scholarly journals Genetic variability of lemon basil (Ocimum × africanum Lour.) from Indonesian archipelago based on morphological and inter-simple sequence repeats markers

2020 ◽  
Vol 21 (12) ◽  
Author(s):  
Kurnia Makmur ◽  
TATIK CHIKMAWATI ◽  
SOBIR SOBIR
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Similarity Index ◽  
Morphological Characters ◽  
Molecular Data ◽  
Issr Markers ◽  
Morphological Observation ◽  
Indonesian Archipelago ◽  
Morphological And Molecular Data ◽  
Issr Primers

Abstract. Makmur K, Chikmawati T, Sobir. 2020. Genetic variability of lemon basil (Ocimum × africanum Lour.) from Indonesia based on morphological characters and ISSR markers. Biodiversitas 21: 5948-5953. Lemon basil (Ocimum × africanum Lour.) or kemangi is a highly beneficial plant, yet still underutilized. Therefore, providing necessary information on genetic diversity of this species is essential for further utilization. The aim of this study was to elucidate genetic diversity of 33 accessions of O. × africanum collected from four Islands of Indonesia along with three accessions of Ocimum basilicum L. Morphological observation was conducted on 37 morphological characters following the International Union for the Protection of New Varieties of Plants descriptor guidelines; subsequently, 13 ISSR primers were employed in molecular analysis. Both morphological and molecular data were analyzed based on simple matching similarity index using UPGMA method. Morphologically, O. × africanum and O. basilicum were clearly separated at the similarity index of 0.52, and among two species were divided into two groups according to two either character. ISSR analysis using 13 ISSR primers produced 111 DNA bands, and 108 of them (97.29%) were polymorphic. Cluster analysis based on ISSR data could not explicitly separate O. × africanum and O. basilicum accessions. Besides, Ocimum accessions collected from the same area did not always cluster into one group.

scholarly journals Genetic structure and diversity among individuals of Copaifera langsdorffii Desf. from Mato Grosso, Brazilian Amazon, using ISSR markers

2021 ◽  
Vol 10 (16) ◽  
pp. e187101623025
Author(s):  
Daniele Paula Maltezo ◽  
Julliane Dutra Medeiros ◽  
Ana Aparecida Bandini Rossi
Keyword(s):  
Genetic Diversity ◽  
Genetic Structure ◽  
Genetic Variability ◽  
Polymorphic Information Content ◽  
Issr Markers ◽  
Group Method ◽  
Mato Grosso ◽  
Copaifera Langsdorffii ◽  
Genetic Structure And Diversity ◽  
Issr Primers

The Amazon is the largest tropical forest in the world and is home to around 20% of all the biodiversity on the planet, among the species present in the Amazon is Copaifera langsdorffii, exploited mainly for the extraction of oil-resin and wood, often in ways incorrect, which can cause the loss of genetic variability. The aim of this study was to evaluate the genetic structure and diversity among individuals of C. langsdorffii located in Mato Grosso, Brazil, using ISSR markers. We sampled leaves from 27 adult individuals of C. langsdorffii, whose total genomic DNA was extracted. A total of 12 ISSR primers were used for the molecular characterization of the individuals. A grouping analysis was performed using the unweighted pair group method, Bayesian analysis and characterized by the genetic diversity. The genetic diversity among and within the groups was demonstrated by the AMOVA. As a result, 106 fragments were amplified and 98.11% were polymorphic. The polymorphic information content of each primer ranged from 0.45 to 0.81.  The dendrogram showed the formation of 4 distinct groups. The greatest genetic variability is found within the groups and not between them. The percentage of polymorphism, genetic dissimilarity values and genetic diversity indexes indicate that there is high genetic variability among Copaifera langsdorffii individuals, suggesting that ISSR primers were efficient in detecting polymorphism in this species and that the individuals have potential for compose programs aimed at the preservation of the species and the ability to integrate germplasm banks.

scholarly journals Assessment of genetic diversity in Moroccan sesame (Sesamum indicum) using ISSR molecular markers

OCL ◽  
2021 ◽  
Vol 28 ◽  
pp. 3
Author(s):  
Meriem El Harfi ◽  
Jamal Charafi ◽  
Karim Houmanat ◽  
Hafida Hanine ◽  
Abdelghani Nabloussi
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Polymorphic Information Content ◽  
Issr Markers ◽  
Sesamum Indicum ◽  
Simple Method ◽  
Low Genetic Diversity ◽  
Simple Repeats ◽  
New Germplasm ◽  
Issr Primers

There is a need for sesame (Sesamum indicum L.) breeding in Morocco to release performant and adapted varieties, which requires a large genetic variability in the germplasm to be used. In this context, genetic diversity of sesame populations from different locations in Tadla area was investigated using ISSR (Inter Sequence Simple Repeats) markers as a simple method to reveal polymorphism among them. A total of 130 individuals representing 31 populations were sampled. Twenty-four ISSR primers were used for analysis of individuals representing the 31 different sesame populations grown in different agroclimatic zones of Tadla, accounting for 90% of sesame cultivation area in Morocco. Indeed, seven primers showed legible and reproducible genomic profiles with an interesting number of bands. A total of 57 bands were obtained with ISSR primers, of which 47 were polymorphic. PIC (Polymorphic Information Content) ranged from 0.002 to 0.350, showing that ISSR markers are informative and relevant for discriminating the populations evaluated. The similarity coefficient of ISSR data ranged from 0.509 to 1, with an average of 0.870. The results obtained showed that Moroccan sesame populations are characterized by a low genetic diversity, suggesting a genetic proximity among them. Therefore, new germplasm should be either introduced from diverse geographical origins or created through mutagenesis breeding in order to broaden the existing genetic variability.

Genetic Relationship in Sainfoin (Onobrychis viciifolia) Landraces Cultivated East Anatolia by using RAPD and ISSR Markers

2021 ◽  
Author(s):  
Mehmet Macit Ertuş
Keyword(s):  
Genetic Diversity ◽  
Diversity Index ◽  
Calcareous Soils ◽  
Similarity Index ◽  
Issr Markers ◽  
High Genetic Diversity ◽  
Onobrychis Viciifolia ◽  
Young Leaves ◽  
Rapd And Issr ◽  
Issr Primers

Background: Sainfoin (Onobrychis viciifolia) is a forage crop that yields high in arid and calcareous soils and is cultivated in large areas. There aren’t many genetic diversity studies on the varieties of cultured sainfoin. This study was conducted to determine the genetic diversity and the degree of relationship between 23 cultivated landraces and one registered variety. Methods: To take samples from the populations, seeds were sown in the field in 2014. Samples were taken from the young leaves of the plants and preserved at -80oC in same year. RAPD and ISSR primers were used in the study. The bands obtained as a result of PCR were recorded and the data of both methods were also evaluated by combining them. Result: In the study, 5 RAPD and 4 ISSR primers were used and a total of 49 bands were obtained. Of 29 bands obtained using RAPD primers, 20 were found to be polymorphic and of 20 bands obtained using ISSR primers, 15 were found to be polymorphic. It was found that there was a very low correlation between the two methods. Using RAPD and ISSR markers and RAPD + ISSR combination, the similarity index among populations was found to be between 0.25-0.95, 0.5-1.00 and 0.45-0.91, respectively. The Nei’s genetic diversity index was found to be between 0.3365, 0.2656 and 0.3018 with RAPD, ISSR primers and RAPD + ISSR combination, respectively. Based on the dendrograms obtained using RAPD, ISSR primers and RAPD + ISSR combination, the populations under analysis were classified into 3, 3 and 5 groups, respectively. With this study, the closest populations were identified and a significantly high genetic diversity was detected.

scholarly journals Genetic variability of Indonesian eggplant (Solanum melongena) based on ISSR markers

2019 ◽  
Vol 20 (10) ◽  
Author(s):  
U.B. HUSNUDIN ◽  
B.S. DARYONO ◽  
Purnomo Purnomo
Keyword(s):  
Genetic Variability ◽  
Solanum Melongena ◽  
Similarity Index ◽  
Molecular Data ◽  
Issr Markers ◽  
Jaccard Coefficient ◽  
Sample Collection ◽  
Multivariate Statistical ◽  
Main Cluster ◽  
Pair Group

Abstract. Husnudin UB, Daryono BS, Purnomo. 2019. Genetic variability of Indonesian Eggplant (Solanum melongena) based on ISSR markers. Biodiversitas 20: 3049-3055. Eggplant (Solanum melongena L.) is one of important vegetable in Indonesia and this country has a variety of eggplant germplasm, whereas molecular data of Indonesian eggplant is limited. This study describes an analysis of genetic variation based on ISSR markers to determine the diversity and phenetic relationship of Indonesian eggplants. 23 samples were collected from the Indonesian Center for Agricultural Biotechnology Research and Development (ICABIOGRAD) and some commercial cultivars. Data were analyzed by ISSR analysis using UBC 809, UBC 880, UBC 888, UBC 892 and UBC 895 primers. Similarity index was counted by Jaccard Coefficient formula based on molecular scoring. Cluster analysis was conducted by Unweighted Pair Group Methods using Arithmetic averages (UPGMA) method to create a dendrogram with Multivariate Statistical Program (MVSP) v.3.1 software. The results showed that ISSR markers were effective in the estimation of the genetic variability of eggplant accessions characterized by different level of polymorphism. Five ISSR primers generated 40 polymorphic bands (64.5% of the total). The dendrogram divided 23 eggplant accessions into 2 main clusters and one accession ("terong jawa"/K18) located outside from the main cluster. Results suggested that all accessions were grouped randomly into some clusters not in accordance with the locations of sample collection.

scholarly journals Genetic diversity and morphological variability in Geranium purpureum Vill. (Geraniaceae) of Iran

Genetika ◽  
2017 ◽  
Vol 49 (2) ◽  
pp. 543-557 ◽  
Author(s):  
Somayeh Bozchaloyi ◽  
Masoud Sheidai ◽  
Maryam Keshavarzi ◽  
Zahra Noormohammadi
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Morphological Variability ◽  
Morphological Characteristics ◽  
Morphological Characters ◽  
Molecular Data ◽  
Mantel Test ◽  
Geographical Populations ◽  
Well Differentiated ◽  
Genetic Stratification

Genetic variability and populations, structure were studied in 15 geographical populations of Geranium purpureum Vill. (Geraniaceae). Genetic diversity parameters were determined in these populations. AMOVA and Gst analyses revealed the presence of genetic variability within populations and significant molecular difference among the studied populations. Mantel test showed positive significant correlation between genetic distance and geographical distance of the studied populations. STRUCTURE and K-Means clustering revealed populations, genetic stratification. UPGMA dendrogram of populations based on morphological characters was in agreement with NJ tree of molecular data. These results indicated that geographical populations of G. purpureum are well differentiated both in genetic content as well as morphological characteristics. Consensus tree based on morphological and genetic data separated some of these populations from the others suggesting the existence of ecotypes within this species.

scholarly journals Genetic polymorphism in brazilian microcystis spp. (Cyanobacteria) toxic and non-toxic through RFLP-PCR of the cpcBA-IGS

2009 ◽  
Vol 52 (4) ◽  
pp. 901-909 ◽  
Author(s):  
Maria do Carmo Bittencourt-Oliveira ◽  
Maristela Casé Costa Cunha ◽  
Ariadne do Nascimento Moura
Keyword(s):  
Genetic Diversity ◽  
Genetic Polymorphism ◽  
Genetic Variability ◽  
Intergenic Spacer ◽  
Single Species ◽  
Molecular Data ◽  
High Genetic Diversity ◽  
Toxic Blooms ◽  
Morphological And Molecular Data ◽  
Brazilian Populations

The escalating occurrence of cyanobacterial toxic blooms demands a better understanding of genetic variability as an auxiliary expedient in species identification, collaborating with the monitoring of water destined to public supply. This study aimed at the unraveling of genetic polymorphism in the toxic and nontoxic strains of Microcystis (Cyanobacteria) species, isolated from diverse Brazilian localities through the RFLP-PCR technique applied to the c-phycocyanin encoding operon and its intergenic spacer (cpcBA-IGS). Eighteen strains belonging to M. aeruginosa, M. panniformis, M. protocystis and M. wesenbergii, plus two other unidentified strains, were analyzed by means of the morphological and molecular data. The molecular data constituted three groups with low similarity values unrelated to the geographical origin, toxicity or morphospecies. A high genetic variability among the studied populations was unveiled by the results. Brazilian populations of Microcystis spp. displayed high genetic diversity when compared to those from Australia, Japan, United States and Europe. This ample genetic diversity could be observed through the diverse eletrophoretic profiles obtained among the strains from a single species. The presence of toxic and non-toxic strains was observed in the same species, as M. aeruginosa.

scholarly journals Keragaman Genetik Bawang Merah (Allium cepa L.) Berdasarkan Marka Morfologi dan ISSR

2017 ◽  
Vol 45 (2) ◽  
pp. 175
Author(s):  
Vebrita Sari ◽  
Miftahudin , ◽  
Dan Sobir
Keyword(s):  
Genetic Diversity ◽  
Genetic Resource ◽  
Geographic Origin ◽  
Morphological Characters ◽  
Issr Markers ◽  
Breeding Program ◽  
Polymorphic Band ◽  
Morphological Markers ◽  
Allium Cepa L ◽  
Issr Primers

Development of new shallot varieties requires genetic variation of the germplasm. However, information on genetic diversity of local shallot in Indonesia is still lacking. This study was aimed to analyze the genetic diversity of shallot based on morphological characters and ISSR markers for management of genetic resource and breeding program in Indonesia. This study was conducted during October 2014 to September 2015. The 34-shallot genotypes were collected from several regions in Indonesia in the form of the bulb. Twenty four morphological markers and 13 ISSR primers were used in this research. The informative characters to analyze genetic diversity of shallot were foliage cracking, bulb number and bulb morphological characters. ISSR markers generated 103 DNA polymorphic band with the total of 89.57% and the informative primers were ISSRred 4, ISSRred 9 and ISSRred 20. Both morphological and ISSR markers showed 27% genetic diversity and grouped all genotypes into two main groups; however the grouping did not relate to the geographic origin. The largest bulb diameter of 7.54 cm was obtained from Bangkok variety and the highest number of bulb per clump of 27 bulb/clump was produced by the genotype from Pekanbaru. These genotypes can be used as potential parents for shallot breeding program in Indonesia. <br /><br />Keywords: genetic diversity, ISSR markers, morphological characters, shallot<br /><br />

Assessment of genetic variability amongst cultivated populations of Khasi mandarin (Citrus reticulata Blanco) detected by ISSR

2021 ◽  
pp. 1-11
Author(s):  
Karishma Kashyap ◽  
Rasika M. Bhagwat ◽  
Sofia Banu
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Inter Simple Sequence Repeat ◽  
Northeast India ◽  
Issr Markers ◽  
Citrus Reticulata ◽  
Brahmaputra Valley ◽  
Indian Food ◽  
Cultivated Populations ◽  
High Level

Abstract Khasi mandarin (Citrus reticulata Blanco) is a commercial mandarin variety grown in northeast India and one of the 175 Indian food items included in the global first food atlas. The cultivated plantations of Khasi mandarin grown prominently in the lower Brahmaputra valley of Assam, northeast India, have been genetically eroded. The lack in the efforts for conservation of genetic variability in this mandarin variety prompted diversity analysis of Khasi mandarin germplasm across the region. Thus, the study aimed to investigate genetic diversity and partitioning of the genetic variations within and among 92 populations of Khasi mandarin collected from 10 cultivated sites in Kamrup and Kamrup (M) districts of Assam, India, using Inter-Simple Sequence Repeat (ISSR) markers. The amplification of genomic DNA with 17 ISSR primers yielded 216 scorable DNA amplicons of which 177 (81.94%) were polymorphic. The average polymorphism information content was 0.39 per primer. The total genetic diversity (HT = 0.28 ± 0.03) was close to the diversity within the population (HS = 0.20 ± 0.01). A high mean coefficient of gene differentiation (GST = 0.29) reflected a high level of gene flow (Nm = 1.22), indicating high genetic differentiation among the populations. Analysis of Molecular Variance (AMOVA) showed 78% of intra-population differentiation, 21% among the population and 1% among the districts. The obtained results indicate the existence of a high level of genetic diversity in the cultivated Khasi mandarin populations, indicating the need for preservation of each existing population to revive the dying out orchards in northeast India.

scholarly journals Genetic variation among South Brazilian accessions of Lippia alba Mill. (Verbenaceae) detected by ISSR and RAPD markers

2009 ◽  
Vol 69 (2) ◽  
pp. 375-380 ◽  
Author(s):  
MF. Manica-Cattani ◽  
J. Zacaria ◽  
G. Pauletti ◽  
L. Atti-Serafini ◽  
S. Echeverrigaray
Keyword(s):  
Genetic Variability ◽  
Rapd Markers ◽  
Molecular Data ◽  
Chemical Characteristics ◽  
Hierarchical Analysis ◽  
Rio Grande Do Sul ◽  
Medicinal Species ◽  
Lippia Alba ◽  
Very High ◽  
Issr Primers

Twenty-seven accessions of Lippia alba Mill. collected in Rio Grande do Sul state, Brazil, were analysed by ISSR and RAPD markers to evaluate their genetic variability and relationships. Six ISSR primers and four RAPD primers generated 120 amplified fragments, most of which were polymorphics. The overall genetic variability among accessions was very high when compared with other plant species. The hierarchical analysis of molecular data (UPGMA) showed low relationship between accessions, and no grouping between accessions of the same chemotype. Canonical functions allowed identifying some variables related with the chemical characteristics of the essential oils. Both ISSR and RAPD markers were efficient to address the genetic diversity of L. alba, and may contribute to the conservation and breeding of this increasingly important aromatic and medicinal species.

Sinalliaria, a new genus of Brassicaceae from eastern China, based on morphological and molecular data

Phytotaxa ◽  
2014 ◽  
Vol 186 (4) ◽  
pp. 188 ◽  
Author(s):  
Ying-Ying Zhou ◽  
HONG-WEI ZHANG ◽  
JIANG-QIN HU ◽  
Xiao-Feng Jin
Keyword(s):  
Dna Sequences ◽  
New Genus ◽  
Eastern China ◽  
Distinct Group ◽  
Morphological Characters ◽  
Molecular Data ◽  
New Combinations ◽  
The Family ◽  
Morphological And Molecular Data ◽  
Seed Testa

Sinalliaria is described here as a new genus of the family Brassicaceae from eastern China, based on the morphological characters and molecular sequences. Sinalliaria differs from the related genus Orychophragmus in having basal leaves petiolate, simple or rarely with 1‒3 lateral lobes (not pinnatisect); cauline leaves petiolate, cordate at base (not sessile, auriculate or amplexicaul at base); petals obovate to narrowly obovate, claw inconspicuous (not broadly obovate, with a claw as along as sepal); siliques truncate (not long-beaked) at apex. The microscopic characters of seed testa also show significant differences between Sinalliaria and Orychophragmus. Phylogenetic evidence from DNA sequences of nuclear ribosomal ITS and plastid region trnL-trnF indicates that Sinalliaria is a distinct group related to Orychophragmus and Raphanus, but these three genera do not form a clade. The new genus Sinalliaria is endemic to eastern China and has only one species and one variety. The new combinations, S. limprichtiana (Pax) X. F. Jin, Y. Y. Zhou & H. W. Zhang and S. limprichtiana var. grandifolia (Z. X. An) X. F. Jin, Y. Y. Zhou & H. W. Zhang are proposed here.

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