ISSN:
1432-2242
Keywords:
Key words Rice
;
Xa21
;
Disease resistance
;
Linkage map
;
Physical map
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Six molecular markers were mapped to a 7.4-cM region of rice chromosome 11 containing the Xa21 gene, which confers resistance to the pathogen Xanthomonas oryzae pv oryzae. Three markers, RG103, 248 and 818, co-segregated with Xa21 in a population of 1141 plants. Multiple copies of all marker loci were present within the region that was introgressed from Oryza longistaminata into O. sativa. The marker loci were cloned and primers were designed that defined sequence-tagged sites. Physical mapping of the three tightly linked central markers revealed that RG103, the marker that hybridizes to the Xa21 gene, resides on a separate DNA fragment from the other two markers.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s001220050344
Permalink
