Genetic diversity of two Tunisian sheep breeds using random amplified polymorphic DNA (RAPD) analysis

2012 ◽  
Vol 11 (17) ◽  
Author(s):  
Haifa El Hentati
Keyword(s):  
Genetic Diversity ◽  
Rapd Analysis ◽  
Random Amplified Polymorphic Dna ◽  
Sheep Breeds

Detection of genetic diversity in tea (Camellia sinensis) using RAPD markers

Genome ◽  
1995 ◽  
Vol 38 (2) ◽  
pp. 201-210 ◽  
Author(s):  
F. N. Wachira ◽  
R. Waugh ◽  
W. Powell ◽  
C. A. Hackett
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Southeast Asia ◽  
Camellia Sinensis ◽  
Rapd Markers ◽  
Rapd Analysis ◽  
Random Amplified Polymorphic Dna ◽  
Systematic Assessment ◽  
Tree Crop ◽  
Taxonomic Relationships

Camellia sinensis is a beverage tree crop native to Southeast Asia and introductions have been made into several nonindigenous countries. No systematic assessment of genetic variability in tea has been done anywhere. In this study, random amplified polymorphic DNA (RAPD) analysis was used to estimate genetic diversity and taxonomic relationships in 38 clones belonging to the three tea varieties, assamica, sinensis, and assamica ssp. lasiocalyx. Extensive genetic variability was detected between species, which was partitioned into between and within population components. Seventy percent of the variation was detected within populations. Analyses based on band sharing separated the three populations in a manner consistent with both the present taxonomy of tea and with the known pedigrees of some clones. RAPD analysis also discriminated all of the 38 commercial clones, even those which cannot be distinguished on the basis of morphological and phenotypic traits.Key words: genetic diversity, RAPDs, Camellia sinensis.

Comparative analysis of diversity based on morpho-metric and molecular markers in chickpea over different environments

2018 ◽  
Author(s):  
Indu Rialch ◽  
Rama Kalia ◽  
H. K. Chaudhary ◽  
B. Kumar ◽  
J. C. Bhandari ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Molecular Markers ◽  
Rapd Markers ◽  
Agronomic Traits ◽  
Rapd Analysis ◽  
Polymorphic Information Content ◽  
Random Amplified Polymorphic Dna ◽  
Similarity Coefficient ◽  
Breeding Programme ◽  
Metric Traits

Ten morpho-agronomic traits and 80 random amplified polymorphic DNA (RAPD) molecular markers were used to survey genetic diversity in 25 chickpea genotypes. Analysis of variance revealed significant variability among different genotypes for morpho-metric traits. The cluster analysis done using morpho-metric traits grouped 25 genotypes into seven and six clusters in Environment I (Env. I) and Environment II (Env. II), respectively. Three genotypes viz., ICCV-96904, HPG-17, ICCV-95503 and L-HR-1 belonging to diverse clusters were identified divergent and may use in heterosis breeding programme. Of 80 random RAPD markers, 25 were found polymorphic. Three major clusters were identified using 25 polymorphic RAPD markers. The genetic similarity coefficient among genotypes ranged from 0.57 to 0.91. The average polymorphic information content (PIC) for 25 RAPD markers ranges from 0.12 to 0.40. D2-statistic, RAPD analysis and study of genotypes performance revealed sufficient genetic diversity among chickpea genotypes which would be useful in future breeding programme.

scholarly journals Assessment of Genetic Diversity in Cultivated Tomato (Solanum Lycopersicum L.) Genotypes Using Rapd Primers

2013 ◽  
Vol 21 (1) ◽  
pp. 83-89 ◽  
Author(s):  
Saida Sharifova ◽  
Sabina Mehdiyeva ◽  
Konstantinos Theodorikas ◽  
Konstantinos Roubos
Keyword(s):  
Genetic Diversity ◽  
Rapd Analysis ◽  
Diversity Index ◽  
Random Amplified Polymorphic Dna ◽  
Arithmetic Mean ◽  
Similarity Coefficient ◽  
Group Method ◽  
Solanum Lycopersicum L ◽  
Pair Group ◽  
Upgma Cluster Analysis

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.

scholarly journals Use of Random Amplified Polymorphic DNA Markers for Cultivar Identification in Mint

HortScience ◽  
2001 ◽  
Vol 36 (4) ◽  
pp. 761-764 ◽  
Author(s):  
A.L. Fenwick ◽  
S.M. Ward
Keyword(s):  
United States ◽  
Genetic Diversity ◽  
Dna Markers ◽  
Geographical Origin ◽  
Cultivar Identification ◽  
Rapd Analysis ◽  
Random Amplified Polymorphic Dna ◽  
The United States ◽  
Randomly Amplified Polymorphic Dna ◽  
Commercial Oil

Seventeen mint accessions representing the three species grown for commercial oil production in the United States were characterized using randomly amplified polymorphic DNA (RAPD) analysis. The RAPD profiles readily identified the different Mentha species; calculation of genetic distance, based on the number of shared bands, indicated that M. spicata L. is more closely related to M. × gracilis than to M. × piperita. The RAPD profiles also distinguished among eight peppermint accessions of different geographical origin. However, only limited polymorphism was observed among the most widely grown peppermint and Scotch spearmint cultivars. These results indicate a potential lack of genetic diversity in mint cultivars grown for oil in the United States.

scholarly journals Genetic Differentiation of Portuguese Tea Plant using RAPD Markers

HortScience ◽  
2003 ◽  
Vol 38 (6) ◽  
pp. 1191-1197 ◽  
Author(s):  
S. Jorge ◽  
M.C. Pedroso ◽  
D.B. Neale ◽  
G. Brown
Keyword(s):  
Genetic Diversity ◽  
Rapd Markers ◽  
Rapd Analysis ◽  
Random Amplified Polymorphic Dna ◽  
Good Method ◽  
Tea Plant ◽  
Jaccard Coefficient ◽  
Plant Populations ◽  
Arbitrary Primers ◽  
Tea Plants

Random amplified polymorphic DNA (RAPD) analysis was used to estimate genetic similarities between Portuguese Camelliasinensis (L.) O. Kuntze (tea plant) accessions and those obtained from the germplasm collections from the Tea Research Foundation of Kenya and from the National Research Institute of Vegetables, Ornamental Plants, and Tea of Japan. The accessions studied are taxonomically classified as C. sinensis, var. sinensis, var. assamica, or ssp. lasiocalyx. A set of 118 ten-base arbitrary primers was tested, of which 25 produced informative, reproducible, and polymorphic banding patterns. These primers were used to amplify DNA from 71 tea plant accessions and produced a total of 282 bands, of which 195 were polymorphic. The phenotypic frequencies were calculated using Shannon's Index and employed in estimating genetic diversity within tea plant populations. Our study demonstrates that tea plant populations, including the Portuguese tea plants, show considerable genetic variability. From the UPGMA cluster analysis based on a matrix using the Jaccard coefficient, it was possible to distinguish the Portuguese tea plants from the remaining accessions. The RAPD markers discriminated the three C. sinensis varieties. Moreover, within each variety cluster, subclusters formed according to geographic distribution. The RAPD analysis also separated the commercially cultivated tea plants from the Taiwanese wild tea plants. The present results show that RAPD analysis constitutes a good method to estimate genetic diversity within C. sinensis, and to differentiate C. sinensis accessions according to taxonomic variety and geographical distribution.

Genetic diversity of Kensington mango in Australia

1996 ◽  
Vol 36 (2) ◽  
pp. 243 ◽  
Author(s):  
ISE Bally ◽  
GC Graham ◽  
RJ Henry
Keyword(s):  
Genetic Diversity ◽  
Genetic Variation ◽  
Environmental Factors ◽  
Genetic Improvement ◽  
Rapd Analysis ◽  
Random Amplified Polymorphic Dna ◽  
Mangifera Indica ◽  
Genetic Variations ◽  
Oligonucleotide Primers

The genetic diversity of Kensington mangoes (Mangifera indica L.) was investigated using random amplified polymorphic DNA (RAPD) analysis. DNA was extracted from leaves of 27 'Kensington Pride', 2 'R2E2' and 1 seedling. RAPD analysis with 10 oligonucleotide primers allowed the scoring of 107 markers. The R2E2 trees (20% dissimilarity) and the seedling (10% dissimilarity) were distinct from the Kensington Pride. However, there was very little evidence of significant genetic variation within Kensington Pride selections. Fifteen of the selections were identical in all 107 markers. Only 2 selections, WEAN2 and ML2N1, differed by more than 5%. These plants provide the best options for use in genetic improvement of the Kensington Pride mango. Many of the differences found in Kensington mango orchards may be due to environmental factors not genetic variations.

scholarly journals Genetic Diversity of Cherries Characterized by Random Amplified Polymorphic DNA (RAPD) Analysis.

1999 ◽  
Vol 68 (5) ◽  
pp. 984-986 ◽  
Author(s):  
Takehiko Shimada ◽  
Toshiharu Shiratori ◽  
Hiroko Hayama ◽  
Kouichi Nishimura ◽  
Masami Yamaguchi ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Rapd Analysis ◽  
Random Amplified Polymorphic Dna

scholarly journals ECOLOGY AND THE RAPD TECHNIQUES USED TO ASSESS THE GENETIC DIVERSITY IN PTEROLOBIUM HEXAPETALUM, A SCRAMBLING MEDICINAL SHRUB IN MARUTHAMALAI AND CHENNIMALAI HILLS, THE WESTERN GHATS

2019 ◽  
pp. 72-77 ◽  
Author(s):  
SHARMILA S. ◽  
AKILANDESWARI D. ◽  
RAMYA E. K. ◽  
MOWNIKA S.
Keyword(s):  
Genetic Diversity ◽  
Genetic Variation ◽  
Tamil Nadu ◽  
Climatic Factors ◽  
Rapd Analysis ◽  
Random Amplified Polymorphic Dna ◽  
Climatic Conditions ◽  
Individual Bands ◽  
Reproductive Characters ◽  
Two Populations

Objective: To investigate the ecological and genetic diversity, climatic factors, edaphic factors morphological and reproductive characters and RAPD analysis of medicinal plant species Pterolobium hexapetalum in two hills viz., Maruthamalai (arid) and Chennimalai (very arid), which is located in Coimbatore and Erode districts, Tamil Nadu. Methods: The present research was carried out by using a random amplified polymorphic DNA (RAPD) analysis was made to determine the genetic variation between the two populations of the medicinal shrub, Pterolobium hexapetalum in an environmental gradient. Among the five primers tested, the OPN7 (80 %) and OPN17 (71.4 %) produced higher polymorphism was used in RAPD analysis. Results: The results of RAPD analysis showed the presence of 51 individual bands were formed, out of which, 29 were polymorphic bands which showed the existence of genetic variation between populations. A dendrogram was constructed based on Jaccard’s coefficient to determine the degree of genetic relationship among the two populations and analysed. The primers OPN7 and OPN17 were clustered together at a genetic distance level 10. Considering the elevation and proximity, the temperature ranges from 18 °C to 37.6 °C in Maruthamalai hill and 20 °C to 39.4 °C in Chennimalai hill. Conclusion: From the morphoecological studies the results indicated that both arid and very arid climatic conditions showed slight differences in their vegetative and reproductive characters.

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