scholarly journals EVALUASI VARIASI FENOTIPE DAN GENOTIPE POPULASI IKAN TAMBAKAN DARI JAWA BARAT, KALIMANTAN TENGAH, DAN JAMBI DENGAN TRUSS MORFOMETRIK DAN RANDOM AMPLIFIED POLYMORPHIC DNA (RAPD)

2018 ◽  
Vol 12 (3) ◽  
pp. 203
Author(s):  
Anang Hari Kristanto ◽  
Jojo Subagja ◽  
Wahyulia Cahyanti ◽  
Otong Zenal Arifin

Ikan tambakan (Helostoma temminckii) digemari sebagai ikan konsumsi, di daerah Sumatera dan Kalimantan. Dalam rangka pengembangan budidayanya melalui program domestikasi, informasi terkait variasi fenotipe dan genotipe induk asal perlu dilakukan. Penelitian ini bertujuan untuk mendapatkan karakteristik fenotipe dan genotipe ikan tambakan dari Jawa Barat, Kalimantan Tengah, dan Jambi. Penelitian dilakukan di Balai Riset Perikanan Budidaya Air Tawar dan Penyuluhan Perikanan (BRPBATPP), Bogor. Data diperoleh melalui pengukuran jarak bagian tubuh berdasarkan metode truss morphometric dan analisis DNA menggunakan metode RAPD. Hasil yang diperoleh menunjukkan bahwa nilai polimorfisme (81,25%) dan heterozigositas (0,3544) tertinggi terdapat pada populasi ikan tambakan asal Kalimantan Tengah. Jarak genetik tertinggi antara populasi Jambi dengan Kalimantan Tengah sebesar 0,1452; sedangkan jarak genetik terendah adalah 0,1044 yaitu antara populasi Jambi dengan Jawa Barat. Berdasarkan uji karakter morfometrik diketahui terdapat 13 karakter yang berbeda nyata yaitu A1, A2, A4, A5, B3, C1, C3, C4, C5, D3, D4, D5, dan D6. Populasi Jambi dengan Jawa Barat memiliki hubungan kekerabatan lebih dekat dibanding dengan populasi Kalimantan Tengah.Kissing gouramy (Helostoma temminckii) is a favored fish for consumption in Sumatra and Kalimantan area. Currently, information related to phenotypic variation and genotypes of the original broodstocks of kissing gouramy is limited to develop the fish’s culture technology through a domestication program. Therefore, the study was conducted to determine the characteristics of phenotype, and genotype of original kissing gouramy broodstocks. The research was conducted at the Institute for Freshwater Aquaculture Research and Development, Bogor. Data collection was carried out by measuring the body length using truss morphometric method and DNA analysis using the RAPD method. The results showed that the highest polymorphism (81.25%) and heterozygosity (0.3544) were found in the Central Kalimantan fish population. The highest genetic distance between Jambi and Central Kalimantan populations was 0.1452, while the lowest genetic distance was 0.1044 between Jambi and West Java population. Based on the trust morphometric measurement, it was identified 13 different characters on A1, A2, A4, A5, B3, C1, C3, C4, C5, D3, D4, D5, and D6. The Jambi and West Java populations are genetically close to each other while the Central Kalimantan population is relatively separated from the two.

2019 ◽  
Vol 23 (4) ◽  
pp. 145
Author(s):  
Nebuchadnezzar Akbar ◽  
M. Irfan ◽  
Muhammad Aris

The bigeye tuna (Thunnus obesus) is a migratory fish which can be found in the Atlantic, Indian and Pacific oceans. This fish has a commercial value and has been exploited worldwide including in Indonesia. The exploitation might affect the genetic diversity and population structure. The fact that the population stock resource is abundant and following fishing activities are increasing, study on population genetic and phylogeography canbe used as information to determine the status of the fish population based on genetic data. The study was conducted to investigate population genetic, and phylogeography of bigeye tuna in the North Moluccas and South Mollucas Seas, Indonesia. A total of 60 tissue bigeye tuna samples were collected from two study sites. The samples were amplified using mitochondrial DNA control region. Within population genetic diversity was revealed of 0.985 and 1.00 in North Moluccas and in south Moluccas, respectively, while between populations was 0.989. The genetic distance within population of North Moluccas (0.029) and South Mollucas (0.24) was very low, and all population was 0.027. The genetic distance between population of North Mollucas and South Mollucas was 0.025, South Mollucas and all population was 0.023, and all population with Norht Mollucas was 0.027. The genetic distance of North Mollucas and Pacific Ocean was 0.029, South Mollucas and Pacific Ocean was 0.023, North Mollucas, South Mollucas and Indian Ocean was 0.32. The Fst value between populations (0.990) showed that the two populations were not genetically different. A similar result showed from the phylogenetic trees analysis which individual of bigeye tuna was randomly clustred between North Moluccas and South Mollucas population, indicating that they were genetically close and from the same population. The population bigeye tuna from the North Mollucas and the South Mollucas exhibits no apparent phylogeographic distribution.


2013 ◽  
Vol 20 (1-2) ◽  
pp. 1-8
Author(s):  
MM Rahman ◽  
L Rahman ◽  
SN Begum ◽  
F Nur

Random Amplified Polymorphic DNA (RAPD) assay was initiated for molecular genetic analysis among 13 F3 rice lines and their parents. Four out of 15 decamer random primers were used to amplify genomic DNA and the primers yielded a total of 41 RAPD markers of which 37 were considered as polymorphic with a mean of 9.25 bands per primer. The percentage of polymorphic loci was 90.24. The highest percentage of polymorphic loci (14.63) and gene diversity (0.0714) was observed in 05-6 F3 line and the lowest polymorphic loci (0.00) and gene diversity (0.00) was found in 05-12 and 05-15 F3 lines. So, relatively high level of genetic variation was found in 05-6 F3 line and it was genetically more diverse compared to others. The average co-efficient of gene differentiation (GST) and gene flow (Nm) values across all the loci were 0.8689 and 0.0755, respectively. The UPGMA dendrogram based on the Nei’s genetic distance differentiated the rice genotypes into two main clusters: PNR-519, 05-19, 05-14, 05-12 and 05-17 grouped in cluster 1. On the other hand, Baradhan, 05-9, 05-13, 05-11, 05-5, 05-6, 05-1, 05-4, 05-15 and 05-25 were grouped in cluster 2. The highest genetic distance (0.586) was found between 05-4 and 05-17 F3 lines and they remain in different cluster.DOI: http://dx.doi.org/10.3329/pa.v20i1-2.16839 Progress. Agric. 20(1 & 2): 1 – 8, 2009


2021 ◽  
pp. 1-4
Author(s):  
Oscar H. Del Brutto ◽  
Robertino M. Mera

A total of 590 older adults of Amerindian ancestry living in rural Ecuador received anthropometric measurements and a brain magnetic resonance imaging to estimate the total cerebral small vessel disease (cSVD) score. A fully adjusted ordinal logistic regression model, with categories of the total cSVD score as the dependent variable, disclosed significant associations between the waist circumference, the waist-to-hip, and the waist-to-height ratios – but not the body mass index (BMI) – and the cSVD burden. Indices of abdominal obesity may better correlate with severity of cSVD than the BMI in Amerindians. Phenotypic characteristics of this population may account for these results.


Zootaxa ◽  
2021 ◽  
Vol 4926 (3) ◽  
pp. 401-416
Author(s):  
MOHAMMAD HUSSAIN FALAHZADAH ◽  
EBRAHIM SHOKOOHI ◽  
GHOLAM HOSSEIN MORAVEJ ◽  
PHATU WILLIAM MASHELA ◽  
ABDUL KHALID MADADI ◽  
...  

Several soil samples from different habitats in Badakhshan province of Afghanistan were collected to isolate and characterize bacteria feeding nematodes. The Galleria mellonella-baiting method was used for the isolation of the Afghan insect-associated nematodes. The nematodes were studied using morphological and morphometric data. The Oscheius specimen was characterized by a longer body (630–820 µm) and shorter pharynx (125–145 µm), whereas other morphological characters were not unusual. The Diploscapter specimen had an annulated cuticle, with lip region width 1.5 times shorter than the stoma, and had separated pharyngeal corpus from the isthmus and vulva located in the middle of the body. The molecular data were derived using three loci; 18S, 28S (D2/D3 segment), and ITS rRNA region, which were utilized to measure the genetic distance. The phylogenetic analysis was conducted to reconstruct the relationship tree. Both morphological and molecular approaches confirmed the identity of nematode isolates as Oscheius tipulae and Diploscapter coronatus. This is the first report of insect-associated nematodes from the soil of Afghanistan. Both species were capable of infecting and killing G. mellonella larvae in less than 96 h. 


2005 ◽  
Vol 47 (3) ◽  
pp. 119-123 ◽  
Author(s):  
Sarah Desirée Barbosa Cavalcanti ◽  
José Eduardo Levi ◽  
Kátia Cristina Dantas ◽  
José Eduardo Costa Martins

Our purpose was to compare the genetic polymorphism of six samples of P. brasiliensis (113, 339, BAT, T1F1, T3B6, T5LN1), with four samples of P. cerebriformis (735, 741, 750, 361) from the Mycological Laboratory of the Instituto de Medicina Tropical de São Paulo, using Random Amplified Polymorphic DNA Analysis (RAPD). RAPD profiles clearly segregated P. brasiliensis and P. cerebriformis isolates. However, the variation on band patterns among P. cerebriformis isolates was high. Sequencing of the 28S rDNA gene showed nucleotide conservancy among P. cerebriformis isolates, providing basis for taxonomical grouping, and disclosing high divergence to P. brasiliensis supporting that they are in fact two distinct species. Moreover, DNA sequence suggests that P. cerebriformis belongs in fact to the Aspergillus genus.


1999 ◽  
Vol 41 (5) ◽  
pp. 291-295 ◽  
Author(s):  
Abdel-Hamid Zaki ABDEL-HAMID ◽  
Jeanne Blanco de MOLFETTA ◽  
Vania FERNANDEZ ◽  
Vanderlei RODRIGUES

Susceptibility of snails to infection by certain trematodes and their suitability as hosts for continued development has been a bewildering problem in host-parasite relationships. The present work emphasizes our interest in snail genetics to determine what genes or gene products are specifically responsible for susceptibility of snails to infection. High molecular weight DNA was extracted from both susceptible and non-susceptible snails within the same species Biomphalaria tenagophila. RAPD was undertaken to distinguish between the two types of snails. Random primers (10 mers) were used to amplify the extracted DNA by the polymerase chain reaction (PCR) followed by polyacrylamide gel electrophoresis (PAGE) and silver staining. The results suggest that RAPD represents an efficient means of genome comparison, since many molecular markers were detected as genetic variations between susceptible and non-susceptible snails.


PLoS ONE ◽  
2014 ◽  
Vol 9 (7) ◽  
pp. e101799 ◽  
Author(s):  
Pernilla Omerov ◽  
Gunnar Steineck ◽  
Tommy Nyberg ◽  
Bo Runeson ◽  
Ullakarin Nyberg

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


2013 ◽  
Vol 13 (2) ◽  
pp. 73-78
Author(s):  
Jarina Joshsi ◽  
Lumanti Manandhar ◽  
Patima Shrestha ◽  
Rani Gupta ◽  
Rojlina Manadhar ◽  
...  

Random amplified polymorphic DNA (RAPD) markers were used to study genetic diversity in dog samples belonging to populations of German Shepherd and Japanese Spitz. A total of twelve samples were typed using eight RAPD primers. Out of eight primers, three primers gave result in six individuals of dogs. The phylogenetic tree constructed by the neighbor joining method based on Nei. Original measures revealed highest genetic identity found in German Shepherd as 0.9444 and highest genetic distance as 1.2809. The analysis predicts the number of polymorphic loci as 15 and the percentage of polymorphic loci as 83.3. Nepal Journal of Science and Technology Vol. 13, No. 2 (2012) 73-78 DOI: http://dx.doi.org/10.3126/njst.v13i2.7717


2016 ◽  
Vol 5 (2) ◽  
pp. 175 ◽  
Author(s):  
Mulyasari Mulyasari ◽  
Dinar Tri Soelistyowati ◽  
Anang Hari Kristanto ◽  
Irin Iriana Kusmini

Penelitian karakteristik genetik populasi ikan nilem, Osteochilus hasselti di Jawa Barat dilakukan untuk mendapatkan data base sebagai langkah awal dalam melaksanakan program pemuliaan guna mempertahankan dan meningkatkan produksi dari ikan nilem di Jawa Barat. Tujuan penelitian ini adalah melakukan identifikasi genetik ikan nilem menggunakan metode RAPD dan menelusuri keragaman intra dan inter-populasi ikan nilem, Osteochilus hasselti di sentra budidaya yang terdapat di daerah Jawa Barat. Berdasarkan hasil penelitian, populasi Sumedang secara genetis memiliki keragaman paling tinggi dibandingkan dengan populasi lainnya serta alel spesifik yang tidak ditemukan pada populasi lain (1.100 bp). Sedangkan Sukabumi memiliki keragaman genetik dan jumlah alel yang paling rendah. Hubungan inter-populasi ikan nilem hijau di Jawa Barat tidak berbeda nyata di mana jarak genetik enam populasi ikan nilem tersebut berkisar antara 0,0153-0,1392.Research on genetic variation was done to conduct breeding program as the effort to maintain and increase the production of nilem carp fish at West Java. The aim of this study was to identify nilem carp genetically and to estimate the variation of the intra and inter population of nilem carp fish from West Java using RAPD methods. The result showed that Sumedang population had the highest genetic variation and had specific allele that cannot be found at other population (1,100 bp). But in contrast Sukabumi population had the lowest genetic variation and allele number. The inter- population relationship among fish from West Java were not significantly different. Genetic distance among population were between 0.0153-0.1392.


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