Duplications Complicate Genetic Mapping of Rf4, a Restorer Gene for cms‐C Cytoplasmic Male Sterility in Corn

Autor:	Paul H. Sisco
Rok vydání:	1991
Předmět:	Genetics Centimorgan Gene mapping Chromosome 3 Gene duplication Cytoplasmic male sterility food and beverages Locus (genetics) Biology Restriction fragment length polymorphism Agronomy and Crop Science Gene health care economics and organizations
Zdroj:	Crop Science. 31:1263-1266
ISSN:	1435-0653 0011-183X
DOI:	10.2135/cropsci1991.0011183x003100050036x
Popis:	Previous studies of the genetics of fertility restoration for C-type cytoplasmic male sterility (cms-C) in corn (Zea mays L.) have produced conflicting results. The objective of this study was to localize the restorer gene(s) for cms-C using restriction fragment length polymorphism (RFLP) analysis. Rf4, a single dominant restorer gene for cms-C found in inbred A619, was localized to Chromosome 8, ≈2 centimorgans from an RFLP marker locus, NPI114A. The presence in corn of extensive nucleotide duplication complicated the analysis. Because the region of Chromosome 8 near Rf4 is duplicated on Chromosome 3, an additional restorer gene for cms-C may eventually be found on Chromosome 3. Joint contribution of the USDA-ARS and the North Carolina Agric. Res. Serv.
Databáze:	OpenAIRE
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