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Developing a high-throughput SNP-based marker system to facilitate the introgression of traits from Aegilops species into bread wheat (Triticum aestivum)

Przewieslik-Allen, Alexandra M.; Burridge, Amanda J.; Wilkinson, Paul A.; Winfield, Mark O.; Shaw, Daniel S.; McAusland, Lorna; King, Julie; King, Ian P.; Edwards, Keith J.; Barker, Gary L.A.

Authors

Alexandra M. Przewieslik-Allen

Amanda J. Burridge

Paul A. Wilkinson

Mark O. Winfield

Daniel S. Shaw

Lorna McAusland

Julie King

Ian P. King

Keith J. Edwards

Gary L.A. Barker



Abstract

The genus Aegilops contains a diverse collection of wild species exhibiting variation in geographical distribution, ecological adaptation, ploidy and genome organization. Aegilops is the most closely related genus to Triticum which includes cultivated wheat, a globally important crop that has a limited gene pool for modern breeding. Aegilops species are a potential future resource for wheat breeding for traits, such as adaptation to different ecological conditions and pest and disease resistance. This study describes the development and application of the first high-throughput genotyping platform specifically designed for screening wheat relative species. The platform was used to screen multiple accessions representing all species in the genus Aegilops. Firstly, the data was demonstrated to be useful for screening diversity and examining relationships within and between Aegilops species. Secondly, markers able to characterize and track introgressions from Aegilops species in hexaploid wheat were identified and validated using two different approaches.

Journal Article Type Article
Publication Date Jan 24, 2019
Journal Frontiers in Plant Science
Electronic ISSN 1664-462X
Publisher Frontiers Media
Peer Reviewed Peer Reviewed
Volume 9
Article Number 1993
APA6 Citation Przewieslik-Allen, A. M., Burridge, A. J., Wilkinson, P. A., Winfield, M. O., Shaw, D. S., McAusland, L., …Barker, G. L. (2019). Developing a high-throughput SNP-based marker system to facilitate the introgression of traits from Aegilops species into bread wheat (Triticum aestivum). Frontiers in Plant Science, 9, doi:10.3389/fpls.2018.01993
DOI https://doi.org/10.3389/fpls.2018.01993
Keywords Aegilops; Wheat, genotyping array; Single nucleotide polymorphism (SNP); Introgression; Wheat relative
Publisher URL https://www.frontiersin.org/articles/10.3389/fpls.2018.01993/full
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