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Harnessing diversity in wheat to enhance grain yield, climate resilience, disease and insect pest resistance and nutrition through conventional and modern breeding approaches

Autor: Mondal, S.
Autor: Rutkoski, J.
Autor: Velu, G.
Autor: Singh, P.K.
Autor: Crespo-Herrera, L.A.
Autor: Guzman, C.
Autor: Bhavani, S.
Autor: Caixia Lan
Autor: Xinyao He
Autor: Singh, R.P.
Año: 2016
URI: http://hdl.handle.net/10883/17798
Descripción: Wheats
Descripción: Genetic variation
Descripción: Disease resistance
Resumen: Current trends in population growth and consumption patterns continue to increase the demand for wheat, a key cereal for global food security. Further, multiple abiotic challenges due to climate change and evolving pathogen and pests pose a major concern for increasing wheat production globally. Triticeae species comprising of primary, secondary, and tertiary gene pools represent a rich source of genetic diversity in wheat. The conventional breeding strategies of direct hybridization, backcrossing and selection have successfully introgressed a number of desirable traits associated with grain yield, adaptation to abiotic stresses, disease resistance, and bio-fortification of wheat varieties. However, it is time consuming to incorporate genes conferring tolerance/resistance to multiple stresses in a single wheat variety by conventional approaches due to limitations in screening methods and the lower probabilities of combining desirable alleles. Efforts on developing innovative breeding strategies, novel tools and utilizing genetic diversity for new genes/alleles are essential to improve productivity, reduce vulnerability to diseases and pests and enhance nutritional quality. New technologies of high-throughput phenotyping, genome sequencing and genomic selection are promising approaches to maximize progeny screening and selection to accelerate the genetic gains in breeding more productive varieties. Use of cisgenic techniques to transfer beneficial alleles and their combinations within related species also offer great promise especially to achieve durable rust resistance.
Lenguaje: English
Editor: Frontiers
Copyright: CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the sutable license for that purpose.
Tipo: Article
Lugar: Switzerland
Paginas: 1-15
No de Revista: 991
Revista: Frontiers in Plant Science
Volumen de la Revista: 7
DOI: 10.3389/fpls.2016.00991


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    Wheat - breeding, phytopathology, physiology, quality, biotech

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