scholarly journals Molecular Diversity Analysis of Somaclonal Variants of Potato (Solanum tuberosum L.) by Random Amplified Polymorphic DNA Markers

Author(s):  
Md Shamsuzzaman ◽  
Debu Kumar Bhattacharjya ◽  
Md. Shariful Islam ◽  
Md. Ekramul Hoque

Aims: An experiment was conducted to analyze the DNA fingerprinting and genetic diversity of nine potato (Solanum tuberosum L.) somaclonal variants and three check varieties. Place and Duration of Study: The experiment was carried out at the Biotechnology laboratory of the Department of Biotechnology, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh during November, 2013 to December, 2014. Methodology: The somaclonal variants investigated were SIP-3, SIP-5, SVP-6, SVP-18, SVP-19, SVP-25, SVP-55, SVP-56 and SVP-68, while the check varieties were Cardinal, Diamant and Asterix. Six RAPD primers were used to perform PCR reaction after genomic DNA was extracted from young leaves. Results: The selected 6 primers produced total 54 distinct and differential amplified DNA bands of size range 88 bp to 3265 bp, where 47 bands (~87%) were polymorphic and 7 bands (~13%) were monomorphic. The pair-wise inter-genotype similarity indices were ranged from 61.59% to 93.55% with an average of 74.31%. The Nei’s genetic distance among 12 potato genotypes was estimated from 0.0972 to 0.6217 whereas, genetic identity was between 0.5370 and 0.9074. Here, the distantly linked accessions among the somaclonal variations with check varieties were SVP-6 (to Cardinal and Diamant) and SVP-25 (to Asterix). In addition, the UPGMA dendrogram segregated the 12 potato genotypes into two broad clusters containing 8 and 4 genotypes, respectively. Furthermore, the dendrogram also displayed the highest genetic distance between SVP-6 vs SVP-68 genotype pair. Conclusion: Significant relationship and diversity were found among the studied 12 genotypes. This genetic diversity among the potato genotypes would be utilized for further potato improvement.

2016 ◽  
Vol 6 (2) ◽  
Author(s):  
Yefta B Kawengian ◽  
Edy Lengkong ◽  
Jeany Mandang

Abstrak Pengembangan tanaman kentang (Solanum tuberosum L.)  unggul untuk menunjang kebutuhan produksi kentang yang terus meningkat membutuhkan tersedianya informasi genetik tanaman kentang yang ada. Informasi keragaman genetik dapat diperoleh menggunakan penanda molekuler RAPD yang dapat mendeteksi keragaman sampai pada tingkat DNA, baik pada daerah penyandi atau bukan penyandi protein dengan cara mendeteksi polimorfik sekuens nukleotida. Informasi yang diperoleh akurat karena tidak dipengaruhi lingkungan.  Penelitian ini bertujuan untuk menganalisis keragaman genetik dari kentang kultivar Superjhon, Atlantik, Dessire, Nadia dan Granola menggunakan penanda RAPD.  Hasil penelitian menunjukkan bahwa dari 14 primer acak yang digunakan hanya 7 yang memberikan pola pita DNA yang polimorfik dan 16 pita dari total 28 pita DNA yang dihasilkan (57 %)  merupakan pita DNA polimorfik. Rata-rata keragaman genetik kentang sebesar 26,8 %. Keragaman genetik terkecil (15,4 %) adalah antara kentang  Atlantic dan Superjhon, sedangkan keragaman terbesar (57,7 %) antara kentang Nadia dan Dessire. Hasil analisis pengelompokan menunjukkan tanaman mengelompok berdasarkan sifat/karakter dan asalnya. Kata kunci: kentang, keragaman genetik, RAPD Abstract The information of potato genetic diversity are required to support the increasing potato demands in the superior potato production. The information of genetic diversity can be obtained using RAPD molecular marker. RAPD can detect the genetic diversity at the DNA level, both in the coding region and non-protein-coding regions by detecting polymorphic sequences in nucleotides. This method provide accurate genetic information because it is not influenced by the environment. This study was conducted to analyze the genetic diversity of potato Superjhon, Atlantic, Dessire, Nadia and Granola using RAPD marker. Amongst the 14 random primers, only 7 primers produced polymorphic banding pattern. Sixteen DNA bands of total 28 existed DNA bands (57%) were polymorphic. The average of genetic diversity was 26.8 %. The smallest genetic diversity (15.4%) was between Atlantic and Superjhon, whereas the greatest genetic diversity (57.7%) was between Nadia and Dessire. The analysis results showed that potato clustered grouping was based on their characters and their origins. Keywords: genetic diversity, potatoes, RAPD


2014 ◽  
Vol 11 (2) ◽  
pp. 95-102 ◽  
Author(s):  
ME Hoque ◽  
H Huq ◽  
NJ Moon

Random Amplified Polymorphic DNA (RAPD) markers were used to study the molecular diversity of 12 popular potato varieties in Bangladesh. DNA was extracted from tender leaf sample for PCR amplification. The PCR amplified DNA profile was visualized on 2% agarose gel, staining with ethidium bromide. Eight RAPD primers were used to evaluate the genetic diversity of potato varieties. Some total of 36 DNA fragments were amplified and out of them 24 were polymorphic. Those primers generated 61.53% of polymorphic DNA band. The primer OPX 04 produced highest (9) number of DNA band and out of 9 amplicon 6 were polymorphic. Lowest number of amplification was observed in the primer OPA-17 and it was only 3. The highest Nei’s genetic distance (0.9701) was noticed between the variety Granola and Provinto. The highest (0.8205) number of genetic identity/similarity was observed between the varieties Cardinal and Diamant. The unweighted pair group method of arithmetic mean (UPGMA) dendrogram based on Nei’s genetic distance revealed that the 12 varieties followed into two main clusters. The present finding showed that there was high level of genetic diversity among the varieties which can be used for parental selection in potato breeding program. DOI: http://dx.doi.org/10.3329/sja.v11i2.18405 SAARC J. Agri., 11(2): 95-102 (2013)


2008 ◽  
Vol 88 (2) ◽  
pp. 307-312
Author(s):  
Zhao Mengli ◽  
Han Bing ◽  
Walter D Willms

Mountain rough fescue (Festuca campestris Rydb.) is a tufted native grass in southern Alberta and British Columbia, Canada, and has attracted interest for use in reclamation. However, its seed is often available from only a few localized sources and may not be adapted for areas removed from the collection site. We conducted a study to determine the genetic variability among rough fescue populations to assess its potential adaptation. Thirty plants were collected from each of six populations and analyzed using Random Amplified Polymorphic DNA (RAPD). One population (Kamloops, BC) was separated by several mountain ranges from the five easterly Alberta populations.The Kamloops population was also separated from the Alberta populations by genetic distance in two clusters. Of the total genetic variation present in the data, 21% was found among populations while the remaining (79%) was found within populations. Nei’s genetic distances among populations were related to their geographical distances. Genetic differences among populations appeared to be caused primarily by differences in gene frequencies rather than rare genes. Also, genetic diversity appeared to increase from west to east suggesting that the more easterly populations had greater adaptation potential. We speculate that the more easterly populations are less likely to share genes since the prevailing winds are from the west. Germplasm from the more easterly populations may be used with suitable precautions within Alberta and possibly around Kamloops. Key words: Genetic distance, geographic distance, reclamation, potential adaptation


2007 ◽  
Vol 97 (6) ◽  
pp. 585-590 ◽  
Author(s):  
C. Magaña ◽  
B. Beroiz ◽  
P. Hernández-Crespo ◽  
M. Montes de Oca ◽  
A. Carnero ◽  
...  

AbstractThe banana weevil (BW), Cosmopolites sordidus (Coleoptera: Curculionidae), is one of the most important insect pests of bananas and plantains. The mobility and the origin of BW infestations at the Canary Islands (Tenerife, La Gomera and La Palma) have been analysed using Random Amplified Polymorphic DNA (RAPD) as molecular markers. Populations from Costa Rica, Colombia, Uganda and Madeira were also included for comparison. One hundred and fifteen reproducible bands from eight primers were obtained. The level of polymorphism in the populations from the Canary Islands (40–62%) was in the range of those found in other populations. Nei's genetic distances, pair-wise fixation index (FST) values indicate that the closest populations are Tenerife populations among themselves (Nei's genetic distance=0.054–0.100; FST=0.091–0.157) and Costa Rica and Colombia populations (Nei's genetic distance=0.049; FST=0.113). Our results indicate the existence of BW local biotypes with limited gene flow and affected by genetic drift. These results are compatible with a unique event of colonization at Tenerife; whereas, the outbreaks in La Gomera and La Palma may come from independent introductions. The Madeira population is phylogenetically and geographically closer to the Canary Islands populations, suggesting that it is the most likely source of the insects introduced in the Canary Islands.


2019 ◽  
Vol 5 (3) ◽  
pp. 131-138
Author(s):  
M.R. Zolfaghari ◽  
F. Salimpour ◽  
F. Sharifnia ◽  
S.J. Marandi

Ficus carica L. is a species of Moraceae family that has been cultivated in different parts of the world from ancient time. Its fruit is eaten by human and has several medicinal properties. This species widely grows and cultivated in various parts of Iran. For this, in the current study, we investigated infraspecific genetic variation and population structure of F. carica in the country. 14 natural populations of F. carica were collected and their genomic DNA were extracted and tested with RAPD molecular technique. Parameters of population’s genetic diversity varied among the studied populations. In addition, AMOVA test revealed significant variations among the populations.  The studied populations clustered separately in UPGMA tree of RAPD data, moreover PCA and MDS plots produced similar results. STRUCTURE analysis revealed the best number of k = 9. Based on Nei’s genetic distance, we had nine distinct groups. Genetic clustering patterns according to UPGMA trees of RAPD data and Nei’s genetic distance were more similar with the results of STRUCTURE analysis. The small amount of Nm) the product of the effective size of individual populations (N) and the rate of migration among them (m) (value showed limited gene flow among the studied populations, therefore it seems that high genetic variations among these populations may be related less or few amount of gene exchange among populations.


2007 ◽  
Vol 4 (2) ◽  
pp. 133-138
Author(s):  
Jiao Zhong-Yao ◽  
Chen Sai ◽  
Zhu Xin-Ping ◽  
Du He-Jun ◽  
Zheng Guan-Min ◽  
...  

AbstractThe spotted longbarbel catfish (Mystus guttatus) is a member of the family Bagridae and is mainly distributed in the Pearl River Valley and Nandujiang River of Hainan Island. It is one of the four most famous fishes in the history of Pearl River Valley. Nowadays, M. guttatus has become a potential target for aquaculture in China due to its high nutritional value, but its genetic background is still unknown. This study was carried out to estimate its population genetic diversity in Pearl River. The random amplified polymorphic DNA (RAPD) technique was performed on 30 samples, using 20 random primers of length 10 nucleotides. The results showed that each primer amplified 3–9 bands per sample. Twenty primers produced 3210 well-amplified DNA fragments with reproducible band patterns and the average number of amplified DNA fragments reached 107 in each individual. Broadly speaking, 48 (44.9%) of 107 loci were polymorphic. Only the S30 primer did not produce polymorphic loci. The genetic distance of individuals ranged from 0.0467 to 0.2804. The average genetic distance among the 30 individuals was 0.1526±0.037. Genetic data in this study could be useful in genetic resource assessment as well as in wild population conservation and exploitation of M. guttatus in the future.


1970 ◽  
Vol 34 (3) ◽  
pp. 493-503 ◽  
Author(s):  
KK Ghosh ◽  
ME Haque ◽  
S Parvin ◽  
F Akhter ◽  
MM Rahim

This investigation was aimed at exploring the genetic diversity and relationship among nine Brassica varieties, namely BARI Sharisha-12, Agrani, Sampad, BINA Sharisha-4, BINA Sharisha-5, BARI Sharisha-13, Daulot, Rai-5, Alboglabra using Random Amplified Polymorphic DNA (RAPD) markers. In total, 59 reproducible DNA bands were generated by four arbitrary selected primers of which 58 (98.03%) bands were proved to be polymorphic. These bands ranged from 212 to 30686 bp in size. The highest proportion of polymorphic loci and gene diversity values were 37.29% and 0.1373, respectively, for BARI Sharisha-12 and the lowest proportion of polymorphic loci and gene diversity values were 8.47% and 0.0318, 8.47% and 0.0382 for BINA Sharisha-4 and Rai-5, respectively. A dendrogram was constructed using unweighted pair group method of arithmetic mean (UPGMA). The result of cluster analysis indicated that the 9 accessions were capable of being classified into 2 major groups. One group consists of BARI Sharisha-12, Agrani, Sampad, Daulot, Rai-5, Alboglabra. where Daulot and Rai-5 showed the lowest genetic distance of 0.049. And another group contains BINA Sharisha-4, BINA Sharisha-5, and BARI Sharisha-1 3, where BINA Sharisha-5 and BARI sharisha-13 showed genetic distance of 0.071. Key Words: RAPD, Brassica, genetic distance, polymorphic band. DOI: 10.3329/bjar.v34i3.3976 Bangladesh J. Agril. Res. 34(3) : 493-5032, September 2009


2017 ◽  
Vol 94 (4) ◽  
pp. 449-463 ◽  
Author(s):  
Mariette Anoumaa ◽  
Nasser Kouadio Yao ◽  
Eric Bertrand Kouam ◽  
Gabriel Kanmegne ◽  
Eunice Machuka ◽  
...  

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