NUCLEAR FERTILITY RESTORER GENES MAP TO THE SAME LINKAGE GROUP IN CYTOPLASMIC MALE-STERILE BEAN

Citation
Mh. Jia et al., NUCLEAR FERTILITY RESTORER GENES MAP TO THE SAME LINKAGE GROUP IN CYTOPLASMIC MALE-STERILE BEAN, Theoretical and Applied Genetics, 95(1-2), 1997, pp. 205-210
Citations number
19
Categorie Soggetti
Genetics & Heredity","Plant Sciences
ISSN journal
00405752
Volume
95
Issue
1-2
Year of publication
1997
Pages
205 - 210
Database
ISI
SICI code
0040-5752(1997)95:1-2<205:NFRGMT>2.0.ZU;2-6
Abstract
Fertility restoration in cytoplasmic male-sterile plants (CMS) by nucl ear restorer genes is one of the few useful systems for studying nucle ar-mitochondrial interactions in higher eukaryotes. In CMS bean there exist multiple independently identified nuclear genes that restore fer tility. Two restorer genes (Fr and Fr-2) have been characterized previ ously. We have genetically characterized two additional restorer genes ; both restorers are single genes that behave similarly to Fr-2. We co mpared the linkage relationship of all four independently identified r estorer genes to understand the relationship among these loci further. All four genes map to the same linkage group. It was not possible to distinguish between the two newly identified restorer genes and Fr-2. We suggest that they may be allelic.