scholarly journals Evaluation of qualitative traits in modified Iranian Red Rey onion and comparison genetic resistance with primary mass selection and Red Azar-shahr cv to Fusarium oxysporum using laboratory and molecular markers

2021 ◽  
Vol 48 (10) ◽  
pp. 6797-6803
Author(s):  
Sayyedeh Mahsan Taghi Shokrgozar ◽  
Mohsen Khodadadi ◽  
Vahid Abdossi ◽  
Vahid Zarrin nia ◽  
Ramin Hajiyan far
Keyword(s):  
Molecular Markers ◽  
Fusarium Oxysporum ◽  
Genetic Resistance ◽  
Mass Selection ◽  
Qualitative Traits ◽  
Primary Mass

scholarly journals Evaluation of Qualitative Traits In Modified Iranian Red Rey Onion And Comparison Genetic Resistance With Primary Mass Selection And Red Azar-Shahr cv To Fusarium Oxysporum Using Laboratory And Molecular Markers

2021 ◽  
Author(s):  
Sayyedeh Mahsan Taghi Shokrgozar ◽  
Mohsen Khodadadi ◽  
Vahid Abdossi ◽  
Vahid Zarrin nia ◽  
Ramin Hajiyan far
Keyword(s):  
Molecular Markers ◽  
Dry Matter ◽  
Genetic Resistance ◽  
Selection Procedure ◽  
Second Step ◽  
Mass Selection ◽  
Genetic Affinity ◽  
Qualitative Traits ◽  
Very High ◽  
Selection Of

Abstract The aim of this study is to evaluate the storage and qualitative feature of modified Red Rey Iranian Onion. Firstly, the modified population was obtained by the selection of superior bulbs, cultivation, its self-pollination and consequently the identification of the best families and implement open pollination between them. In next level, the Red Rey Iranian modified with basic population and Red Azar-shahr cultivar (comparative) was crossed. Our results showed that the selection procedure has leading to improvement in variety of traits in population. Also, the modified Red Rey is significantly superior to the base mass in qualitative traits such as: bulb stiffness, bulb dry matter, TSS, total sugar and glucose; So that the percentage of dry bulb content increased from 10.4% in the basal mass to 11.1% in the modified Red Rey; while spouring and rotting, minerals, and dry matter, vitamin C and fructose-reducing sugar was not affected by genotype. In the second step, resistances to Fusarium wilt disease (laboratory and molecular markers) were evaluated. Based on the results of phenotypic evaluation, the modified Red Rey had the lowest rate and level of infection and the highest score. According to the results of genotypic evaluation, there is a very high genetic affinity between resistant and susceptible cultivars.

IDENTIFICATION OF MOLECULAR MARKERS OF FUSARIUM OXYSPORUM F. SP.DIANTHI BY RAPD

1999 ◽  
pp. 123-132 ◽  
Author(s):  
J.F. Hernandez ◽  
M.A. Posada ◽  
P. del Portillo ◽  
G. Arbeláez
Keyword(s):  
Molecular Markers ◽  
Fusarium Oxysporum

scholarly journals Marker Assisted Selection (MAS) for chickpea Fusarium oxysporum wilt resistant genotypes using PCR based molecular markers

2014 ◽  
Vol 41 (10) ◽  
pp. 6755-6762 ◽  
Author(s):  
Zakia Ahmad ◽  
Abdul Samad Mumtaz ◽  
Abdul Ghafoor ◽  
Amjad Ali ◽  
Mohammad Nisar
Keyword(s):  
Molecular Markers ◽  
Fusarium Oxysporum ◽  
Marker Assisted Selection ◽  
Resistant Genotypes

scholarly journals Molecular Markers for the Scab Resistance (Vf) Region in Apple

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 855C-855 ◽  
Author(s):  
Minou Hemmat ◽  
Norman F. Weeden ◽  
Susan K. Brown
Keyword(s):  
Molecular Markers ◽  
Bulk Segregant Analysis ◽  
Rapd Markers ◽  
Venturia Inaequalis ◽  
Apple Scab ◽  
Genetic Resistance ◽  
Scab Resistance ◽  
Tight Linkage ◽  
Commercially Important ◽  
The Relationship

Apple scab, Venturia inaequalis (Cke.) Wint., is one of the most damaging diseases of apples. Although fungicide sprays have been used to control the disease, genetic resistance in existing commercially important varieties would be desirable. Identification of molecular marker(s) would be helpful in devising biotechnological approaches to control the disease. We used bulk segregant analysis to identify RAPD markers that cosegregate or display a tight linkage with Vf gene in Prima × Spartan cross. Using this approach, we are saturating the region around the scab resistance gene for the purpose of bracketing the locus. We have identified several markers associated with the Vf locus. The closest markers have been isolated and sequenced to be used as SCARs. The relationship and distances of the markers with the Vf locus and other previously reported markers will be discussed.

scholarly journals Chickpea genotypes characteristics on resistance to fusarium Fusarium oxysporum f. sp. ciceris

2018 ◽  
Vol 23 ◽  
pp. 166-169
Author(s):  
V. A. Chekalov ◽  
N. E. Volkova
Keyword(s):  
Polymerase Chain Reaction ◽  
Molecular Markers ◽  
Fusarium Oxysporum ◽  
Molecular Genetic ◽  
Molecular Genetic Analysis ◽  
Chain Reaction ◽  
Resistance Level ◽  
Extraction And Purification ◽  
Polymerase Chain ◽  
Southern Ukraine

Aim. Molecular-genetic analysis of the chickpea genotypes for foc0, foc3, foc4 resistance genes to Fusarium oxysporum f. sp ciceris. Methods. Extraction and purification of DNA, spectrophotometry, polymerase chain reaction, electrophoresis in polyacrylamide gels. Results. 35 chickpea lines and varieties of Ukrainian and foreign breeding characterized according to genotyping on foc0, foc3, foc4 genes of resistance to Fusarium oxysporum f. sp ciceris by the microsatellite markers TA59, TR19 and TR59. Fragments of the expected size for all markers were obtained for samples, for which the resistance level was fixed to certain races. Match between data on the presence of a amplification fragment of a certain size and resistance level among other samples is not found. Conclusions. For 35 chickpea varieties and lines the allele state of foc0, foc3, foc4 genes of resistance to the F. oxysporum f. sp ciceris races 0, 3, 4 is established. The variety ‘Pam’yat’ is recommended as a control of resistance to F. oxysporum f. sp ciceris races 0, 3, 4 in the southern Ukraine conditions. Keywords: chickpea, genes, molecular markers, fusarios, resistance.

scholarly journals Genetic Resistance of Lactuca spp. against Fusarium oxysporum f. sp. lactucae Race 1

HortScience ◽  
2021 ◽  
pp. 1-13
Author(s):  
Jesse J. Murray ◽  
Gulnoz Hisamutdinova ◽  
Germán V. Sandoya ◽  
Richard N. Raid ◽  
Stephanie Slinski
Keyword(s):  
Fusarium Oxysporum ◽  
Durable Resistance ◽  
Management Strategies ◽  
Genetic Resistance ◽  
Segregation Ratio ◽  
Sources Of Resistance ◽  
Breeding Lines ◽  
Plant Introductions ◽  
Soil Pathogen ◽  
Race 1

Fusarium wilt of lettuce is caused by the pathogen Fusarium oxysporum f. sp. lactucae (Fol) and is a growing threat to global lettuce production. Fol was first detected in Florida in 2017 and was subsequently confirmed as race 1. Management strategies for this long-persisting soil pathogen are limited, time-consuming and expensive, and they may lack efficacy. Identifying diverse sources of genetic resistance is imperative for breeding adapted cultivars with durable resistance. The objectives of this study were to identify sources of resistance against a race 1 isolate of Fol in Florida, delineate the relationship between foliar and taproot symptoms, and investigate the inheritance of resistance and partial resistance in two F2 populations. Thirteen experiments were conducted in greenhouse and field locations to characterize the diversity of genetic resistance in the genus Lactuca. Leaf cultivars Dark Lollo Rossa and Galactic; romaine breeding lines 43007, 60182, and C1145; and iceberg breeding line 47083 consistently exhibited low foliar and taproot disease symptoms. Resistance was not identified among the wildtype Lactuca or primitive plant introductions (PI) in this study based on taproot symptoms. An additional test was conducted to study the segregation pattern of Fol resistance between one resistant and one susceptible accession (R × S) and one partial resistant and one susceptible accession (PR × S). The F2 population from ‘60182 × PI 358001-1’ fit the expected segregation ratio for a single recessive locus model, whereas the ratio for ‘Dark Lollo Rossa × PI 358001-1’ did not fit either recessive or dominant single locus models. These sources of resistance are potential candidates for developing commercial cultivars with multiple resistance loci against Fol race 1, especially for the Florida lettuce production system.

scholarly journals The Fusarium oxysporum f. sp. niveum: Causal Agent of Vascular Withering of Watermelon

2021 ◽  
Vol 14 (05) ◽  
Author(s):  
Ernesto Fernández-Herrera ◽  
Tania E. González-Soto ◽  
Irene Iliana Ramirez Bustos Irene Iliana Ramirez Bustos
Keyword(s):  
Fusarium Oxysporum ◽  
Management Practices ◽  
Vascular Tissue ◽  
Citrullus Lanatus ◽  
Correct Diagnosis ◽  
Genetic Resistance ◽  
Commercial Production ◽  
Causal Agent ◽  
Management Alternatives ◽  
The Impact

Objective: To describe Fusarium oxysporum f. sp. niveum (Fon) as the causal agent of vascular withering in the watermelon crop (Citrullus lanatus (Thunb.) Matsum and Nakai). Design/Methodology/Approach: A review of scientific literature (scientific books, notes and articles) was carried out about Fon as the causal agent of vascular withering in the watermelon crop; biology, symptoms, disease cycle, isolation and management alternatives. Results: Withering from Fusarium in watermelon is the main fungal disease of this crop worldwide. Necrosis of the vascular tissue and withering of the plant are the most characteristic symptoms of the disease. There are four races of this fungus (Fon race 0, 1, 2 and 3); the commercial varieties of watermelons have different degrees of resistance to these races. Practices such as the correct diagnosis, use of grafts, solarization, fungicides, biological products and genetic resistance can significantly reduce the impact of the disease on the production. Findings/Conclusions: In Mexico, knowledge about vascular withering of watermelon is scarce despite this disease being one of the factors that limits commercial production. The greatest knowledge about the symptoms, the fungus’s biology, presence and distribution of races, diagnosis and alternatives of Fon management, will allow integrating appropriate management practices that favor the commercial production of the crop.

scholarly journals Variation in the response of melon genotypes to Fusarium oxysporum f.sp. melonis race 1 determined by inoculation tests and molecular markers

2003 ◽  
Vol 52 (2) ◽  
pp. 204-211 ◽  
Author(s):  
Y. Burger ◽  
N. Katzir ◽  
G. Tzuri ◽  
V. Portnoy ◽  
U. Saar ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Fusarium Oxysporum ◽  
Race 1

scholarly journals Applications of molecular markers for bacterial blight resistant varieties in rice (Oryza sativa L.)

2017 ◽  
Vol 9 (4) ◽  
pp. 2309-2314
Author(s):  
A. Premkumar ◽  
Manoj Kumar
Keyword(s):  
Molecular Markers ◽  
Molecular Marker ◽  
Bacterial Blight ◽  
Oryza Sativa L ◽  
Single Gene ◽  
Durable Resistance ◽  
Genetic Resistance ◽  
Recurrent Parent ◽  
Rice Varieties ◽  
Novel Technologies

Bacterial blight is one of devasting disease in almost all rice growing countries. The most effective, eco-nomic and environmental strategy for control of this disease is to develop rice varieties with genetic resistance. However, new pathotype has overcome single gene for resistance in the new cultivars. So, plant breeders are con-centrating to develop high yielding varieties with durable resistance using novel technologies. Molecular marker technology has progressed tremendously in the past decade for genetic improvement of field crops. Molecular markers can improve efficiency of breeding in different ways for trait in segregating population like identify plants with target gene in maximum recovery portion of recurrent parent. The transfer of two or three genes into single variety with the help of molecular marker is expected to lead to more durable resistance. Thus, thus review describes progress made in the development of bacterial blight resistance rice varieties using Marker Assisted Selection.

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