scholarly journals A comparative analysis of genetic distances among 24 upland cotton genotypes using RAPD markers and phenotypic characters

2002 ◽  
Vol 2 (1) ◽  
pp. 85-96 ◽  
Author(s):  
T.A. Teixeira-Cabral ◽  
J.C.V. Penna ◽  
L.R. Goulart
Keyword(s):  
Comparative Analysis ◽  
Upland Cotton ◽  
Rapd Markers ◽  
Genetic Distances ◽  
Phenotypic Characters ◽  
Cotton Genotypes

Studying of economically valuable traits of introgressivе genotypes of upland cotton

2019 ◽  
Vol 1 (3) ◽  
pp. 17-20
Author(s):  
Asliddin T. Sadikov
Keyword(s):  
Comparative Analysis ◽  
Upland Cotton ◽  
Economically Valuable Traits ◽  
Cotton Genotypes ◽  
Standard Cultivar

Some economically valuable traits of upland cotton genotypes are being considered in comparison with standard cultivar “Hisor”. Based on the results, it was established that the yield of raw cotton for all studied genotypes is 66.4-100.1 g/plant. In a comparative analysis of highly productive genotypes, 3 genotypes were distinguished – ALC-86/6 x Sorbon, DP-4025 x Dusti-IZ, NAD-53 x Sorbon, varying from 95.0 to 100.1 g/plant, exceeding the standard cultivar “Hisor” (40,8 g/plant) by 54,2-59,3 g/plant.

Morphological and molecular evidence places Maronina into synonymy with Protoparmelia (Ascomycota: Lecanorales)

2011 ◽  
Vol 43 (6) ◽  
pp. 561-567 ◽  
Author(s):  
K. PAPONG ◽  
G. KANTVILAS ◽  
H. T. LUMBSCH
Keyword(s):  
Dna Sequence ◽  
Sequence Data ◽  
Distinct Species ◽  
Genetic Distances ◽  
Molecular Evidence ◽  
New Combinations ◽  
Secondary Chemistry ◽  
Phenotypic Characters ◽  
Dna Sequence Data ◽  
Phylogenetic Placement

AbstractThe phylogenetic placement of the genus Maronina was studied, based chiefly on phenotypic characters such as thallus colour and anatomy, secondary chemistry, the anatomy of the excipulum and the ascus-type. DNA sequence data of mitochondrial and nuclear ribosomal loci from some of the species support the hypothesis that Maronina is nested within Protoparmelia. Hence, Maronina is reduced to synonymy with Protoparmelia. Comparison of genetic distances suggests that the two varieties within M. orientalis should be regarded as distinct species. Consequently, the new combinations Protoparmelia australiensis (Hafellner & R. W. Rogers) Kantvilas et al., P. corallifera (Kantvilas & Papong) Kantvilas et al., P. hesperia (Kantvilas & Elix) Kantvilas et al., P. multifera (Nyl.) Kantvilas et al., and P. orientalis (Kantvilas & Papong) Kantvilas et al. are proposed.

scholarly journals Divergência genética entre acessos de mentrasto do Estado do Tocantins através de marcadores RAPD

2013 ◽  
Vol 4 (4) ◽  
pp. 290-298
Author(s):  
Elainy Martins Oliveira ◽  
Waldesse Oliveira Junior ◽  
Jaqueline Oliveira ◽  
Henrique Guilhon De Castro
Keyword(s):  
Genetic Diversity ◽  
Rapd Markers ◽  
Geographic Location ◽  
Genetic Distances ◽  
Similarity Coefficients ◽  
Ageratum Conyzoides ◽  
Genetic Studies ◽  
Low Degree ◽  
Medicinal Properties ◽  
Degree Of Association

Ageratum conyzoides (Asteraceae) is known in Brazil for its medicinal properties being mainly used as painkiller and anti-inflammatory. Due to the existence of few genetic studies for this species, this work aimed to characterize the genetic diversity among nine accessions from different sites at Tocantins state, to provide information about its genetic resources. Similarity coefficients obtained varied from 48% to 80%, result of amplification of 102 fragments, of which 72 (70.5%) were polymorphic. Groupment analysis allowed the differentiation in three groups. One of them was distinguished because it presented the highest similarity among all, being composed by ANA and NAT (80% similarity). In general, these data showed there is low degree of association between the geographic location of the accessions and the genetic distances. So, the collected accession ns in Tocantins state presented considerable genetic variability and the efficiency of RAPD markers for such characterization was here proven.

scholarly journals Assessment of genetic diversity among surian Toona sinensis Roem in progenies test using random amplified polymorphic DNA markers

2018 ◽  
Vol 22 (1) ◽  
pp. 22
Author(s):  
Jayusman Jayusman ◽  
Muhammad Na’iem ◽  
Sapto Indrioko ◽  
Eko Bhakti Hardiyanto ◽  
ILG Nurcahyaningsih
Keyword(s):  
Genetic Diversity ◽  
Dna Markers ◽  
Rapd Markers ◽  
Random Amplified Polymorphic Dna ◽  
Management Strategies ◽  
Genetic Distances ◽  
Sampled Data ◽  
Toona Sinensis ◽  
The Mean ◽  
Individual Trees

Surian Toona sinensis Roem is one of the most widely planted species in Indonesia. This study aimed to estimate the genetic diversity between a number of surian populations in a progeny test using RAPD markers, with the goal of proposing management strategies for a surian breeding program. Ninety-six individual trees from 8 populations of surian were chosen as samples for analysis. Eleven polymorphic primers (OP-B3, OP-B4, OP-B10, OP-H3, OP-Y6, OP-Y7, OP-Y8, OP-Y10, OP-Y11, OP-Y14, and OP-06) producing reproducible bands were analyzed for the 96 trees, with six trees per family sampled. Data were analyzed using GenAlEx 6.3, NTSYS 2.02. The observed percentage of polymorphic loci ranged from 18.2% to 50%. The mean level of genetic diversity among the surian populations was considered to be moderate (He 0.304). Cluster analysis grouped the genotypes into two main clusters, at similarity levels of 0.68 and 0.46. The first two axes of the PCoA explained 46.16% and 25.54% of the total variation, respectively. The grouping of samples into clusters and subclusters did not correspond with family and their distances, but the grouping was in line with the genetic distances of the samples.

scholarly journals Screening of upland cotton genotypes (Gossypium hirsutum L.) against cotton verticillium (Verticillium dahliae Kleb.) Wilt

2019 ◽  
Vol 48 (4) ◽  
pp. 1185-1192
Author(s):  
Sadettin Çelik ◽  
Adem Bardak ◽  
Oktay Erdoğan
Keyword(s):  
Verticillium Wilt ◽  
Upland Cotton ◽  
Wilt Disease ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Gossypium Hirsutum L ◽  
Cotton Genotypes ◽  
Susceptible Control ◽  
Verticillium Dahliae Kleb ◽  
Plot Design

Screening of upland cotton genotypes against Verticillium wilt disease was conducted. The 268 upland cotton genotypes (Carmen and Acala Maxxa cultivar were tolerant- control while cvs. Cukurova 1518 and Acala SJ2 were susceptible-control) were screened against defoliating (PYDV6) and non-defoliating (Vd11) pathotypes of the fungus in a randomized plot design with four replications in growth chamber. Field experiment was established according to the augmented experimental design. Variance analysis was significant (p ≤ 0.05) for all traits against Verticillium wilt. Cvs. Semerkant Uzbek and Taskent 6 were more tolerant than the tolerant-control cultivars against both pathotypes. Most of the genotypes were tolerant in field trial in terms of disease severity that was the lowest for STN K311 genotype in both periods. The highest seed cotton yield was obtained in genotypes as BA119, Okra 204, H-23, Gedera-5, PI 528420 and Acala Royale, which were moderately tolerant to the wilt disease.

Comparative analysis of maize lines VIR-27 and ChK-218 using SSR- and RAPD-markers

2007 ◽  
Vol 41 (6) ◽  
pp. 343-349
Author(s):  
D. N. Maydanyuk ◽  
I. O. Andreev ◽  
V. A. Kunakh
Keyword(s):  
Comparative Analysis ◽  
Rapd Markers

scholarly journals Genetic variation of Indian potato (Solanum tuberosum L.) genotypes using chromosomal and RAPD markers

2010 ◽  
Vol 10 (3) ◽  
pp. 238-246 ◽  
Author(s):  
Anath Bandhu Das ◽  
Iswar Chandra Mohanty ◽  
Dawanidhi Mahapatra ◽  
Suprava Mohanty ◽  
Ashutosh Ray
Keyword(s):  
Genetic Diversity ◽  
Rapd Markers ◽  
Solanum Tuberosum L ◽  
Chromosome Analysis ◽  
Genetic Distances ◽  
Chromosome Length ◽  
Similarity Coefficients ◽  
Varietal Improvement ◽  
And Cluster Analysis ◽  
4C Dna Content

Genetic diversity in thirty Indian potatoes were analyzed employing karyotype, genome size and RAPD markers. Chromosome analysis revealed 2n = 4x = 48 except cv. K. Chandramukhi (2n = 4x + 2 = 50). Total genomic chromosome length and chromosome volume varied from 21.14µm in cv. K. Pukhraj to 31.91µm in cv. MS/89-60 and 14.31µm³ in cv. MS/92-1090 to 33.16µm³ in cv. JW-160 respectively. 4C DNA content was significantly varied from 3.640 pg (~891 Mbp) in cv. MS/92-1090 to 11.12 pg (~2747 Mbp) in cv. K. Chandramukhi. RAPD revealed 131 amplified DNA fragments (300 to 2200 bp) with 79 unique bands (7 to 71% polymorphism) among the genotypes. Similarity coefficients (ranged from 0.29 to 0.93) and cluster analysis reflected the expected trends in relationships of the full and half-sib potato genotypes. Genetic distances obtained from a dendrogram could help breeders to choose the diverse parents for a breeding program aimed at varietal improvement.

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