scholarly journals Using RAPD markers for genetic analysis in Three Species of Datura in Iraq

2019 ◽  
Vol 23 (10) ◽  
pp. 27
Author(s):  
Lubna Amir Altiaee ◽  
Akeel H ALassi ◽  
Thammer A. Zahwan

The study amis to develop the evidence genetic of active substances for several kinds of the Datura plant (Datura sp.), So it was procedure steps to isolated the Genomic DNA from leaf of Datura specis    it is (Datura metel, Datura innoxia and Datura stramonium).(  Has been used 51 primers in the experiments of the RAPD markers, but did not show 17 primers including any amplified band while showed in genomic in Datura plants, and 34 primers show results Differentiated locations where all the primers gave a differentiated binds Polymorphic band These results have been invested to study genetic variability among the species involved in study.   http://dx.doi.org/10.25130/tjps.23.2018.165

1995 ◽  
Vol 120 (4) ◽  
pp. 681-686 ◽  
Author(s):  
C.M. Ronning ◽  
R.J. Schnell ◽  
D.N. Kuhn

RAPD markers have been used successfully in genetic analysis of several crop plants. This method poses difficulties with a highly heterozygous species such as Theobroma cacao because of the dominant phenotypic expression of bands. A backcross family derived from ctultivars Catongo and Pound 12 was analyzed to determine the efficacy of RAPD markers in analyzing cacao populations. A preliminary screen of the parents and the F1 plant used as the backcross parent was conducted with 180 RAPD primers; of these, 26% were polymorphic and reproducible and produced 104 storable loci. Genomic DNA from 54 individuals of the backcross population was then amplified with these primers; 68.3 % of the loci segregated as expected in a Mendelian fashion. Separation of RAPD fragments on acrylamide revealed an additional polymorphic locus from one primer that was indistinguishable on agarose. The results demonstrated that RAPD markers can be used to study the cacao genome.


2005 ◽  
Vol 48 (4) ◽  
pp. 511-521 ◽  
Author(s):  
Leandro Eugênio Cardamoni Diniz ◽  
Claudete de Fátima Ruas ◽  
Valdemar de Paula Carvalho ◽  
Fabrício Medeiros Torres ◽  
Eduardo Augusto Ruas ◽  
...  

The genetic variability of 40 accessions of_C. arabica was evaluated using a combination of the random amplified polymorphic DNA (RAPD) technique and restriction digestion of genomic DNA. The genetic variability and the relatedness among all accessions were initially evaluated using 195 RAPD primers which revealed a very low level of genetic variation. To improve the efficiency in the detection of polymorphism, the genomic DNA of all accessions were submitted to digestion with restriction endonucleases prior to PCR amplification. A total of 24 primers combined with restriction digestion of DNA rendered 318 bands, of which 266 (83.65%) were polymorphic. The associations among genotypes were estimated using UPGMA-clustering analysis. The accessions were properly clustered according to pedigree and agronomic features. The ability to distinguish among coffee accessions was greater for RAPD plus restriction digestion than for RAPD alone, providing evidences that the combination of the techniques was very efficient for the estimation of genetic relationship among_C. arabica genotypes.


2010 ◽  
Vol 53 (2) ◽  
pp. 375-387 ◽  
Author(s):  
Luciana do Valle Rego Oliveira ◽  
Ricardo Tadeu de Faria ◽  
Claudete de Fátima Ruas ◽  
Paulo Maurício Ruas ◽  
Melissa de Oliveira Santos ◽  
...  

In this work, RAPD molecular markers were used to access the genetic variability and to study the inter and intraespecifc relationship in a group of 37 species, including 56 individuals. A total of 15 RAPD primers were selected for DNA amplification. From a total of 221 bands analyzed, 209 (95%) were polymorphics. The level of interespecifc genetic similarity ranged from 37% between Catasetum complanatum and Catasetum laminatum to 83% between Catasetum triodon and Catasetum uncatum. The intraspecifc genetic similarity varied 88% for the individuals of Catasetum triodon to 93% between the individuals of Catasetum atratum and Catasetum macrocarpum. These results would contribute to understand the genetic relationship in Catasetum, to define the strategies to establish a germplasm core collection for the genus and to provide support for breeding programs.


2013 ◽  
Vol 6 (1-2) ◽  
pp. 51-63
Author(s):  
SM Faisal ◽  
MS Haque ◽  
KM Nasiruddin ◽  
MM Islam ◽  
MA Shrafuzzaman ◽  
...  

Genetic variability among the genotypes of any species could be utilized for its improvement. PCR-based Random Amplified Polymorphic DNA (RAPD) technique was used to determine the genetic diversity and relationship among 10 cucumber varieties and genotypes. Five decamer primers were used to amplify genomic DNA and the primers yielded a total of 54 bands of which 36 bands were polymorphic and 18 bands were monomorphic. The UPGMA dendrogram based on Nei’s (1972) genetic distance indicated segregation of 10 cucumber varieties and genotypes into two main clusters. Variety Joti alone grouped in cluster 1 while variety Green Master, Shahi-50, Shikha, Shila, Shital, Naogaon-5, Shohag-50, Giant Long and genotype CS-043 grouped in cluster 2. Variety Shila was very close to variety Shital with the least genetic distance (0.1712). The highest genetic distance (0.5352) was found between Joti and Naogaon-5. DOI: http://dx.doi.org/10.3329/cujbs.v6i1-2.17081 The Chittagong Univ. J. B. Sci.,Vol. 6(1&2):51-63, 2011


2011 ◽  
Vol 74 (1) ◽  
pp. 35-42 ◽  
Author(s):  
Tadeusz Kowalski ◽  
Wojciech Kraj

On the basis of morphological features and RAPD markers the strains of <em>Chalara ovoidea</em> found in Poland on planks and on stems of beech trees were identified. As reference strains the cultures taken from CBS Utrecht were employed; they were cultures CBS 354.76 and CBS 136.88. The amplification of genomic DNA was conducted using 10 primers (OPA01-OPA10), 7 of which (OPA01-OPA05, OPA09, OPA10) gave positive results. In total 42 fragment of DNA (bands) were obtained. In case of primers OPA03, OPA04, OPA05, and OPA09 all obtained fragments for analyzed strains were fully monomorphic. This means, that no genetic variability was found using the above mentioned primers. Low genetic variability was ascertained in the analysis of frequency of occurrence of DNA fragments using other primers, namely OPA01, OPA02, and OPA10. The matrix and dendrogram of genetic affinities among different strains of <em>Chalara</em>, calculated using the Jaccard’s similarity coefficient suggested, that the most similar strains are the ones coming from Poland (HMIPC 16136 and HMIPC16664) as well as the strain CBS 136.88, while somewhat different from them is the strain CBS 354.76. To determine, how exactly did the dendrogram reflect genetic affinity among analyzed strains, the Mantel’s test was employed. The correlation coefficient amounted to 0.78, suggesting that the strains under study had been grouped properly. The results showed, that the fungal strains found in southern Poland represent the species Chalara ovoidea.


2020 ◽  
Vol 42 (1) ◽  
Author(s):  
Silvia Correa Santos ◽  
Raquel dos Santos Carvalho ◽  
Livia Maria Chamma Davide

Abstract The genus Anacardium presents nine species, of these, three have sub-bush size, common in the Cerrado of the Center-West of Brazil. The objective of this work was to evaluate the genetic variability of the species, collected in eleven provenances, using RAPD markers. Genomic DNA from 122 accessions was extracted and amplified with 25 decamer primers. The results indicated polymorphism, ranging from 77.71% to 96.18%. The distribution of genetic diversity among and within populations shows that 27.14% of the variability is found between populations and 37.44% within the populations, suggesting the existence of genetic variability that may be related to the reproductive strategies adopted by the species throughout its evolution. The index of variation within the provenances (93.36%) was higher than the index found among populations (6.64%). Molecular analysis indicated that there is genetic divergence between and within the studied populations of Anacardium humile A. St. - Hill. The origin of Itajá-GO presented the highest genetic diversity, presenting the highest values of genetic diversity index, phenotypic diversity and higher percentage of polymorphic loci.


2021 ◽  
Author(s):  
Asma Aziz ◽  
Farhat Jabeen ◽  
Muhammad Nafees ◽  
Adiba Khan Sehrish ◽  
Inayat Ullah ◽  
...  

Abstract Physical barriers like head works, dams barrages are main cause of fragmentation and declining of freshwater fish population in natural habitat. Present study focused on RAPD marker technique to assess the genetic variability among and between the populations of endangered sperata sarwari (Singharee) inhabited in the Indus drainage system of Punjab. Total eight populations (80 speciemen) of S. sarwari were collected from the up and downstream of four Rivers (Chenab, Jhelum, Ravi and Indus) of Punjab. Genomic DNA isolated from muscle tissue of adipose side and ten RAPD marker were used, which produced 50 scorable bands with average band ranging from 250–1050 bp which used for further genetic analysis of S. sarwari. Downstream Indus population of S. sarwari showed highest values of observed alleles (na), effected alleles (ne), Nei’s diversity (h), Shannon index (I) and polymorphism which indicated that downstream Indus population was more genetically variant. The genetic variability (0.5124) and genetic flow (0.4758) among the eight population S. sawari was observed. The up and downstream population showed the highest genetic distance (0.5738) and lowest genetic similarities (0.5634) which indicated complete isolation of Ravi population from other six population. Dendrogram showed that up and downstream Ravi population was completely isolated from the other six up and down stream population of S. sarwai. Overall results indicated that the presence of high fragmentation in River Ravi caused the destruction of habitat and decline in population of S. sarwai in the River Ravi.


2010 ◽  
Vol 10 (3) ◽  
pp. 211-217 ◽  
Author(s):  
Michelly de Cristo Araújo ◽  
Doriane Picanço Rodrigues ◽  
Spartaco Astolfi Filho ◽  
Charles Roland Clement

Peach palm is a native Amazonian fruit species with broad genetic diversity in its wild and domesticated populations. This study completed the molecular characterization and genetic analysis of the accessions in the Peach Palm genebank, Brazil, using RAPD markers. Eight primers generated 132 markers, of which 128 were polymorphic. Average heterozigosity was 0.35, with 95.5% polymorphism. The genetic variability within the landraces (H S) was 0.32, while genetic divergence (G ST) was 0.09 among the four well-represented landraces. The average gene flow was 5.0, with high gene flow between the Solimões and Pampa Hermosa (Nm=10.07), and between the Putumayo and Solimões (Nm=10.73) landraces, all western landraces. The dendrograms of the Nei's and Rogers' genetic distances of the well-represented landraces presented similar groupings to previous analyses, with the Solimões, Putumayo and Pampa Hermosa landraces grouped together in western Amazonia, and distant from the Pará landrace in central and eastern Amazonia.


2017 ◽  
Vol 23 (2) ◽  
Author(s):  
SUNITA BORDE ◽  
ASAWARI FARTADE ◽  
AMOL THOSAR ◽  
RAHUL KHAWAL

Ptychobothridean genera like Senga and Circumoncobothrium are the common parasites of fresh water fishes. The genotypic study of these parasites was taken by RAPD. The RAPD profile of these two parasites were not similar to each other as depicted by the band pattern in picture. These results suggest the presence of inter-specific polymorphism among cestode parasites of two different genera for RAPD analysis. The present study demonstrated that genetic differentiation of cestode parasites could be accomplished on the basis of genomic variation with polymorphic band pattern using RAPD. All the detected bands (PCR product) were polymorphic and band size ranged from 500-5000 bp in length. The RAPD of profiles using GBO-31, GBO-32, GBO-33, GBO-34, GBO-35 and GBO-36. Primers were able to characterize inter-specific polymorphism among the two genus ( Senga and Circumoncobothrium ). Genetic analysis suggests that Senga and Circumoncobothrium show genetic diversity with respect to RAPD patterns using all the six primers used for the present study. The genetic distance between the analyzed genuses ranged from 0.14 to 0.80. The differentiation of the two parasites on the basis of genetic markers could greatly facilitate study on the biology of these parasites.


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