Assaying polymorphism by intron targeted intron-exon specific junction (ISJ) DNA marker for genetic diversity diagnostics of the Cucumis L. taxa

The Nucleus ◽  
2013 ◽  
Vol 56 (1) ◽  
pp. 15-21 ◽  
Author(s):  
Khedasana Rajkumari ◽  
Santosh Kumar Sharma ◽  
Satyawada Rama Rao
Keyword(s):  
Genetika ◽  
2013 ◽  
Vol 45 (2) ◽  
pp. 527-536 ◽  
Author(s):  
N.B. Singh ◽  
S. Joshi ◽  
P. Choudhary ◽  
J.P. Sharma

Around 100 clones of tree willows were subjected for nursery screening twice on morphometric traits. Genetic diversity was assessed in twenty-five genetically superior willow clones hailing from six countries using 16 SSR primers. Fourteen primers amplified the DNA but only ten showed polymorphism. Total 34 bands were scored, out of that 27 were found to be polymorphic and 7 were monomorphic. Three primers showed 100% polymorphism whereas 79.4% polymorphism was recorded in total. The dendrogram obtained from SSR markers revealed that clone SE-69-002 (S. matsudana) and NZ-1040 (S. matsudana X S. alba) as most similar clones (Jaccards coefficient of 0.97), and clone PN-721(S. matsudana X S. alba) and PN-731 (S. nigra), as most divergent clones (Jaccards coefficient of 0.63). All the genotypes were grouped into 4 distinct clusters. On the basis of similarity coefficient analysis the first cluster comprised of 11 genotypes, the second cluster have 8 genotypes where as third one has only one genotype and fourth cluster retained five genotypes. The clustering pattern further indicated that the geographic distribution may not be the reflection of genetic diversity in willow clones. Genotypes with high molecular diversity could be used in breeding programme in order to obtain heterotic hybrids and development of gene pools with broad genetic base. The genotype specific bands developed by the SSR primers could also be used for identification of cultivar.


2014 ◽  
Vol 13 (4-8) ◽  
pp. 184-189 ◽  
Author(s):  
Shashank Ashokrao Tidke ◽  
S. Kiran ◽  
Sanjay Ningappa Harke

2016 ◽  
Vol 5 (2) ◽  
pp. 183
Author(s):  
Sari Budi Moria Sembiring ◽  
Ketut Maha Setiawati ◽  
Haryanti Haryanti ◽  
Ida Komang Wardana

Studi analisis karakter genetik ikan hias laut clown menggunakan metode penanda DNA RAPD dilakukan dalam upaya membantu pengembangan perbenihan dan budidaya ikan hias laut clown di Indonesia. Tujuan penelitian ini adalah untuk mendeterminasi karakter genetik dengan menggunakan analisis individu dari populasi induk (F-0) dan turunannya (F-1) sehingga diperoleh tingkat penurunan keragaman genetik dan keterkaitannya dengan karakter morfologi. Sampel yang dianalisis terdiri atas 5 pasang induk ikan clown (10 sampel) dan masing-masing turunannya sebanyak 10 ekor (50 sampel) sehingga total 60 sampel. Nilai rata-rata keragaman genetik induk ikan clown dari semua lokus primer sebesar 0,253, sedangkan pada turunannya (F-1) adalah 0,157. Hal ini menggambarkan adanya pengaruh genetik terhadap perbedaan pola pemunculan band putih.Study genetic characteristic of clownfish, Amphiprion percula using RAPD DNA marker was conducted in order to support development of breeding and culture program of marine ornamental clownfish in Indonesia. The objective of this research was to determine of genetic characteristic of clown fish using individual analysis from F-0 population and its generations (F-1) to find specific marker which is related to its morphology. Total samples analyzed were 60, consist of 5 pairs of clownfish broodstock (10 samples) and 10 ind each generations (50 samples). Mean value of genetic diversity of clown fish broodstock from all primer loci was 0.253, while on its generation F-1 was 0.157. This result showed there was effect of genetic on the differences of white band pattern appearance.


2014 ◽  
Vol 1 (1) ◽  
pp. 1 ◽  
Author(s):  
Budi Martono ◽  
Laba Udarno

<p>Informasi keragaman genetik dan ketersediaan plasma nutfah teh (Camellia sinensis) diperlukan dalam perakitan varietas unggul. Keragaman genetik berdasarkan penanda DNA dapat memberikan hasil yang lebih konsisten karena tidak dipengaruhi lingkungan. Dalam penelitian ini sebanyak 9 genotipe teh dianalisis keragamannya menggunakan enam penanda RAPD (OPA 03, OPA 05, OPB 04, OPB 06, OPC 06, dan OPD 08). Penelitian dilakukan mulai bulan Maret sampai Mei 2013 di Laboratorium Terpadu Biotrop Bogor. Perhitungan koefisien kesamaan genetik dan analisis gerombol dilakukan dengan menggunakan perangkat lunak NTSYSpc versi 2.02. Sebanyak 54 lokus penanda RAPD berhasil diamplifikasi menggunakan enam primer dan 47 lokus di antaranya memiliki alel yang polimorfik (87,04%). Hasil analisis gerombol berdasarkan kesamaan genetiknya mengelompokkan 9 genotipe ke dalam enam kelompok. Empat kelompok (I, II, IV, V) masing-masing terdiri atas satu genotipe, sementara dua kelompok yang lain yaitu kelompok III dan VI masing-masing beranggotakan tiga dan dua genotipe.</p><p>Kata Kunci: Camellia sinensis, diversitas genetik, penanda RAPD</p><p>The availability of diverse tea (Camellia sinensis) germplasms as well as the information about their genetic diversity is required for plant breeding program. Genetic diversity analysis based on DNA marker is known to be more effective since the markers provide more consistent results. In this study, nine tea genotypes were evaluated for their genetic diversity using six Random Amplified Polymorphic DNA (RAPD) markers (OPA 03, OPA 05, OPB 04, OPB 06, OPC 06, and OPD 08). The study was conducted from March to May 2013 in the Integrated Laboratory of Biotrop Bogor. The estimation of genetic similarity and the cluster analysis were done using NTSYSpc version 2.02. Of the six RAPD markers used in this study, a total of 54 RAPD marker loci have been successfully amplified. In which, 47 loci (87.04%) were polymorphic and subsequently used for the evaluation of tea genotypes. The results of cluster analysis showed that those tea genotypes were clustered into six groups. Each of four groups (I, II, IV, V) consisted of only one genotype. Meanwhile, the other two groups (III and VI) had three and two genotypes, respectively.</p>


Genetika ◽  
2017 ◽  
Vol 49 (1) ◽  
pp. 31-42
Author(s):  
Saida Sharifova ◽  
Sabina Mehdiyeva ◽  
Mehraj Abbasov

Inter simple sequence repeat (ISSR) markers were used for variation analysis among 41 tomato accessions. A total of 50 scorable bands were obtained, where 32 were polymorphic, representing 63.3% of all the amplified loci. Polymorphism percentage ranged from 50 to 90% and an average number of polymorphic bands of 4.0 were observed. An average genetic diversity index was 0.61. Primer UBC860 and UBC825 generated the greatest diversity index with a value of 0.89 and 0.85 respectively. The smallest diversity identified by primer UBC808, with an index of 0.34. The genetic similarity among studied genotypes ranged from 0.52 to 0.98. The cluster analysis based on Jaccard?s similarity coefficient divided genotypes into 6 distinct clusters on a value of 0.74. The lowest genetic distance was found between ?Gronastiy? and ?AG1224? (0.52), ?Orange? and ?AG1224? (0.54), and ?Evgeniya? and ?AG1224? (0.55) accessions. The highest similarity of 0.98 was determined between ?Zafar? and ?Azerbaijan-94?, ?Khachmaz-1? and ?Azerbaijan-94?, ?Khachmaz-1? and ?Severyanka?, and ?Shakar? and ?Absheron-1? accessions.


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