Characterization of Fusarium Head Blight Resistance and Deoxynivalenol Accumulation in Hulled and Hulless Winter Barley

被引：12

作者：

Berger, Gregory ^{[1
]}

Green, Andrew ^{[2
]}

Khatibi, Piyum ^{[3
]}

Brooks, Wynse ^{[4
]}

Rosso, Luciana ^{[4
]}

Liu, Shuyu ^{[5
]}

Chao, Shiaoman ^{[6
]}

Griffey, Carl ^{[4
]}

Schmale, David, III ^{[3
]}

机构：

[1] Univ Arkansas, Rice Res & Extens Ctr, Dept Crop Soil & Environm Sci, D-72160 Stuttgart, Germany

[2] Kansas State Univ, Dept Agron, Manhattan, KS 66506 USA

[3] Virginia Tech, Dept Plant Pathol Physiol & Weed Sci, Blacksburg, VA 24061 USA

[4] Virginia Tech, Dept Crop & Soil Environm Sci, Blacksburg, VA 24061 USA

[5] Texas A&M, Texas AgriLife Res, Amarillo, TX 79106 USA

[6] USDA ARS, Biosci Res Lab, Fargo, ND 58102 USA

来源：

PLANT DISEASE | 2014年 / 98卷 / 05期

关键词：

QUANTITATIVE TRAIT LOCI; KERNEL DISCOLORATION; QTL ANALYSIS; REGISTRATION; WHEAT; GRAIN; IDENTIFICATION; POPULATION; VALIDATION; CROSS;

D O I：

10.1094/PDIS-05-13-0479-RE

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Fusarium head blight (FHB), caused by Fusariuin graminearum, is one of the most serious diseases impacting the U.S. barley (Hordeum vulgare) industry. The mycotoxin deoxynivalenol (DON), produced by the pathogen, renders grain unmarketable if concentrations exceed threshold values set for end-use markets. Development of cultivars with improved FHB resistance and reduced DON accumulation is necessary to ensure minimal losses. Elite hulled and hulless genotypes developed by the Virginia Tech winter barley breeding program were screened in inoculated, mist-irrigated FHB nurseries over 2 years at two locations in Virginia to validate resistance levels over years and locations. Results demonstrated that barley genotypes varied significantly for resistance to FHB and DON accumulation. The hulled 'Nomini', hulless 'Eve', and hulless line VA06H-48 were consistently resistant across locations to both FHB and DON accumulation. Screening the genotypes with molecular markers on chromosomes 2H and 6H for FHB and DON revealed quantitative trait loci regions which may confer resistance in the Virginia Tech germplasm. Ongoing and future work with mapping populations seeks to identify novel regions for resistance to FHB and DON accumulation unique to the Virginia Tech breeding program.

引用

页码：599 / 606

页数：8

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