Marker assisted selection in crop plants

By E. Francia, G. Tacconi, C. Crosatti, D. Barabaschi, D. Bulgarelli, E. Dall’Aglio, G. Valè. Plant Cell Tissue and Organ Culture, 2005

274 citations recorded by the source corpus.

Genetic mapping of major genes and quantitative traits loci (QTLs) for many important agricultural traits is increasing the integration of biotechnology with the conventional breeding process. Exploitation of the information derived from the map position of traits with agronomical importance and of the linked molecular markers, can be achieved through marker assisted selection (MAS) of the traits during the breeding process. However, empirical applications of this procedure have shown that the success of MAS depends upon several factors, including the genetic base of the trait, the degree of the association between the molecular marker and the target gene, the number of individuals that can be analyzed and the genetic background in which the target gene has to be transferred. MAS for simply inherited traits is gaining increasing importance in breeding programs, allowing an acceleration of the breeding process. Traits related to disease resistance to pathogens and to the quality of some crop products are offering some important examples of a possible routinary application of MAS. For more complex traits, like yield and abiotic stress tolerance, a number of constraints have determined severe limitations on an efficient utilization of MAS in plant breeding, even if there are a few successful applications in improving quantitative traits. Recent advances in genotyping technologies together with comparative and functional genomic approaches are providing useful tools for the selection of genotypes with superior agronomical performancies.

Subfields: Genetics, Plant Science

View Paper: https://www.semanticscholar.org/paper/691334193bed814c0860cbc5f2a5aeb40393a156

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In Genetics

1. Yunbi Xu
2. K. Semagn
3. D. Mackill
4. D. Virk
5. M. Golabadi
6. B. Collard
7. A. Arzani
8. J. Crouch

In Plant Science

1. Yunbi Xu
2. K. Semagn
3. D. Mackill
4. B. Collard
5. J. Witcombe
6. G. Jiang
7. D. Virk
8. M. Golabadi

Citations in the corpus

• Field evaluation of upland rice lines selected for QTLs controlling root traits (2007, background): “, 1997) a number of constraints have determined severe limitations on an efficient utilisation of MAS in plant breeding programmes (Francia et al., 2005).”
• Inheritance of Fusarium wilt resistance introgressed from Solanum aethiopicum Gilo and Aculeatum groups into cultivated eggplant (S. melongena) and development of associated PCR-based markers (2008, background): “Suppression of recombination in genomic segments introgressed from related species was observed in several studies (Francia et al. 2005) including the introduction of a late blight resistance gene derived from Solanum bulbocastanum into cultivated potato (Naess et al. 2000).”
• Drought tolerance improvement in crop plants: An integrated view from breeding to genomics (2008, background): “These intrinsic difficulties together with the polygenic nature of drought tolerance and the interaction with the environment, makes MAS for drought tolerant QTLs extremely difficult (Francia et al., 2005) due to the number of genes involved and the interactions among them (epistasis).”
• Marker-assisted selection: an approach for precision plant breeding in the twenty-first century (2008, background): “Reports have been numerous of DNA markers linked to genes or QTLs (Mohan et al. 1997; Francia et al. 2005).”
• Marker-Assisted Selection in Plant Breeding: From Publications to Practice (2008, background): “, 2003; Peña, 2004; Holland, 2004; Salvi and Tuberosa, 2005); and (iii) manipulating (diff erentiating, selecting, pyramiding, and integrating) genetic variation in breeding populations (Stuber, 1992; Xu, 1997; Collard et al., 2005; Francia et al., 2005; Varshney et al., 2005a; Wang et al., 2007).”
• Identification of microsatellite markers linked with yield components under drought stress at terminal growth stages in durum wheat (2010, background): “However, the complexity of inheritance of grain yield and the polygenic nature of drought tolerance mechanisms makes it extremely difficult to apply a common MAS strategy under drought and normal field conditions (Francia et al. 2005; Cattivelli et al. 2008).”
• Progress and prospects of marker assisted backcrossing as a tool in crop breeding programs (2006, background): “, 2006a for review) and genetic maps, MAB has become possible both for traits governed by single gene and quantitative trait loci (QTLs) (Francia et al., 2005).”
• Root traits contributing to plant productivity under drought (2013, background): “Irrigation reached to approximately 30 cm soil depth in the crops illustrated but roots of these crops were found below 1 m. Deep roots for water acquisition deep in the soil profile may be especially important for smaller statured plants, such as wheat, rice, and common bean (Phaseolus vulgaris), b”