Breeding for Resistance to Orobanche

Nassib, A. M.; Kineber, Ahmed Farouk; Khalil, Sayed M.S.

doi:10.1007/978-94-009-7499-9_20

Cited by 43 publications

(22 citation statements)

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“…The influence of root density and their distribution in-depth on escape to broomrape infection has been pointed out in faba bean (Nassib et al 1982) and chickpea (Rubiales et al 2003a, b). We did not study the amount of roots and their spatial distribution in the soil, but we might expect significant variation among the pea collection.…”

Section: Discussionmentioning

confidence: 97%

Search for Resistance to Crenate Broomrape (Orobanche crenata Forsk.) in Pea Germplasm

Rubiales

Moreno²,

Sillero³

2005

Genet Resour Crop Evol

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Orobanche crenata Forsk. is a major constraint for pea production in Mediterranean and East Asian countries. To solve the problem of the lack of resistance in pea cultivars, a screening for resistance was performed under field conditions in a germplasm collection of 575 accessions of Pisum sativum L. No complete resistance was found but varying levels of resistance were identified and confirmed in further field seasons and in pots experiments in the greenhouse. Resistance was quantitative resulting in a reduction in the number of emerged broomrapes per pea plant. Broomrape infection and expression of resistance proved to be highly influenced by environmental conditions. Resistance is the consequence of the combination of several resistance mechanisms preventing or hampering establishment of broomrape and/or development of established tubercles. Resistance identified could suffice to prevent broomrape damage in normal years, but might need to be implemented with other control measures in very conducive years. Resistant accessions have been crossed with pea cultivars and submitted to a breeding programme in which accumulation of levels of resistance to broomrape is a priority.

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Section: Discussionmentioning

confidence: 97%

Search for Resistance to Crenate Broomrape (Orobanche crenata Forsk.) in Pea Germplasm

Rubiales

Moreno²,

Sillero³

2005

Genet Resour Crop Evol

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“…However, little resistance to O. crenata was available until the appearance of the Egyptian line F402 (Nassib et al, 1982). This allowed the development of several resistant cultivars (Cubero et al, 1994;Khalil & Erskine, 1999).…”

Section: Sources Of Resistancementioning

confidence: 97%

Screening techniques and sources of resistance against parasitic weeds in grain legumes

et al. 2006

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A number of parasitic plants have become weeds, posing severe constraints to major crops including grain legumes. Breeding for resistance is acknowledged as the major component of an integrated control strategy. However, resistance against most parasitic weeds is difficult to access, scarce, of complex nature and of low heritability, making breeding for resistance a difficult task. As an exception, resistance against Striga gesnerioides based on a single gene has been identified in cowpea and widely exploited in breeding. In other crops, only moderate to low levels of incomplete resistance of complex inheritance against Orobanche species has been identified. This has made selection more difficult and has slowed down the breeding process, but the quantitative resistance resulting from tedious selection procedures has resulted in the release of cultivars with useful levels of incomplete resistance. Resistance is a multicomponent event, being the result of a battery of escape factors or resistance mechanisms acting at different levels of the infection process. Understanding these will help to detect existing genetic diversity for mechanisms that hamper infection. The combination of different resistance mechanisms into a single cultivar will provide durable resistance in the field. This can be facilitated by the use of in vitro screening methods that allow highly heritable resistance components to be identified, together with adoption of marker-assisted selection techniques.

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“…Varying levels of resistance against broomrape have been identified in field screenings, but no complete resistance has been identified so far (Ter Borg et al, 1994;Sillero et al, 1996;Kharrat, 1999;Khalil & Erskine, 1999). Considerable attention has been devoted to exploiting the genetic resistance of faba bean F402 identified by Egyptian scientists early in the seventies (Nassib et al, 1982). As a result, resistant cultivars have been released to farmers in Egypt under the commercial names 'Giza 674', 'Giza 429' and 'Giza 843' (Khalil & Erskine, 1999).…”

Section: Resistance To Biotic Stressesmentioning

confidence: 99%

Faba bean breeding for resistance against biotic stresses: Towards application of marker technology

et al. 2006

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Faba beans are adversely affected by numerous fungal diseases leading to a steady reduction in the cultivated area in many countries. Major diseases such as Ascochyta blight (Ascochyta fabae), rust (Uromyces viciae-fabae), chocolate spot (Botrytis fabae), downy mildew (Peornospora viciae) and foot rots (Fusarium spp.) are considered to be the major constraints to the crop. Importantly, broomrape (Orobanche crenata), a very aggressive parasitic angiosperm, is the most damaging and widespread enemy along the Mediterranean basin and Northern Africa. Recent mapping studies have allowed the identification of genes and QTLs controlling resistance to some of these diseases. In case of broomrape, 3 QTLs explained more than 70% of the phenotypic variance of the trait. Concerning Ascochyta, two QTLs located in chromosomes 2 and 3 explained 45% of variation. A second population sharing the susceptible parental line also revealed two QTLs, one of them likely sharing chromosomal location and jointly contributing with a similar percentage of the total phenotypic variance. Finally, several RAPD markers linked to a gene determining hypersensitive resistance to race 1 of the rust fungus U. viciae-fabae have also been reported. The aim of this paper is to review the state of the art of gene technology for genetic improvement of faba bean against several important biotic stresses. Special emphasis is given on the application of marker technology, and Quantitative Trait Loci (QTL) analysis for Marker-Assisted Selection (MAS) in the species. Finally, the potential use of genomic tools to facilitate breeding in the species is discussed. The combined approach should expedite the future development of lines and cultivars with multiple disease resistance, one of the top priorities in faba bean research programs.

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Breeding for Resistance to Orobanche

Cited by 43 publications

References 1 publication

Search for Resistance to Crenate Broomrape (Orobanche crenata Forsk.) in Pea Germplasm

Search for Resistance to Crenate Broomrape (Orobanche crenata Forsk.) in Pea Germplasm

Screening techniques and sources of resistance against parasitic weeds in grain legumes

Faba bean breeding for resistance against biotic stresses: Towards application of marker technology

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