Application of Genetic Markers in Rosaceous Crops

Bus, Vincent G. M.; Esmenjaud, Daniel; Buck, Emily; Laurens, François

doi:10.1007/978-0-387-77491-6_27

Cited by 29 publications

(15 citation statements)

References 216 publications

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“…Bus et al 2005bBus et al , c, 2008Chagné et al 2007;Peil et al 2008). Marker-assisted selection (MAS) is currently applied mostly to manipulate pest (woolly apple aphid) and disease (scab and mildew) resistance traits that are controlled by major genes (Bus et al 2009). For further applications of these within-cross marker-trait linkages, they need to be validated in a larger genetic background.…”

Section: Integrating Molecular Markersmentioning

confidence: 99%

Development of a recurrent apple breeding programme in New Zealand: a synthesis of results, and a proposed revised breeding strategy

et al. 2009

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This paper describes an apple breeding population that has been developed in New Zealand since 1990 to broaden the genetic base for cultivar breeding. The population is now in its third generation, with recurrent selection for general combining ability being the underlying approach. During the 20 years of the programme, nearly 1,000 trees have been progeny tested. An early focus on selection within open-pollinated tests has been replaced by selection within control-pollinated tests. Genetic evaluation methods along with estimates of genetic parameters (e.g. heritability, genetic correlations, and genotype-by-environment interactions), genetic gain, and genetic diversity are summarised in this paper. The third-generation crossing programme involving nearly 350 parents is almost completed and seedlings from these crosses are in the nursery. In the revised breeding strategy, three hierarchal populations are envisioned to better integrate this broad-based population with the more commercially focused cultivar breeding programme: main breeding population (MBP), elite breeding populations (EBP) and cultivar development populations (CDP). A two-subline structure and a minimum of two crosses per parent will be implemented in the MBP. EBP will focus on developing parents for breeding goals of the CDP. Forward-selected (based on estimated breeding values) candidates from the main-and elite populations will be used as parents of the CDP. Cloning of seedlings in elite populations and also in the firststage of cultivar development, will be investigated as a tool for enhancing predictability and shortening the cycle for delivering genetic gain.

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Section: Integrating Molecular Markersmentioning

confidence: 99%

Development of a recurrent apple breeding programme in New Zealand: a synthesis of results, and a proposed revised breeding strategy

et al. 2009

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“…While marker-assisted selection (MAS) has been effective for the manipulation of large effect loci/QTLs (e.g. scab resistance, red flesh) with known associations to markers (Chagné et al 2007;Bus et al 2009), it has been at an impasse when many genes of small effect segregate (e.g. many fruit quality traits) and no substantial and reliable effects can be identified (Jannink et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Towards genomic selection in apple (Malus × domestica Borkh.) breeding programmes: Prospects, challenges and strategies

Kumar

Bink

Volz

et al. 2011

Tree Genetics & Genomes

105

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The apple genome sequence and the availability of high-throughput genotyping technologies have initiated a new era where SNP markers are abundant across the whole genome. Genomic selection (GS) is a statistical approach that utilizes all available genome-wide markers simultaneously to estimate breeding values or total genetic values. For breeding programmes, GS is a promising alternative to the traditional marker-assisted selection for manipulating complex polygenic traits often controlled by many smalleffect genes. Various factors, such as genetic architecture of selection traits, population size and structure, genetic evaluation systems, density of SNP markers and extent of linkage disequilibrium, have been shown to be the key drivers of the accuracy of GS. In this paper, we provide an overview of the status of these aspects in current applebreeding programmes. Strategies for GS for fruit quality and disease resistance are discussed, and an update on an empirical genomic selection study in a New Zealand applebreeding programme is provided, along with a foresight of expected accuracy from such selection.

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“…Furthermore, some of these markers have been successfully applied in breeding programmes (Bus et al. ). For example, four rapid amplification of polymorphic DNA (RAPD) markers were found to be associated with Vnk , a scab resistance gene (Iketani et al.…”

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confidence: 99%

“…In recent years, a number of molecular markers for different genes that determine resistance, phenotypic traits and inner quality of fruits have been developed, thereby facilitating the application of MAS. Furthermore, some of these markers have been successfully applied in breeding programmes (Bus et al 2009). For example, four rapid amplification of polymorphic DNA (RAPD) markers were found to be associated with Vnk, a scab resistance gene (Iketani et al 2001).…”

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confidence: 99%

Investigation and genetic mapping of a Glomerella leaf spot resistance locus in apple

et al. 2016

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Apple Glomerella leaf spot (GLS) is a severe fungal disease that damages apple leaves during the summer in China. Breeding new apple varieties that are resistant to the disease is considered the best way of controlling GLS. Fine mapping and tightly linked marker are critically essential for the preselection of resistant seedlings. In this study, a population of 207 F1 individuals derived from a cross between ‘Golden Delicious’ and ‘Fuji’ was used to construct a fine simple sequence repeat (SSR)‐based genetic linkage map. The position of Rgls, a locus responsible for resistance to GLS, was identified on apple linkage group (LG) 15 using SSR markers CH05g05 and CH01d08, which was adapted from a published set of 300 SSR markers that were developed using the bulked segregant analysis (BSA) method. These two SSR markers flanked the gene, and its recombination rate was 8.7% and 23.2%, respectively. A total of 276 newly developed SSR markers around the target region and designed from the genome apple assembly contig of LG15 were screened. Only nine of these were determined to be linked to the Rgls locus. Thus, a total of 11 SSR markers were in linkage with Rgls, and mapped at distances ranging from 0.5 to 33.8 cM. The closest marker to the Rgls locus was S0405127, which showed a genetic distance of approximately 0.5 cM. The first mapping of the gene Rgls was constructed, and the locations of the 11 effective primers in the ‘Golden Delicious’ apple genome sequence were anchored. This result facilitates better understanding of the molecular mechanisms underlying the trait of resistance to GLS and could be used in improving the breeding efficiency of GLS‐resistant apple varieties.

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Application of Genetic Markers in Rosaceous Crops

Cited by 29 publications

References 216 publications

Development of a recurrent apple breeding programme in New Zealand: a synthesis of results, and a proposed revised breeding strategy

Development of a recurrent apple breeding programme in New Zealand: a synthesis of results, and a proposed revised breeding strategy

Towards genomic selection in apple (Malus × domestica Borkh.) breeding programmes: Prospects, challenges and strategies

Investigation and genetic mapping of a Glomerella leaf spot resistance locus in apple

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