Genetic analysis of durable powdery mildew resistance in a common wheat line

Peusha, Hilma; Lebedeva, T. V.; Priilinn, O.; Enno, T.

doi:10.1034/j.1601-5223.2002.1360304.x

Cited by 9 publications

(3 citation statements)

References 17 publications

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“…On the other hand, the resistance in the crosses 72 x Atilla-12 and 72 x Basribey was regulated by one dominant and one recessive gene, and two dominant genes in the cross 72 x Golia (Table 5). In accordance with our results, Peusha et al (2002) suggested that resistance at the adult stage in wheat cultivars was controlled by two independent dominant genes and Griffey and Das (1994) estimated the number of genes controlling adult plant resistance in the wheat cultivars Knox and Massey to be two to three. Besides, Srnic (2003) reported that in greenhouse studies powdery mildew resistance in four germplasm x germplasm populations segregated as a digenic trait.…”

Section: Resultssupporting

confidence: 71%

Inheritance and combining ability in some powdery mildew resistant wheat lines

İlker¹,

Tonk²,

Tosun³

et al. 2009

CBAB

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-Three commercial varieties susceptible to powdery mildew and five high-yielding genotypes with resistance to powdery mildew from the CIMMYT were used in this study to estimate the general combining ability of parents, to detect gene actions of resistance against powdery mildew and identify the most suitable genotype for transferring resistance genes to the commercial varieties. In conclusion, monogenic inheritance was detected in the F 2 generation in crosses of parent 48 with two commercial varieties, Atilla-12 and Basribey. The inheritance of parent 72 was digenic in crosses with the same commercial varieties. Parent 48 can be recommended as a parent for powdery mildew resistance and improvement of varieties towards higher spike length, spikelet and kernel numbers per spike and plant height. Parent 72 may also be used for powdery mildew resistance to develop varieties with greater plant height.

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Section: Resultssupporting

confidence: 71%

Inheritance and combining ability in some powdery mildew resistant wheat lines

İlker¹,

Tonk²,

Tosun³

et al. 2009

CBAB

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“…Screening of old wheat cultivars, landraces and related species for resistance to powdery mildew started in the 1930's (Hsam and Zeller, 2002) and Pm genes have since been identified in many different, widely distributed wheat cultivars and landraces. Non-major gene resistance has been sought such as the durable adult plant resistance found in the landrace accession k-15560 (Peusha et al, 2002).…”

Section: Powdery Mildewmentioning

confidence: 99%

Cereal landraces for sustainable agriculture. A review

Newton¹,

Akar²,

Baresel

et al. 2010

Agron. Sustain. Dev.

214

142

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Modern agriculture and conventional breeding and the liberal use of high inputs has resulted in the loss of genetic diversity and the stagnation of yields in cereals in less favourable areas. Increasingly landraces are being replaced by modern cultivars which are less resilient to pests, diseases and abiotic stresses and thereby losing a valuable source of germplasm for meeting the future needs of sustainable agriculture in the context of climate change. Where landraces persist there is concern that their potential is not fully realised. Much effort has gone into collecting, organising, studying and analysing landraces recently and we review the current status and potential for their improved deployment and exploitation, and incorporation of their positive qualities into new cultivars or populations for more sustainable agricultural production. In particular their potential as sources of novel disease and abiotic stress resistance genes or combination of genes if deployed appropriately, of phytonutrients accompanied with optimal micronutrient concentrations which can help alleviate aging-related and chronic diseases, and of nutrient use efficiency traits. We discuss the place of landraces in the origin of modern cereal crops and breeding of elite cereal cultivars, the importance of on-farm and ex situ diversity conservation; how modern genotyping approaches can help both conservation and exploitation; the importance of different phenotyping approaches; and whether legal issues associated with landrace marketing and utilisation need addressing. In this review of the current status and prospects for landraces of cereals in the context of sustainable agriculture, the major points are the following: (1) Landraces have very rich and complex ancestry representing variation in response to many diverse stresses and are vast resources for the development of future crops deriving many sustainable traits from their heritage. (2) There are many germplasm collections of landraces of the major cereals worldwide exhibiting much variation in valuable morphological, agronomic and biochemical traits. The germplasm has been characterised to variable degrees and in many different ways including molecular markers which can assist selection. (3) Much of this germplasm is being maintained both in long-term storage and on farm where it continues to evolve, both of which have their merits and problems. There is much concern about loss of variation, identification, description and accessibility of accessions despite international strategies for addressing these issues. (4) Developments in genotyping technologies are making the variation available in landraces ever more accessible. However, high quality, extensive and detailed, relevant and appropriate phenotyping needs to be associated with the genotyping to enable it to be exploited successfully. We also need to understand the complexity of the genetics of these desirable traits in

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“…Genetic studies confirmed that cultivar 'Amigo', has Pm17 and leaf rust resistance gene Lr24 on a translocated chromosome involving 1 A and 1B, respectively (Hsam and Zeller, 2006), the Pm8/ Pm1 alleles at the locus (Mohler et al, 2008) and Amigo is a source of Sr24/Lr24 (The et al,1991). There are many explanations for the number of genes that conditioned resistance to powdery mildew in wheat (Peusha et al, 2002, Srnic, 2003Ilker et al, 2009). Adult plant resistance (APR) to cereal fungal diseases provide protection in a crop's post-seedling stages typically between tillering and booting according to Adult Plant Resistance Fact Sheets GRDC, Nov. (2012).…”

Section: Introductionmentioning

confidence: 96%

Inheritance of Adult Plant Resistance to Powdery Mildewin Some Crosses of Bread Wheat

El-Shamy

Mohamed

Elmassry³

2021

Zagazig Journal of Agricultural Research

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Eight F 2 populations of crosses carried out between the resistant cultivar Amigo and 8 susceptible bread wheat cultivars were evaluated to study the inheritance of resistance to powdery mildew (Pm) caused by Blumeria. graminis f.sp. tritici and also to estimate the number and action of genes related to adult plant resistance. The response to powdery mildew disease was studied in a conditioned glass house and natural infection in the open field. Individual plants were scored and classified as resistant or susceptible according to a specific scale. The tested local wheat cultivars showed susceptible responses at both seedling and adult stages, while the Amigo cultivar was susceptible at seedling stage and resistant at adult stage. The F2 plants of all tested crosses were susceptible at seedling stage and resistant at the adult stage. Obtained results revealed that the inheritance of resistance is ruled by a single gene in the crosses Amigo/Sids12 and Amigo/Misr2; and by two recessive genes in Amigo/Gemmeiza 11 cross. The inheritance of resistance in F2 populations of Amigo/Sakha 95, and Amigo/Giza 171 crosses is controlled by two dominant genes, while in Amigo/Gemmeiza 12, Amigo/Sakha 94 and Amigo/Misr1 crosses is conditioned by two incompatible dominant genes. Sakha 95 and Giza 171 wheat cultivars were the best and suitable for transferring the adult plant resistance gene Pm17.

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Genetic analysis of durable powdery mildew resistance in a common wheat line

Cited by 9 publications

References 17 publications

Inheritance and combining ability in some powdery mildew resistant wheat lines

Inheritance and combining ability in some powdery mildew resistant wheat lines

Cereal landraces for sustainable agriculture. A review

Inheritance of Adult Plant Resistance to Powdery Mildewin Some Crosses of Bread Wheat

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