Phenotypic and molecular confirmation of durable adult plant leaf rust resistance (APR) genesLr34+,Lr46+ andLr67+ linked to leaf tip necrosis (LTN) in select registered Indian wheat(T. aestivum)genetic stocks

Sivasamy, M.; Aparna, M.; Kumar, J.; Jayaprakash, P.; Vikas, V. K.; John, P. S.; Rani, Nisha; Satyaprakash,; Sivan, K.; Punniakotti, E.

doi:10.1556/crc.2013.0054

Cited by 10 publications

(14 citation statements)

References 34 publications

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“…Parveen et al (2014), Sharma and Sharma (2014) and Hussain et al (2015) obtained similar results. The absence of Ltn in some genotypes that carried Lr34 and Lr46 validates previous reports by Singh (1992a), Rosewarne et al (2006) and Sivasamy et al (2014).…”

Section: Comparison Of Molecular Data With Field Datasupporting

confidence: 90%

“…In addition, the genotype G18 exhibited high levels of Ltn and marker analysis confirmed the presence of the Lr34 and Lr68 genes in this genotype. These findings indicate that Ltn is quantitatively expressed and the degree of Ltn could be correlated with the number of genes present (Singh 1992a;Sivasamy et al 2014).…”

Section: Comparison Of Molecular Data With Field Datamentioning

confidence: 76%

“…The rAUDPC was calculated as follows: (' genotype e susceptibl of AUDPC genotype the of AUDC rAUDPC × = Scores for Ltn were recorded at the soft dough stage to postulate the presence of APR genes using the following scale: 0 = absent, 1 = low, 2 = moderate and 3 = strong (Sivasamy et al 2014).…”

Section: Phenotypic Characterisation For Adult Plant Resistancementioning

confidence: 99%

“…Leaf tip necrosis (Ltn), a morphological marker that is linked with APR genes (Lr34, Lr46 and Lr67), has been used by many researchers in predicting the presence of APR genes despite its limitations (Tiwari et al 2008;Sivasamy et al 2014). However, the selection of genotypes containing a combination of different rust resistance genes using conventional methods is very time consuming (Mahwish et al 2012;Parveen et al 2014).…”

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confidence: 99%

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Detection of rust resistance in selected Zimbabwean and ICARDA bread wheat (Triticum aestivum) germplasm using conventional and molecular techniques

Mutari

Udupa²,

Mavindidze

et al. 2017

South African Journal of Plant and Soil

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Host resistance is the most effective and economical method to minimise yield losses caused by rusts. The aim of this study was to detect the presence of resistance in 75 wheat genotypes. The presence of the genes Sr2, Sr24, Lr34, Lr37, Lr46 and Lr68 was investigated using simple sequence repeat and sequence tagged site markers. Quantitative aspects of resistance to leaf rust were assessed through infection response, disease severity, coefficient of infection (CI), disease incidence (DI), leaf tip necrosis (Ltn) and area under disease progress curve (AUDPC) under natural epidemics. Highly significant (p ≤ 0.001) differences were observed among the genotypes for CI, DI, AUDPC and relative AUDPC (rAUDPC). Twenty genotypes exhibited high levels of adult-plant resistance, showing CI less than 20% and AUDPC less than 300%, with moderately susceptible to susceptible reactions. The most frequently occurring gene was Lr46 (21%), followed by Lr68 (20%), Lr34 (19%), Lr37 (11%), and Sr24 (0%). Selection for Lr34 and Lr46 based on Ltn alone can sometimes be misleading because of its variable expression in different genetic backgrounds. Cultivars grown in Zimbabwe lacked important rust resistance genes.

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Section: Comparison Of Molecular Data With Field Datasupporting

confidence: 90%

Section: Comparison Of Molecular Data With Field Datamentioning

confidence: 76%

Section: Phenotypic Characterisation For Adult Plant Resistancementioning

confidence: 99%

mentioning

confidence: 99%

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Detection of rust resistance in selected Zimbabwean and ICARDA bread wheat (Triticum aestivum) germplasm using conventional and molecular techniques

Mutari

Udupa²,

Mavindidze

et al. 2017

South African Journal of Plant and Soil

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“…Instytut Hodowli i Aklimatyzacji Roślin -Państwowy Instytut Badawczy, Radzików 1 Zakład Genetyki Hodowli Roślin Oleistych, Oddział w Poznaniu 2 Zakład Nasiennictwa i Nasionoznawstwa 3 Samodzielna Pracownia Oceny Jakości Produktów Roślinnych e-mail: ibart@nico.ihar.poznan.pl Stan badań dla hodowli roślin białkowych w Polsce w celu poprawy krajowego bilansu białkowego…”

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XIV OGÓLNOPOLSKA KONFERENCJA NAUKOWA NAUKA DLA HODOWLI I NASIENNICTWA ROŚLIN UPRAWNYCH ZAKOPANE, 5.02 — 8.02.2019 r.

Ihar

2019

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Registration of ‘Runde’ spring bread wheat cultivar

Mavindidze

Mutari²,

Kutywayo

et al. 2023

J of Plant Registrations

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‘Runde’ (Reg. no. CV‐1201, PI 702366; S02147‐7H‐0N‐2H‐0N) soft white spring bread wheat (Triticum aestivum L.) cultivar was developed by Crop Breeding Institute and released in December 2016 through the National Variety Release Committee. Runde was selected from a cross between S98066‐7H‐0G‐1H‐0N and F99012 made in 2002 at Harare Research Station. S98066‐7H‐0G‐1H‐0N is an experimental line made from a cross between F97009 (International Maize and Wheat Improvement Center [CIMMYT] line) and SC91155‐4H‐0G‐0H‐0G‐6G‐0N (Crop Breeding Institute line). F99012 is an experimental line developed by CIMMYT. Runde (S02147‐7H‐0N‐2H‐0N) is a product of a 2002 cross made in Zimbabwe as cross no. 147, using the pedigree method. Runde is an early maturing, rust tolerant, and high yielding cultivar. It is generally large‐seeded (49 g/1000 grains). The genotype was among the best performing cultivars with tolerance to rusts due to the presence of leaf rust and stem rust resistance genes, Lr34, Sr2, and Lr68. It has high flour extraction potential, good dough mixing characteristics, and high flour concentration.

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Phenotypic and molecular confirmation of durable adult plant leaf rust resistance (APR) genesLr34+,Lr46+ andLr67+ linked to leaf tip necrosis (LTN) in select registered Indian wheat(T. aestivum)genetic stocks

Cited by 10 publications

References 34 publications

Detection of rust resistance in selected Zimbabwean and ICARDA bread wheat (Triticum aestivum) germplasm using conventional and molecular techniques

Detection of rust resistance in selected Zimbabwean and ICARDA bread wheat (Triticum aestivum) germplasm using conventional and molecular techniques

XIV OGÓLNOPOLSKA KONFERENCJA NAUKOWA NAUKA DLA HODOWLI I NASIENNICTWA ROŚLIN UPRAWNYCH ZAKOPANE, 5.02 — 8.02.2019 r.

Registration of ‘Runde’ spring bread wheat cultivar

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