioester and amide linkages. After incubations, delipidated proteins or GPIb complex subunits, immunoprecipitated with PG-1, AN-51 or FMC-25 monoclonal antibody, were separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and assessed by fluorography. Radiolabeled fatty acids bound to GPIX and GPIb were also analyzed by high pressure liquid chromatography (HPLC) and scintillation spectrometry. With [3H]myristic acid and [3H]acetate, GPIX was found to be a major myristoylated protein in megakaryocytes and CHRF-288 cells. Myristic acid was linked to GPIX by an amide bond, and this process occurred cotranslationally. With [3H]acetate, GPIb was primarily palmitoylated, but with [3H]myristate, GPIb was acylated with about equal mounts of myristic acid and palmitic acids. Both fatty acids were linked to GPIb by thioester bonds, and acylation was posttranslational. The myristoylation of GPIX while the palmitoylation of GPIb occurred throughout megakaryocyte maturation. Myristoylation and palmitoylation may have different functions relevant to the assembly of the GPIb complex in megakaryocytes.



2020 ◽  
Vol 7 (2) ◽  
pp. 214
Author(s):  
Zetty Amirah Zulkifli ◽  
Zaidah Rahmat

Moringa oleifera is widely known as multipurpose tree since all of its parts confer multiple functions. The leaf is highly favourable among consumers while the petiole is mostly wasted. There are numerous studies on the flavonoid and antioxidant property of the stem and twig. However, study on the petiole has never been done. There-upon, this study was conducted to develop protein profiling of the petiole. In this study, 6 different protein extraction methods were tested on the fresh petiole before its protein quantity and quality were checked via Bradford assay and Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis (SDS-PAGE) respectively. The in-solution digestion was then done prior to LC-MS/MS analysis. The protein electrophoretic pattern from the SDS-PAGE proves that method 6 using Tris HCl buffer with incorporation of dithiothreitol (DTT) and phenylmethylsulfonyl fluoride (PMSF) confers the best quality of protein. It produced the highest number of visible individual bands compared to other methods. Meanwhile, 93 proteins were successfully identified via LCMS analysis where the protein, signal response and carbohydrate metabolism categories confer the highest percentage. High quality and content of the protein extracted from the petiole including the antioxidant, anticancer and antidiabetic protein identified suggested that consuming this part of the plant could enhance nutrients of human body.



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