Crop Science Grow Your Career with CSSA
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Published online 21 November 2006
Published in Crop Sci 46:2630-2635 (2006)
© 2006 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
This Article
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Hoffman, D. L.
Right arrow Articles by Obert, D. E.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Hoffman, D. L.
Right arrow Articles by Obert, D. E.
Agricola
Right arrow Articles by Hoffman, D. L.
Right arrow Articles by Obert, D. E.
Related Collections
Right arrow Cell Biology & Molecular Genetics
Right arrow Crop Genetics
Right arrow Oat
Right arrow Plant Disease

CROP BREEDING & GENETICS

Characterization and Mapping of a Crown Rust Resistance Gene Complex (Pc58) in TAM O-301

D. L. Hoffman, (deceased)a, J. Chongb, E. W. Jacksona,* and D. E. Oberta

a USDA-ARS, 1691 S. 2700 W., Aberdeen, ID 83210
b Cereal Research Centre, Agric. & Agri-Food Canada, 195 Dafoe Rd., Winnipeg, MB, Canada R3T 2M9

* Corresponding author (ejackson{at}uidaho.edu)

Crown rust of cultivated oat (Avena sativa L.) caused by Puccinia coronata Corda f. sp. avenae Eriks, causes yield loss, reduction in test weight, and increased lodging. Genetic resistance is the most desirable method to control the disease. ‘TAM O-301’, a cultivar released by the Texas A&M oat-breeding program in 1973, has crown rust resistance, subsequently named Pc58. The main objectives of this study were to characterize Pc58 in TAM O-301 using an F6:7 recombinant inbred (RI) population of the ‘Ogle’ x TAM O-301 cross and to map the Pc58 resistance. Six crown rust isolates, avirulent on TAM O-301 and virulent on Ogle, were used to test the parents and RI population. Genetic analyses of the segregation data to each of the six isolates indicated that the resistance was conditioned by three genes within a 41.0-cM region. The resistance genes were mapped to linkage groups OT32 and OT33 in the published molecular linkage map of Ogle x TAM O-301. This research has provided new information on the Pc58 resistance gene complex that should facilitate new marker and germplasm development.

Abbreviations: IT, Infection type • OT, Ogle x TAM O-301 • Pc, Puccinia coronata • Pg, Puccinia graminis • PCR, polymerase chain reaction • PI, plant introduction • RFLP, restriction fragment length polymorphism • SCAR, sequence characterized amplified region • STS, sequence tagged site






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Agronomy Journal Vadose Zone Journal
Journal of Plant Registrations Soil Science Society of America Journal
Journal of Natural Resources
and Life Sciences Education		 Journal of
Environmental Quality
Copyright © 2006 by the Crop Science Society of America.