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Published in Crop Sci 24:992-994 (1984)
© 1984 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Linkage Analysis of the Male-Fertility Restorer Gene, Rf, in Cotton1

R. J. Kohel, J. E. Quisenberry and R. E. Dilbeck2

The gene Rfpartially restores male fertility to upland cottons, Gossypium hirsutum L., that have the cytoplasm of the wild diploid species G. harknessii Brandg. The Rf gene is linked with the deleterious Cracked root gene, Rc. The chromosomal location and additional linkage associations of Rf have not been identified. Knowledge of such associations could be useful in the transference and manipulation of the Rf/gene. In this study we tested 13 genetic marker loci distributed on at least nine chromosomes, for possible linkage with Rf. No such associations were detected.

Key Words: Gossypium hirsutums • G. barbadense • G. harknessii • Cytoplasmic male sterility • Genetic markers

1 Contribution from USDA-ARS, College Station, and Lubbock, TX, in cooperation with the Texas Agric. Exp. Stn.

2 Research geneticists and agronomist, USDA-ARS, College Station, TX 77841 and Lubbock, TX 79401.

Received for publication February 13, 1984.




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