Comparison of genetic diversity between cultivated and wild grape varieties originating from the Near-Caspian zone of Azerbaijan

Aim: The Caucasus is considered as a possible primary centre of origin of grapevine. The aim of our research work was to study genetic diversity among cultivated Caucasian grape varieties and wild relatives originating from Near-Caspian areas of Azerbaijan on the basis of simple sequence repeat (SSR) markers.Methods and Results: Microsatellite allele data obtained in 31 local table grape varieties of Vitis vinifera L. ssp. sativa (Absheron region) and 34 wild varieties of Vitis vinifera L. ssp. sylvestris (Nabran, Davachi and Guba regions) were used to estimate population genetic parameters such as the polymorphism information content (PIC), the probability of identity (PI) and the frequency of null alleles (r). The genetic differences among the wild populations and between the wild and the cultivated gene pools were assessed using POPGENE, Arlequin and GENETIX programs. The selected fifteen microsatellite (SSR) markers revealed a high degree of polymorphism within and among the grape populations analyzed. The genetic similarity index ranged from 0.02 to 0.933.Conclusions: Among the selected markers, VVMD28 and VVMD36 displayed the highest diversity level regarding the expected heterozygosity and PIC (highest values) and PI (lowest values). In consequence, we postulate that these two markers are the most appropriate ones for the identification of grape accession and the determination of genetic diversity among cultivated and wild grape genotypes. Clustering analysis based on SSR markers data led to a good separation between cultivated and wild accessions and between wild accessions originating from different regions.Significance and impact of the study: The fifteen microsatellite markers used in this study were highly informative for the identification and analysis of genetic structure of Azerbaijan grapevine populations and clarified the relationships among grape accessions.

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GENETIC DIVERSITY OF WILD GRAPE (VITIS VINIFERA SSP. SYLVESTRIS) POPULATIONS IN ZAGROS FORESTS AS REVEALED BY SSR MARKERS

Acta Horticulturae ◽

10.17660/actahortic.2015.1082.25 ◽

2015 ◽

pp. 189-194 ◽

Cited By ~ 1

Author(s):

H. Doulati Baneh ◽

S.A. Mohammadi ◽

M. Labra ◽

F. Shafaie

Keyword(s):

Genetic Diversity ◽

Vitis Vinifera ◽

Ssr Markers ◽

Zagros Forests ◽

Wild Grape

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Studying of genetic polymorphism of olive varieties of Azerbaijan and Turkey

Scientific Bulletin ◽

10.54414/gylh5940 ◽

2020 ◽

Vol 3 ◽

pp. 91-95

Author(s):

A. Mammadov ◽

◽

A. Ipek ◽

S. H. Teoman-Duran ◽

S. A. Aghayeva ◽

...

Keyword(s):

Genetic Diversity ◽

Molecular Markers ◽

Genetic Polymorphism ◽

Ssr Markers ◽

Genome Analysis ◽

Genetic Relationships ◽

Research Work ◽

Natural Populations ◽

Gene Pools ◽

Olive Varieties

In the article, genetic diversity of olive samples from Azerbaijan and Turkey, genotyping of natural populations and gene pools with molecular markers, associative mapping, genome analysis, carried out jointly genetic relationships between genotypes of olives and genetics originating from Azerbaijan and Turkey are studied by molecular analysis through their SSR markers. When the research work is successful, the results of this study will be demonstrated the presence of SSR markers to distinguish olive genotypes and further studies on olive production in both countries will be undertaken.

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Genetic Diversity of Selected Rice Genotypes under Water Stress Conditions

Plants ◽

10.3390/plants10010027 ◽

2020 ◽

Vol 10 (1) ◽

pp. 27

Author(s):

Mahmoud M. Gaballah ◽

Azza M. Metwally ◽

Milan Skalicky ◽

Mohamed M. Hassan ◽

Marian Brestic ◽

...

Keyword(s):

Genetic Diversity ◽

Water Stress ◽

Drought Stress ◽

Drought Tolerance ◽

Ssr Markers ◽

Similarity Index ◽

Stress Conditions ◽

Yield Potential ◽

Drought Tolerant ◽

Rice Genotypes

Drought is the most challenging abiotic stress for rice production in the world. Thus, developing new rice genotype tolerance to water scarcity is one of the best strategies to achieve and maximize high yield potential with water savings. The study aims to characterize 16 rice genotypes for grain and agronomic parameters under normal and drought stress conditions, and genetic differentiation, by determining specific DNA markers related to drought tolerance using Simple Sequence Repeats (SSR) markers and grouping cultivars, establishing their genetic relationship for different traits. The experiment was conducted under irrigated (normal) and water stress conditions. Mean squares due to genotype × environment interactions were highly significant for major traits. For the number of panicles/plants, the genotypes Giza179, IET1444, Hybrid1, and Hybrid2 showed the maximum mean values. The required sterility percentage values were produced by genotypes IET1444, Giza178, Hybrid2, and Giza179, while, Sakha101, Giza179, Hybrid1, and Hybrid2 achieved the highest values of grain yield/plant. The genotypes Giza178, Giza179, Hybrid1, and Hybrid2, produced maximum values for water use efficiency. The effective number of alleles per locus ranged from 1.20 alleles to 3.0 alleles with an average of 1.28 alleles, and the He values for all SSR markers used varied from 0.94 to 1.00 with an average of 0.98. The polymorphic information content (PIC) values for the SSR were varied from 0.83 to 0.99, with an average of 0.95 along with a highly significant correlation between PIC values and the number of amplified alleles detected per locus. The highest similarity coefficient between Giza181 and Giza182 (Indica type) was observed and are susceptible to drought stress. High similarity percentage between the genotypes (japonica type; Sakha104 with Sakha102 and Sakha106 (0.45), Sakha101 with Sakha102 and Sakha106 (0.40), Sakha105 with Hybrid1 (0.40), Hybrid1 with Giza178 (0.40) and GZ1368-S-5-4 with Giza181 (0.40)) was also observed, which are also susceptible to drought stress. All genotypes are grouped into two major clusters in the dendrogram at 66% similarity based on Jaccard’s similarity index. The first cluster (A) was divided into two minor groups A1 and A2, in which A1 had two groups A1-1 and A1-2, containing drought-tolerant genotypes like IET1444, GZ1386-S-5-4 and Hybrid1. On the other hand, the A1-2 cluster divided into A1-2-1 containing Hybrid2 genotype and A1-2-2 containing Giza179 and Giza178 at coefficient 0.91, showing moderate tolerance to drought stress. The genotypes GZ1368-S-5-4, IET1444, Giza 178, and Giza179, could be included as appropriate materials for developing a drought-tolerant variety breeding program. Genetic diversity to grow new rice cultivars that combine drought tolerance with high grain yields is essential to maintaining food security.

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Identification of disease resistance-linked alleles in Vitis vinifera germplasm

BIO Web of Conferences ◽

10.1051/bioconf/20191301004 ◽

2019 ◽

Vol 13 ◽

pp. 01004

Author(s):

Maria Lucia Prazzoli ◽

Silvia Lorenzi ◽

Michele Perazzolli ◽

Silvia Toffolatti ◽

Osvaldo Failla ◽

...

Keyword(s):

Vitis Vinifera ◽

Ssr Markers ◽

Genetic Resistance ◽

Wine Quality ◽

Breeding Programs ◽

Relationship Analysis ◽

Central Asian ◽

Grape Varieties ◽

Group Pattern ◽

Grape Breeding

Introgression of genetic resistance to fungal diseases from American and Asian Vitis species traditionally pursued in grape breeding programs, although facilitated by molecular tools, has an impact on wine quality that still slows down development of competitive varieties. A contribution to the genetic improvement of grapevines for resistance to pathogens may come from unexplored genetic resources of the Eurasian Vitis vinifera L. In the present study, a hundred grapevine accessions from Georgia, Armenia and Azerbaijan were genotyped with SSR markers linked to QTLs for resistance to downy and powdery mildew, and with 21 SSR markers widely used for genetic diversity and relationship analysis. Looking at population genetic structure, Armenian and Azerbaijani accessions fell within the same cluster and were included among the Central Asian grape varieties of a homogeneous dataset, while Georgian accessions formed a separate group. Pattern of SSR alleles flanking the locus Ren1 and associated with resistance to Erysiphe necator in 'Kishmish vatkana', 'Dzhandzhal kara' and other Central Asian cultivars were found in three varieties from the Azerbaijani population that reached very high scores when assessed for PM resistance.

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Genetic diversity of cultivated and wild-type peanuts evaluated with M13-tailed SSR markers and sequencing

Genetics Research ◽

10.1017/s0016672307008695 ◽

2007 ◽

Vol 89 (2) ◽

pp. 93-106 ◽

Cited By ~ 37

Author(s):

NOELLE A. BARKLEY ◽

ROB E. DEAN ◽

ROY N. PITTMAN ◽

MING L. WANG ◽

CORLEY C. HOLBROOK ◽

...

Keyword(s):

Genetic Diversity ◽

Ssr Markers ◽

Polymorphic Information Content ◽

Data Set ◽

Mini Core Collection ◽

Genomic Ssr ◽

Cultivated Peanut ◽

The Mean ◽

Wild Accessions ◽

Almost All

SummaryThirty-one genomic SSR markers with a M13 tail attached were used to assess the genetic diversity of the peanut mini core collection. The M13-tailed method was effective in discriminating almost all the cultivated and wild accessions. A total of 477 alleles were detected with an average of 15·4 alleles per locus. The mean polymorphic information content (PIC) score was 0·687. The cultivated peanut (Arachis hypogaea L.) mini core produced a total of 312 alleles with an average of 10·1 alleles per locus. A neighbour-joining tree was constructed to determine the interspecific and intraspecific relationships in this data set. Almost all the peanut accessions in this data set classified into subspecies and botanical varieties such as subsp. hypogaea var. hypogaea, subsp. fastigiata var. fastigiata, and subsp. fastigiata var. vulgaris clustered with other accessions with the same classification, which lends further support to their current taxonomy. Alleles were sequenced from one of the SSR markers used in this study, which demonstrated that the repeat motif is conserved when transferring the marker across species borders. This study allowed the examination of the diversity and phylogenetic relationships in the peanut mini core which has not been previously reported.

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Assessment of the Genetic Diversity of Joha Rice Germplasms by using Simple Sequence Repeat Markers

Indian Journal of Agricultural Research ◽

10.18805/ijare.a-5689 ◽

2021 ◽

Author(s):

P. Saikia ◽

B. Neog ◽

N. Gogoi ◽

D. Baruah

Keyword(s):

Genetic Diversity ◽

Ssr Markers ◽

Genetic Relationship ◽

Simple Sequence Repeat ◽

Similarity Index ◽

Morphological Characters ◽

Aromatic Rice ◽

Sequence Repeat ◽

Rice Landraces ◽

Simple Sequence

Background: Joha Rice are aromatic rice landraces, having small to medium grain size, indigenous to Assam, India. Due to the introduction of high yielding hybrid varieties, many endemic rice landraces including Joha Rice, are in a verge of extinction, as these can only be conserved and maintained by repetitive cultivation. As there is a conflict of local names for these landraces, many landraces with similar morphological characters have been reported from various parts. Simple sequence repeat (SSR) markers with longer perfect repeats have earlier proved successful and essential in studying the genetic diversity among rice cultivars. The present study is aimed to evaluate the genetic relationship among fifteen (15) aromatic Joha rice landraces endemic to Upper Brahmaputra Valley, Assam.Methods: In the present investigation, different landraces of Joha rice were surveyed during 2016-2019. 15 landraces were selected, based on their morphological characters and local data. The collected germplasm of Joha rice was grown in the experimental plots and DNA from young, healthy leaves were isolated which were further used for determination of genetic diversity using SSR markers. Thirty-eight SSR markers were used to evaluate the genetic relationship among the fifteen aromatic rice landraces.Result: A total of 110 polymorphic alleles were detected by 34 markers across all the landraces, with an average of 3.25 per locus. The Polymorphic Information Content (PIC) ranged from 0.24 to 0.83, with an average of 0.5 for each marker. The marker RM154, RM454 and RM489 produced maximum six alleles showing PIC value of 0.82, 0.82 and 0.83, indicating a high polymorphism. UPGMA cluster analysis using Jaccard’s similarity index produced a dendrogram clustering the rice landraces in three major groups and five subgroups. Group II, which consisted of five sub-groups and 12 landraces, showed diverse genotypes. These landraces showed significant genetic similarities.

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Genetic diversity among tropical maize inbred lines as revealed by SSR markers

Australian Journal of Crop Science ◽

10.21475/ajcs.20.14.12.1589.pdf ◽

2020 ◽

pp. 2010-2019

Author(s):

Maizura Abu Sin ◽

Ghizan Saleh ◽

Nur Ashikin Psyquay Abdullah ◽

Pedram Kashiani

Keyword(s):

Genetic Diversity ◽

Ssr Markers ◽

Gene Diversity ◽

Polymorphic Information Content ◽

Similarity Index ◽

Inbred Lines ◽

Hybrid Breeding ◽

Heterotic Groups ◽

Breeding Programs ◽

Maize Inbred Lines

Genetic diversity and phenotypic superiority are important attributes of parental inbred lines for use in hybrid breeding programs. In this study, genetic diversity among 30 maize (Zea mays L.) inbred lines comprising of 28 introductions from the International Maize and Wheat Improvement Center (CIMMYT), one from Indonesia and a locally developed, were evaluated using 100 simple sequence repeat (SSR) markers, as early screening for potential parents of hybrid varieties. All markers were polymorphic, with a total of 550 unique alleles detected on the 100 loci from the 30 inbred lines. Allelic richness ranged from 2 to 13 per locus, with an average of 5.50 alleles (na). Number of effective alleles (ne) was 3.75 per locus, indicating their high effectiveness in revealing diversity among inbred lines. Average polymorphic information content (PIC) was 0.624, with values ranging from 0.178 to 0.874, indicating high informativeness of the markers. High gene diversity was observed on Chromosomes 8 and 4, with high number of effective alleles, indicating their potential usefulness for QTL analysis. The UPGMA dendrogram constructed identified four heterotic groups within a similarity index of 0.350, indicating that these markers were able to group the inbred lines. The three-dimensional PCoA plot also supports the dendrogram grouping, indicating that these two methods complement each other. Inbred lines in different heterotic groups have originated from different backgrounds and population sources. Information on genetic diversity among the maize inbred lines are useful in developing strategies exploiting heterosis in breeding programs

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Genetic diversity and population structure of Vernonia [Vernonia galamensis (Cass.) Less] populations from Ethiopia revealed by SSR markers

10.21203/rs.2.18928/v1 ◽

2019 ◽

Author(s):

Alemneh Mideksa Egu ◽

Kifle Dagne ◽

Kassahun Tesfaye ◽

Xuebo Hu

Keyword(s):

Genetic Diversity ◽

Ssr Markers ◽

Polymorphic Information Content ◽

Major Gene ◽

In Situ Conservation ◽

Germplasm Conservation ◽

Pharmaceutical Products ◽

Gene Pools ◽

Vernonia Galamensis ◽

Diversity Assessment

Abstract BackgroundVernonia (Vernonia galamensis) is a potential novel industrial crop due to high demand for its natural epoxidised oil, which can be used for the manufacturing of oleochemicals such as paints, plastic formulations (polyvinyl chloride), and pharmaceutical products. This study is initiated for the systematic and intensive genetic diversity assessment of V. galamensis accessions by SSR molecular markers to minimize the existing research gaps, provide a clue for germplasm conservation and further research. ResultsTwenty SSR markers were used for genetic diversity analyses of 150 individual V. galamensis accessions representing 10 populations, from which a total of 79 bands were identified across the entire loci. All the loci used showed high polymorphism that ranged from 0.50 to 0.96, while the mean observed heterozygosity (Ho) was 0.15 across all the 20 markers evaluated. The molecular variance analysis (AMOVA) showed significant variations despite low differentiation among populations which accounted for only 11% of the total variations. Populations clustering showed that the dendrogram and principal coordinate’s analysis roughly classified the 150 accessions into four groups. However, the Bayesian model-based clustering (STRUCTURE) grouped into 6 (K = 6) major gene pools. These analyses showed accessions collected from the same region of origin did not often grouped entirely together within a given major groups. ConclusionsThe result suggested that the markers applied to ten populations, in which East Showa and East Harerghe revealed higher genetic diversity, signaled that these areas are the hotspots for in-situ conservation of V. galamensis. In addition, the values of SSR markers such as heterozygosity, Shannon‘s index, polymorphic information content, and population clusters are important baseline information for future V. galamensis cultivation, breeding and genetic resource conservation endeavors in Ethiopia.

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Evaluation of DNA polymorphism among cultivated and wild grapevine accessions from Azerbaijan

Czech Journal of Genetics and Plant Breeding ◽

10.17221/12/2010-cjgpb ◽

2010 ◽

Vol 46 (No. 2) ◽

pp. 75-84 ◽

Cited By ~ 2

Author(s):

S. Salayeva ◽

E. Akhundova ◽

A. Mammadov

Keyword(s):

Genetic Diversity ◽

Caspian Sea ◽

Wild Population ◽

Rapd Analysis ◽

Diversity Index ◽

Genetic Relationships ◽

Similarity Index ◽

The Caspian Sea ◽

Wild Grape ◽

Wild Grapevine

To estimate genetic relationships among 31 cultivated and 34 wild grape accessions originating from regions near the Caspian Sea in the Azerbaijan Republic, RAPD analysis was performed with 27 decamer primers selected from a total of 55 primers. The most discriminating primers were OPC-16, OPF-18 and OPA-17, which showed the highest values of genetic diversity (0.927, 0.914 and 0.909, respectively). The lowest values of diversity pertained to the markers OPA-1 (0.615) and V-20 (0.624). The cluster analysis representing genetic similarity among all selected samples divided the genotypes into nine separate groups at similarity index 0.508. Within the studied Azerbaijan grape populations the highest genetic diversity belonged to the population of cultivated samples originating from the Absheron peninsula, with a diversity index 0.852 and the next ranks were assigned to the wild populations originating from Nabran and Guba regions, with a diversity index 0.824 and 0.793, respectively. The lowest diversity was observed within Davachi individuals, with a diversity index 0.765. The wild population from Azerbaijan was molecularly similar to the cultivated gene pool from this area. This result supported the hypothesis that the southwest of the Caspian Sea is a region where grape was brought into culture. During the analysis a special band was observed which could be used in identifying wild and cultivated grape accessions with high or low resveratrol content. The results of this work clearly indicated that the RAPD analysis can be used to estimate genotypic similarities, genetic diversity and for clustering cultivated and wild grape accessions.

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