Seedling and Slow Rusting Resistance to Leaf Rust in Chinese Wheat Cultivars

Li, Z.F.; Xia, X. C.; He, Zhonghu; Li, X.; Zhang, L.J.; Wang, H.Y.; Meng, Qingfang; Yang, Wenxiang; Li, G.Q.; Liu, D.Q.

doi:10.1094/pdis-94-1-0045

Cited by 73 publications

(56 citation statements)

References 31 publications

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“…According to Nzuve et al (2012), the available resistance genes in these materials overcame the leaf rust virulence in the field and led to statistically low disease severities despite the compatible host-pathogen reactions. Previously, Ali et al (2007), Li et al (2010), Tabassum (2011) and Safavi (2012) also used final rust severity to assess slow rusting behaviour of wheat lines. On the other hand Kubsa, Galama and PBW 343 showed final rust severities between 31 and 50% in 2014 cropping season and were regarded as possessing moderate levels of slow rusting resistance.…”

Section: Final Rust Severitymentioning

confidence: 99%

Evaluation of wheat cultivars for slow rusting resistance to leaf rust (Puccinia trticina Eriks) in Ethiopia

Hei¹

2017

Afr. J. Plant Sci.

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Section: Final Rust Severitymentioning

confidence: 99%

Evaluation of wheat cultivars for slow rusting resistance to leaf rust (Puccinia trticina Eriks) in Ethiopia

Hei¹

2017

Afr. J. Plant Sci.

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“…These Lr genes, plus the probably postulated one gave evidence that most of the tested cultivars are considered superior and excellent as resistant wheat materials against leaf rust [32][33][34][35].…”

Section: Discussionmentioning

confidence: 99%

“…Giza168 and Gemmeiza9. Seven Lr genes, 22a, 27,30,32,34,42 and 44 were absent within wheat cultivars tested.…”

Section: Multipathotypes Testmentioning

confidence: 96%

Identification of Leaf Rust Resistance Genes in Egyptian Wheat Cultivars by Multipathotypes and Molecular Markers

Abou-Elseoud¹

2014

JPS

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A total of twenty leaf rust resistance genes (Lr genes) were postulated in nine Egyptian wheat cultivars based on infection types (ITs) expressed on the tested cultivars by 72 Puccinia triticina pathotypes compared with the ITs expressed on the monogenic lines. The most carrier genes cultivars were Giza168 and Misr1 each may contain five genes i.e. Lr2c,10,18,24, 41 and Lr3,10,19, 22b,24, respectively. Five cultivars, Sakha94, Gemmeiza9, Gemmeiza10, Sids12 and Misr2 each probably contain four genes i.e. Lr9,19,29, 37; Lr18,21,24, 41; Lr3,9,19,29; Lr9,19,26, 29 and Lr3,10,19,26, respectively. Gemmeiza11 was the least cultivar carrying genes; it probably carries just two genes i.e. Lr24 and Lr41. The most postulated genes were Lr19 and Lr24, each postulated within five cultivars followed by Lr41 within four cultivars. Five Lr genes, Lr3, Lr9, Lr10, Lr26 and Lr29 each within three cultivars. The lowest postulated genes were Lr2c, Lr21, Lr22b and Lr37 each of them was postulated within only one cultivar. Five Lr genes, Lr9, Lr10, Lr19, Lr24 and Lr26 were identified by PCR-based molecular marker. The Lr9 gene was identified in cultivar Sids12 while, Lr10 was identified in cultivar Misr1. The Lr19 was present in two cultivars, Misr1 and Misr2. The Lr24 and Lr26 were absent in all the screened Egyptian cultivars. The obtained results for Lr9, Lr10, Lr19, Lr24 and Lr26 marker were in agreement with and confirm their identification by gene postulation. Markers for Lr9, Lr10 and Lr19 may be useful in marker-assisted breeding. Our findings showed the usefulness of the molecular marker in identifying leaf rust resistance genes in wheat cultivars, especially when used in conjunction with multipathotypes test at the pre-breeding stage. This approach may help understanding the wheat -P. triticina interaction and provide information to build an effective management program for leaf rust disease.

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“…With slow rusting, disease progression is not prevented but rather slowed. The result is intermediate to low levels of disease with all the pathotypes of the particular pathogen (Duvellier et al, 2007;Li et al 2010). Such quantitative resistance *Corresponding author.…”

Section: Introductionmentioning

confidence: 99%

Molecular and genetic study of wheat rusts

Le¹,

N²,

Botes³

et al. 2013

Afr. J. Biotechnol.

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Puccinia triticina, Puccinia graminis and Puccinia striiformis cause leaf, stem and yellow rust, respectively. Wheat rusts can cause losses as high as 70%. The rusts ability to evolve fungicide resistance has resulted in the use of resistant cultivars as the primary method of control. Breeding resistant cultivars is a long process and requires an accurate picture of the current and future pathogen population. Differentiation of wheat rust pathotypes using conventional plant pathology techniques is time consuming, labour intensive and requires the services of a highly skilled and experienced plant pathologist. Modern molecular biology techniques have the potential to aid the conventional techniques and provide fast, accurate same-day results. Microsatellite markers were used to differentiate P. triticina and P. striiformis pathotypes. Amplified fragment length polymorphisms (AFLP) were used to differentiate stem rust P. graminis pathotypes. Phylogenetic trees were created for leaf and stem rust pathotypes. Field isolates of leaf, stem and yellow rust were collected from eleven sites across the Western Cape Province. Microsatellite markers were used to type leaf and yellow rust isolates. AFLP markers could not be used on field isolates due to the presence of plant DNA. Novel alleles found in the Leaf and yellow rusts isolates prevented the assigning of a specific pathotype to each isolate. UVPrt10 (25.2%) and UVPrt9 (21.5%) were the most prevalent leaf rust pathotypes. Only 6E16A+ was identified in the yellow rust isolates. Pathotype incidence was similar to previous studies. The prevalence of multiple pathotypes with a variety of virulence genes in the rust population shows that breeding lines with single major resistance genes will not be effective and breeding programmes should concentrate on lines that exhibit quantitative resistance.

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Seedling and Slow Rusting Resistance to Leaf Rust in Chinese Wheat Cultivars

Cited by 73 publications

References 31 publications

Evaluation of wheat cultivars for slow rusting resistance to leaf rust (Puccinia trticina Eriks) in Ethiopia

Evaluation of wheat cultivars for slow rusting resistance to leaf rust (Puccinia trticina Eriks) in Ethiopia

Identification of Leaf Rust Resistance Genes in Egyptian Wheat Cultivars by Multipathotypes and Molecular Markers

Molecular and genetic study of wheat rusts

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