ISSN:
1573-5060
Keywords:
Triticum aestivum
;
Secale cereale
;
powdery mildew
;
Erysiphe graminis f.sp. tritici
;
resistance
;
suppression
;
segregation distortion
;
wheat
;
rye
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract The location of wheat gene Pm8 for resistance to powdery mildew in the 1RS chromosome segment derived from cereal rye cultivar Petkus was confirmed. There was reduced transmission of the 1BL.1RS chromosome relative to its wheat homologue in four of the five crosses examined. Pm8 was not expressed in some wheat cultivars and selections which possessed the 1RS chromosome identified by the presence of relevant genes for resistance to the three rusts, due to the presence of a dominant suppressor gene(s) in the wheat genome. The frequency of suppression in 1BL.1RS wheats from Mexico was significantly higher than in a group of wheats (both local and exotic) introduced from China and was probably much higher than in European wheats.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1002923030266
