Identification of QTLs for powdery mildew and scald resistance in barley
A population of 103 recombinant inbred lines (RILs, F9-derived lines) developed from the two-row spring barley cross L94 × ‘Vada’ was evaluated under field conditions for resistance against powdery mildew (Blumeria graminis f.sp. hordei) and scald (Rhynchosporium secalis). Apart from the major resistance gene mlo on chromosome 4 (4H), three QTLs (Rbgq1, Rbgq2 and Rbgq3) for resistance against powdery mildew were detected on chromosomes 2 (2H), 3 (3H), and 7 (5H), respectively. Rbgq1 and Rbgq2 have not been reported before, and did not map to a chromosome region where a major gene for powdery mildew had been reported. Four QTLs (Rrsq1, Rrsq2, Rrsq3 and Rrsq4) for resistance against scald were detected on chromosomes 3 (3H), 4 (4H) and 6 (6H). All four mapped to places where QTLs for scald resistance had been reported before in different populations.
Main Authors: | , , , , |
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Format: | artículo biblioteca |
Language: | English |
Published: |
Springer Nature
2006-10
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Subjects: | Barley, Blumeria graminis f.sp. hordei, Partial resistance, QTL mapping, Rhynchosporium secalis, |
Online Access: | http://hdl.handle.net/10261/160363 http://dx.doi.org/10.13039/501100003767 http://dx.doi.org/10.13039/501100007273 |
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