Genetic and Genomic Tools in Sunflower Breeding for Broomrape Resistance

Cvejić, Sandra; Radanović, Aleksandra; Dedić, Boško; Jocković, Milan; Jocić, Siniša; Miladinović, Dragana

doi:10.3390/genes11020152

Cited by 27 publications

(24 citation statements)

References 68 publications

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“…The accelerated progress in the genomic and biotechnological research currently happening in pea [34,62,63], will soon facilitate gene discovery and the development of breeder's friendly molecular markers allowing efficient marker assisted selection, as has already been achieved in sunflower breeding for O. cumana resistance [64]. We are hungry to apply these developments into pea breeding for O. crenata resistance.…”

Section: Discussionmentioning

confidence: 99%

Pea Breeding Lines Adapted to Autumn Sowings in Broomrape Prone Mediterranean Environments

et al. 2021

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In Mediterranean environments, with mild winters and dry summers, peas are planted in autumn or early winter to profit from winter rain and to avoid terminal drought and high summer temperatures. The root parasitic weed broomrape (Orobanche crenata) appears as a major limiting factor under these conditions. To address such specific growing conditions and associated constraints, targeted breeding is needed. We present here recent achievements in the development of pea lines arising from a wide hybridization program incorporating resistance to broomrape and to powdery mildew (Erysiphe pisi) from landraces and wild relatives. Their adaption to autumn sowings under Mediterranean rain fed conditions, and their agronomic performance and resistance to prevailing diseases is compared with those of check cultivars in a multi-environment field test with nine trials performed over three seasons. HA-GGE biplots were a powerful tool for comparison among accessions in terms of performance and stability for each trait assessed. Like this, breeding lines NS22, NS34, NS8, NS39, NS35, NS21 and NS83 over-yielded all check cultivars. Grain yield was strongly affected by broomrape infection, with little influence of powdery mildew and ascochyta blight. All breeding lines studied showed high to moderate resistance to broomrape, whereas all check cultivars were severely infected. Broomrape infection was not correlated with days to flowering, whereas powdery mildew infection was favored by long cycles. Broomrape infection was enhanced by mild winter temperatures before flowering and spring rain, whereas high spring temperatures hampered broomrape development.

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Section: Discussionmentioning

confidence: 99%

Pea Breeding Lines Adapted to Autumn Sowings in Broomrape Prone Mediterranean Environments

et al. 2021

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“…Vertical resistances are mainly governed by major genes that have a gene-for-gene relationship with a pathogen avirulence factor, thus generating a hypersensitive response (HR) to a specific race and most often preventing the development of the pathogen. Although their use is fairly simple, the history of O. cumana parasitizing sunflower specifically is remarkable [ 197 ]. Indeed, this example has shown that the resistances thus successively generated are unfortunately not sustainable.…”

Section: Strategies For Effective Parasitic Weed Managementmentioning

confidence: 99%

Management of Infection by Parasitic Weeds: A Review

Fernández‐Aparicio

Delavault

Timko

2020

Plants

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Parasitic plants rely on neighboring host plants to complete their life cycle, forming vascular connections through which they withdraw needed nutritive resources. In natural ecosystems, parasitic plants form one component of the plant community and parasitism contributes to overall community balance. In contrast, when parasitic plants become established in low biodiversified agroecosystems, their persistence causes tremendous yield losses rendering agricultural lands uncultivable. The control of parasitic weeds is challenging because there are few sources of crop resistance and it is difficult to apply controlling methods selective enough to kill the weeds without damaging the crop to which they are physically and biochemically attached. The management of parasitic weeds is also hindered by their high fecundity, dispersal efficiency, persistent seedbank, and rapid responses to changes in agricultural practices, which allow them to adapt to new hosts and manifest increased aggressiveness against new resistant cultivars. New understanding of the physiological and molecular mechanisms behind the processes of germination and haustorium development, and behind the crop resistant response, in addition to the discovery of new targets for herbicides and bioherbicides will guide researchers on the design of modern agricultural strategies for more effective, durable, and health compatible parasitic weed control.

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“…Several resistant hybrids have been developed to reduce yield losses due to the parasitic plants through conventional breeding methods of phenotypic screening and selection (Cvejić et al, 2020). The genomic tools may be further exploited to identify resistance genes and subsequent introduction in elite inbred lines, particularly to pyramid resistance and discourage evolution of new virulence types (Cvejić et al, 2020). SSR markers from LG3 showed strong association with various resistance genes i.e.…”

Section: Broomrape Resistance (Orobanche Spp)mentioning

confidence: 99%

Validated markers for sunflower (Helianthus annuusL.) breeding

Rauf

Warburton

Naeem

et al. 2020

OCL

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Sunflower is native to North America and is now grown around the world for edible oil, seed roasting, confectionary products and bird food. Genetic diversity in cultivated and wild germplasm is characterized for use with various breeding objectives. Molecular markers have been developed to facilitate sunflower breeding. This review was undertaken to discuss molecular markers, which have been validated in different genetic backgrounds for traits of economic interest in sunflower. Markers found to be linked to monogenic traits in mapping populations may be used to select plants with those traits; review of the literature identified markers available for several monogenic traits including resistance against pests and pathogens. Markers linked to Quantitative Trait Loci (QTL) for many disease resistance and economically important traits that have also been identified in specific populations and target environments are also reported here. These identified linked markers should be validated in different genetic backgrounds and environments to ensure widespread utility. Publicly available inbred lines carrying traits of interest and validated markers related to them are summarized in this review, which also highlights traits for which these resources are still lacking, possibly due to lack of funding despite the importance of this hybrid crop. Genomic sequence data is now available for sunflower, which must now be exploited to develop new SNP based markers linked to genes of interest to mine allelic diversity related to economically important traits, especially traits well studied in other organisms, such as seed oil content and resistance genes.

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Genetic and Genomic Tools in Sunflower Breeding for Broomrape Resistance

Cited by 27 publications

References 68 publications

Pea Breeding Lines Adapted to Autumn Sowings in Broomrape Prone Mediterranean Environments

Pea Breeding Lines Adapted to Autumn Sowings in Broomrape Prone Mediterranean Environments

Management of Infection by Parasitic Weeds: A Review

Validated markers for sunflower (Helianthus annuusL.) breeding

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