scholarly journals Research Article Safflower genetic diversity based on agronomic characteristics in Mato Grosso state, Brazil, for a crop improvement program

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
J.P.E. Lira ◽  
M.A.A. Barelli ◽  
V.P. da Silva ◽  
R. Felipin-Azevedo ◽  
D.T. dos Santos ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Crop Improvement ◽  
Improvement Program ◽  
Mato Grosso ◽  
Agronomic Characteristics ◽  
Research Article

scholarly journals Population structure and genetic diversity analysis in Sali (Oryza sativa) rice germplasm of Assam using microsatellite markers

2021 ◽  
Vol 58 (2) ◽  
pp. 279-286
Author(s):  
Sandhani Saikia ◽  
Pratap Jyoti Handique ◽  
Mahendra K Modi
Keyword(s):  
Genetic Diversity ◽  
Ssr Markers ◽  
Genetic Improvement ◽  
Crop Improvement ◽  
Mean Value ◽  
Diversity Analysis ◽  
Rice Cultivars ◽  
Improvement Program ◽  
Information Index ◽  
Improvement Programs

Genetic diversity is the source of novel allelic combinations that can be efficiently utilized in any crop improvement program. To facilitate future crop improvement programs in rice, a study was designed to identify the underlying genetic variations in the Sali rice germplasms of Assam using SSR markers. The 129 SSR markers that were used in the study amplified a total of 765 fragments with an average of 5.93 alleles per locus. The Shannon's Information Index was found to be in the range from 0.533 to 1.786. The Polymorphism Information Content (PIC) fell into the range from 0.304 to 0.691 with a mean value of 0.55. The overall FST value was found to be 0.519 that indicated the presence of genetic differentiation amongst the genotypes used in the study. The Sali population was divided into two clusters. The information obtained from the present study will facilitate the genetic improvement of Sali rice cultivars.

scholarly journals Research Article Genetic diversity of Zingiber officinale (Zingiberaceae) germplasm grown in urban and rural backyards in Mato Grosso, Brazil

2020 ◽  
Vol 19 (2) ◽  
Author(s):  
E.S. Cardoso ◽  
A.A.B. Rossi ◽  
E.C.M. Pedri ◽  
K.É.M. Zortéa ◽  
A.V. Tiago ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Mato Grosso ◽  
Research Article

scholarly journals Research Article The genetic diversity and population structure of Genipa Americana (Rubiaceae) in Northern Mato Grosso, Brazil

2018 ◽  
Vol 17 (4) ◽  
Author(s):  
D.A.C. Ruzza ◽  
A.A.B. Rossi ◽  
R.B. Bispo ◽  
A.V. Tiago ◽  
J. S. Cochev ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Mato Grosso ◽  
Research Article

scholarly journals Research Article Genetic diversity and population structure of cassava ethno-varieties grown in six municipalities in the state of Mato Grosso, Brazil

2019 ◽  
Vol 18 (4) ◽  
Author(s):  
A.V. Tiago ◽  
E.S.S. Hoogerheide ◽  
E.C.M. Pedri ◽  
F.S. Rossi ◽  
E.S. Cardoso ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
The State ◽  
Mato Grosso ◽  
Research Article

scholarly journals Genetic Diversity of Upland Rice Germplasm in Malaysia Based on Quantitative Traits

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
M. Sohrabi ◽  
M. Y. Rafii ◽  
M. M. Hanafi ◽  
A. Siti Nor Akmar ◽  
M. A. Latif
Keyword(s):  
Genetic Diversity ◽  
Growth Traits ◽  
Upland Rice ◽  
Flag Leaf ◽  
Crop Improvement ◽  
Leaf Length ◽  
Width Ratio ◽  
Improvement Program ◽  
Days To Flowering ◽  
Flag Leaf Length

Genetic diversity is prerequisite for any crop improvement program as it helps in the development of superior recombinants. Fifty Malaysian upland rice accessions were evaluated for 12 growth traits, yield and yield components. All of the traits were significant and highly significant among the accessions. The higher magnitudes of genotypic and phenotypic coefficients of variation were recorded for flag leaf length-to-width ratio, spikelet fertility, and days to flowering. High heritability along with high genetic advance was registered for yield of plant, days to flowering, and flag leaf length-to-width ratio suggesting preponderance of additive gene action in the gene expression of these characters. Plant height showed highly significant positive correlation with most of the traits. According to UPGMA cluster analysis all accessions were clustered into six groups. Twelve morphological traits provided around 77% of total variation among the accessions.

scholarly journals Unlocking Genetic Diversity in Selected Chickpea Genotypes Using Morphological and Molecular Markers

2017 ◽  
Vol 5 (1) ◽  
pp. 50-57
Author(s):  
Rupsanatan Mandal ◽  
Suprakash Pal ◽  
Nonigopal Shit
Keyword(s):  
Genetic Diversity ◽  
Molecular Markers ◽  
Coefficient Of Variation ◽  
Block Design ◽  
Crop Improvement ◽  
Research Work ◽  
Genetic Maps ◽  
Quantitative Character ◽  
Moderate Degree ◽  
Improvement Program

Proficiency and organization of the genetic variability in cultivated and wild relatives are pivotal for a particular crop improvement program. In the present scenario there has been noteworthy improvement in the development of novel genetic tools such as DNA or molecular markers and genetic maps profiling techniques. In this study, seven chickpea (Cicer arietinum L.) genotypes including some cultivars were considered (Collection Id of the seven genotypes are TZCP-1, TZCP-2, TZCP-3, TZCP-4, TZCP-5, TZCP-6 and TZCP-7). The experiment was conducted out in Random Complete Block Design (RCBD) having three replications. All the quantitative characters were collected for assessing the diversity and to find key characters in chickpea cultivars. The statistical analysis was done for all the quantitative character (viz. plant height, number of branches per plant, number of pod per plant, number of seeds per pod, test weight, seed length, seed width, days to 50% flowering, days to 50% maturity and grain yield). Analysis of variance divulged significant differences among the genotypes for all the 10 characters. An extensive range of diversity was displayed by most of the characters under study. The magnitude of phenotypic coefficient of variation (1.23% - 33.71%) in the present study was slightly wider than genotypic coefficient of variation (1.13% - 33.02%) suggesting that environmental factors have high contribution to the observed variation among chickpea accessions. The first four PC axes from the principal component analysis accounted for 91.63% of the multivariate variation among entries indicating a moderate degree of correlation among characters for these entries. The genotypic data generated through RAPD profiling of seven chickpea genotypes were used to study genetic diversity or interrelationship. The pair wise Jaccard’s similarity coefficient ranged from 0.47 (TZCP-3 and TZCP-5) to 0.87 (TZCP-2 and TZCP-4). Finally, this research work helped with the analysis of genetic diversity in chickpea by using different approaches such as morphological and molecular marker system.

scholarly journals Research Article Genetic diversity of cassava landraces cultivated in northern Mato Grosso State, Brazil, using microsatellite markers

2019 ◽  
Vol 18 (3) ◽  
Author(s):  
E.C.M. Pedri ◽  
E.S.S. Hoogerheide ◽  
A.V. Tiago ◽  
E.S. Cardoso ◽  
J.M.A. Pinto ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Mato Grosso ◽  
Research Article

scholarly journals Research Article Influence of the use of manioc on its genetic diversity conservation in a quilombo community in Mato Grosso, Brazil

2019 ◽  
Vol 18 (3) ◽  
Author(s):  
J.R.L. Oler ◽  
E.S.S. Hoogerheide ◽  
J.M.A. Pinto ◽  
A.V. Tiago ◽  
J.F.V. Silva ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Mato Grosso ◽  
Research Article ◽  
Article Influence

scholarly journals Genetic variability in Tambaqui generations of the breeding program in the Central-West Region of Brazil

2021 ◽  
Vol 42 (3Supl1) ◽  
pp. 1785-1796
Author(s):  
Angela Maria Urrea-Rojas ◽  
◽  
Annaiza Braga Bignardi ◽  
Felipe Pinheiro de Souza ◽  
Ed Christian Suzuki de Lima ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Native Species ◽  
Genetic Improvement ◽  
Improvement Program ◽  
Breeding Programs ◽  
Mato Grosso ◽  
West Region ◽  
Fish Breeding ◽  
The Mean

The implementation of fish breeding programs in Brazil has brought significant results in the productivity of tilapia. However, the insertion of native species with great potential (such as Tambaqui Colossoma macropomum) in these programs is still recent, and thus requires genetic information for monitoring and enabling their consolidation into the programs. The objective of the present study was to evaluate the genetic diversity of the parental generation (G0) and two consecutive generations (G1 and G2) in the C. macropomum genetic improvement program, located in the municipality of Sorriso, Mato Grosso, Brazil. Ninety caudal fin samples were collected (30 samples per generation) for DNA extraction. The genetic study implemented seven microsatellite markers (Cm1A8, Cm1A11, Cm1D1, Cm1E3, Cm1F4, Cm1F5, and Cm1H8). A total of 17 alleles were amplified, with variations in the mean number between four to two alleles per locus. The size per locus ranged from 170 to 360 bp. The average inbreeding coefficient was 0.126 (G0), -0.040 (G1), and 0.131 (G2). No null or exclusive alleles were found. The observed heterozygosity values for G1 and G2 demonstrated the preservation of genetic variability (0.453 and 0.409, respectively). In conclusion, the genetic diversity of the parental generation (G0) and the two progenies generations (G1 and G2) were adequate, which demonstrates that the genetic improvement program was conducted correctly; however, it is important to continue to evaluations the genetic diversity of the future progeny.

scholarly journals Distance Only Brings You Closer: Application of ISSR Markers to Analyze Molecular Relationships in Roses (Rosa spp.) - The Symbol of Love

2021 ◽  
Author(s):  
Tanay Joshi ◽  
Santosh Kumar ◽  
Lalit Arya ◽  
Amritbir Riar
Keyword(s):  
Genetic Diversity ◽  
Crop Improvement ◽  
Issr Markers ◽  
Improvement Program ◽  
Promising Tool ◽  
Inter Simple Sequence Repeats ◽  
Upgma Cluster Analysis ◽  
Molecular Relationships ◽  
High Degree ◽  
The Rose

Genetic diversity is inevitable in making any crop improvement program successful. DNA fingerprinting technology to assess the genetic relationship among the selected genotypes for identification and cataloging of different species and cultivars of roses is a promising tool for Rosa genomes. The inter-simple sequence repeats markers (ISSRs) were used to investigate the genetic diversity among twenty-one diverse Rosa genotypes belonging to two different species, Rosa hybrida and R. damascena, and three distinct groups of rose varieties, namely Hybrid Tea, Floribunda, and Damask roses. Twenty-four ISSR primers yielded a total of 280 scorable amplified fragments from 250-1800 bp in length, from which 244 were polymorphic, resulting in an average of 86.4% polymorphism. UPGMA cluster analysis based on Jaccard’s pairwise similarity coefficient values ranged from 0.264 to 0.818, clearly distinguished different species and genotypes, grouping them into three distinct clusters. The results confirmed a high degree of variation in the rose germplasm studied highlighting the potential of improvement in roses for the ornamental and perfume industry.

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