Wallace, S.; Chhabra, B.; Dong, Y.; Ma, X.; Coleman, G.; Tiwari, V.; Rawat, N. Exploring Fusarium Head Blight Resistance In a Winter Triticale Germplasm Collection. Preprints2021, 2021040300. https://doi.org/10.20944/preprints202104.0300.v1
APA Style
Wallace, S., Chhabra, B., Dong, Y., Ma, X., Coleman, G., Tiwari, V., & Rawat, N. (2021). Exploring Fusarium Head Blight Resistance In a Winter Triticale Germplasm Collection. Preprints. https://doi.org/10.20944/preprints202104.0300.v1
Chicago/Turabian Style
Wallace, S., Vijay Tiwari and Nidhi Rawat. 2021 "Exploring Fusarium Head Blight Resistance In a Winter Triticale Germplasm Collection" Preprints. https://doi.org/10.20944/preprints202104.0300.v1
Abstract
Fusarium Head Blight (FHB) is a destructive disease affecting the grain yield and quality of wheat, barley, rye and triticale. Developing varieties with genetic resistance is integral to successfully managing FHB. However, significant knowledge gap exists in the genetic diversity present in triticale for FHB resistance. This information is critical for breeding new varieties of triticale as its production continues to increase. In the present study, a set of 298 winter triticale accessions from a worldwide collection were screened for their type-2 FHB resistance in an artificially inoculated misted nursery with high levels of inoculum density. Most of the triticale accessions were susceptible to FHB, and only 8% of accessions showed resistance in the field nursery screening. The resistant accessions identified in the nursery screening were selected and further screened for three years in greenhouse conditions. Seven accessions were found to show robust FHB resistance over the three years of greenhouse testing. Thirteen accessions showed significantly lower levels of Deoxynivalenol accumulation when compared to the susceptible triticale control. The accessions identified in the study will be useful in triticale and wheat breeding programs for enhancing FHB resistance and reducing DON accumulation.
Keywords
Fusarium head blight; deoxynivalenol; triticale; genetic resistance; disease evaluation
Subject
Biology and Life Sciences, Anatomy and Physiology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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