AUTHOR=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. 

TITLE=Developing a High-Throughput SNP-Based Marker System to Facilitate the Introgression of Traits From Aegilops Species Into Bread Wheat (Triticum aestivum)

JOURNAL=Frontiers in Plant Science

VOLUME=9

YEAR=2019

URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2018.01993

DOI=10.3389/fpls.2018.01993

ISSN=1664-462X

ABSTRACT=<p>The genus <italic>Aegilops</italic> contains a diverse collection of wild species exhibiting variation in geographical distribution, ecological adaptation, ploidy and genome organization. <italic>Aegilops</italic> is the most closely related genus to <italic>Triticum</italic> which includes cultivated wheat, a globally important crop that has a limited gene pool for modern breeding. <italic>Aegilops</italic> 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 <italic>Aegilops</italic>. Firstly, the data was demonstrated to be useful for screening diversity and examining relationships within and between <italic>Aegilops</italic> species. Secondly, markers able to characterize and track introgressions from <italic>Aegilops</italic> species in hexaploid wheat were identified and validated using two different approaches.</p>