2011
DOI: 10.1007/s11032-011-9669-4
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Use of a transgenic early flowering approach in apple (Malus × domestica Borkh.) to introgress fire blight resistance from cultivar Evereste

Abstract: The long juvenile phase of Malus spp. has always been a major drawback for the rapid introgression of agronomically relevant traits (e.g. disease resistances) from wild apples into domestic apple cultivars (M. 9 domestica Borkh.). Several agrotechnical approaches have been investigated but none was able to reduce the juvenile phase to less than 18 months. Recently, an early flowering transgenic line named T1190 was obtained by over-expressing the BpMADS4 gene from silver birch (Betula pendula Roth.) in the app… Show more

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Cited by 42 publications
(40 citation statements)
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“…Once these assays are made widely available by commercial genotyping companies, MAB will be available even to breeders who do not have access to a DNA laboratory. When combined with the use of SNP-based genome-wide selection that has already been developed for, and applied to apple, further major efficiencies will be gained (Kumar et al 2012), especially when combined with other strategies for reducing the length and number of breeding cycles (Le Roux et al 2012;van Nocker and Gardiner 2014).…”
Section: Discussionmentioning
confidence: 99%
“…Once these assays are made widely available by commercial genotyping companies, MAB will be available even to breeders who do not have access to a DNA laboratory. When combined with the use of SNP-based genome-wide selection that has already been developed for, and applied to apple, further major efficiencies will be gained (Kumar et al 2012), especially when combined with other strategies for reducing the length and number of breeding cycles (Le Roux et al 2012;van Nocker and Gardiner 2014).…”
Section: Discussionmentioning
confidence: 99%
“…Las semillas obtenidas de las cruzas se tamizaron con marcadores moleculares y se cruzaron con germoplasma comercial, siempre monitoreados por diagnósticos moleculares de la presencia del locus responsable de dicha resistencia. De esta manera, fue posible combinar ese tipo de genes en tan solo tres años, cuando por el método tradicional se hubiesen requerido más de 10 y una población de plántulas mucho mayor (Flachowsky et al, 2011;Le Roux et al, 2012).…”
Section: Mejoramiento Biotecnológico Acelerado De áRbolesunclassified
“…El uso de potentes promotores constitutivos, como el del virus de mosaico de tabaco (35S), provoca la formación continua de flores que no son soportadas por la plántula y, como consecuencia, ocurre la caída de muchos frutos; también, se puede afectar la dominancia de crecimiento apical a favor de un mayor desarrollo de ramas y de un hábito de crecimiento tipo arbustivo (Flachowsky et al, 2011;Le Roux et al, 2012).…”
Section: Mejoramiento Biotecnológico Acelerado De áRbolesunclassified
“…Overexpression of the Zea mays leaf color (Lc) gene in transgenic apple plants resulted in increased accumulation of anthocyanins and flavan-3-ols, altered growth habit, and created a significant increase in resistance to both apple scab and fire blight (29,52). However, although silencing the flavanone-3β-hydroxylase gene of apple led to an accumulation of flavanones, it did not increase the resistance to fire blight, suggesting that redirection toward antibacterial flavan-3-ols does not happen and other flavonoids do not play a major role in resistance (27).…”
Section: Transgenic and Cisgenic Applicationsmentioning
confidence: 99%
“…After introgression of resistance into a favorable genetic background, the early flowering trait is eliminated by selection of progeny with a normal flowering trait (transgene segregates 1:1). The combination of transgenic early flowering-accelerated breeding and MAB is currently being used to introgress the fire blight resistance of "Evereste" into prebreeding material of superior fruit quality (52).…”
Section: Genomics Strategies To Facilitate Marker-assisted Breedingmentioning
confidence: 99%