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.

Bibliographic Details

Main Authors:	Shtaya, M. J. Y., Marcel, T. C., Sillero, Josefina C., Niks, Rients E., Rubiales, Diego
Other Authors:	Ministerio de Asuntos Exteriores y Cooperación (España)
Format:	artículo biblioteca
Language:	English
Published:	Springer Nature 2006-10
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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