Marker-assisted wheat breeding: present status and future possibilities

Gupta, P. K. ; Langridge, Peter ; Mir, R. R. (2010) Marker-assisted wheat breeding: present status and future possibilities Molecular Breeding, 26 (2). pp. 145-161. ISSN 1380-3743

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Wheat production and productivity in the past witnessed a remarkable growth. However, this growth rate could not be sustained during the last decade, causing concern among world wheat community. Marker-assisted selection (MAS), which is being practiced for improvement of a variety of traits in wheat around the world, may at least partly help in providing the desired solution. Marker-trait associations are now known for a number of simple, but difficult-to-score traits, so that MAS has been found useful for improvement of several of these important economic traits. Breeding strategies including marker-assisted backcrossing, forward breeding, MAS involving doubled haploid technology and F2 enrichment have been successfully utilized for this purpose. However, for improvement of complex polygenic traits, newer technologies based on high throughput genotyping associated with new marker systems (e.g., DArT and SNP), and new selection strategies such as AB-QTL, mapping-as-you-go, marker-assisted recurrent selection and genome-wide selection will have to be tried in future. The progress made in all these aspects of marker-assisted wheat breeding, and the limitations and future prospects of this emerging technology have been reviewed in this article.

Item Type:Article
Source:Copyright of this article belongs to Springer.
Keywords:Bread Wheat; Marker-trait Association; Marker-assisted Selection (MAS); Molecular Breeding
ID Code:74906
Deposited On:19 Dec 2011 05:53
Last Modified:19 Dec 2011 05:53

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