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ARS Home » Pacific West Area » Aberdeen, Idaho » Small Grains and Potato Germplasm Research » Research » Publications at this Location » Publication #317210
Title: Chromosome-anchored QTL conferring aluminum tolerance in hexaploid oat

Author
item SCHNEIDER, ADRIANO - Federal University Of Rio Grande Do Sul
item NAVA, ITAMAR - Federal University Of Rio Grande Do Sul
item HERVE, CASSIO - Federal University Of Rio Grande Do Sul
item Islamovic, Emir
item LIMBERGER, EMERSON - Federal University Of Rio Grande Do Sul
item JACKSON, ERIC - General Mills, Inc
item DELATORRE, CARLA - Federal University Of Rio Grande Do Sul

Submitted to: Molecular Breeding
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 4/20/2015
Publication Date: 4/29/2015
Citation: Schneider, A.B., Nava, I.C., Herve, C.B., Islamovic, E., Limberger, E., Jackson, E.W., Delatorre, C.A. 2015. Chromosome-anchored QTL conferring aluminum tolerance in hexaploid oat. Molecular Breeding. 35:121. doi: 10.1007/s11032-015-0315-4.

Interpretive Summary: Aluminum toxicity is a major agricultural problem to crop production on acid soils (soils with pH<5), which comprise ~50% of the world's total land area. Toxicity is caused by aluminum ions, which inhibit plant root growth and damage root systems, resulting in reduced crop yields. Our study investigates inheritance of aluminum toxicity resistance in oat population originated from a cross between resistant and sensitive oat variety. We identified which regions of chromosomes, also known as QTL, are involved in resistance to aluminum toxicity in oat. These results may be useful in breeding new oat cultivars with resistance to aluminum toxicity.

Technical Abstract: Abstract Aluminum (Al) toxicity is a major constraint on crop production in acid soils around the world. Hexaploid oat (Avena sativa L.) possesses signi'cant Al tolerance making it a good candidate for production in these environments. Genetic improvement for Al tolerance in oat has traditionally been achieved through conventional plant breeding and could be enhanced by marker-assisted selection. The objectives of this study were to develop a chromosome-anchored genetic map for an oat recombinant inbred population and to identify SNP markers linked to quantitative trait loci (QTL) affecting root growth.