Open AccessA Novel Rust Resistance Gene in Maize Showing Overdominance
Author(s) -
Donna E. Delaney,
Craig A. Webb,
Scot H. Hulbert
Publication year - 1998
Publication title -
molecular plant-microbe interactions
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.565
H-Index - 153
eISSN - 1943-7706
pISSN - 0894-0282
DOI - 10.1094/mpmi.1998.11.3.242
Subject(s) - overdominance , locus (genetics) , genetics , biology , allele , restriction fragment length polymorphism , heterozygote advantage , gene , genotype
The Rp8 rust resistance locus of maize is unique in that only Rp8-A/Rp8-B heterozygotes provide resistance and homozygotes are susceptible. A third allele, Rp8-C, provides no resistance in homozygotes or heterozygous combinations. Rp8 maps to the long arm of chromosome 6, near the restriction fragment length polymorphism marker umc21.