Crop Science Journal of Natural Resources and Life Sciences Education
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Published in Crop Sci 14:401-403 (1974)
© 1974 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Intergeneric Hybrid Between Pearl Millet and Buffelgrass1

J. C. Read and E. C. Bashaw2

Extensive efforts to cross a male-sterile pearl millet (Pennisetum americanum (L.) K. Schum.) and apomictic buffelgrass (Cenchrus ciliaris L.) produced one F1 hybrid plant. Investigations of megasporogenesis and embryo sac development revealed that the apomictic mechanism (apospory) of the buffelgrass parent was transferred to the F1. In spite of the apparent potential for apomictic reproduction, the F1 plant was completely sterile. Cytogenetic studies indicate that the relationship of the parental species is probably no closer than the tertiary gene pool. Thus, any transfer of characters would be difficult and efforts should be limited to those traits that do not exist in the primary and secondary gene pools.

Key Words: Cenchrus • Pennisetum • Apomixis • Species relationship

1 Contribution from the Agriculture Research Service, USDA, and the Department of Soil and Crop Sciences, Texas Agricultural Experiment Station, College Station, Texas. Based partly on a dissertation submitted to the Graduate College, Texas A&M University, by the senior author in partial fulfillment of the requirements for the Ph.D. degree, 1971. Published with the approval of the Texas Agricultural Experiment Station as Technical Paper No. 10798.

2 Former Graduate Assistant, Department of Soil and Crop Sciences, Texas A&M University (now Research Geneticist, USDA, ARS, Western Region, Salinas, CA 93901), and Research Geneticist, USDA, ARS, Soil and Crop Sciences Department, College Station, TX 77843.

Received for publication October 20, 1973.


This article has been cited by other articles:


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S. Goel, Z. Chen, Y. Akiyama, J. A. Conner, M. Basu, G. Gualtieri, W. W. Hanna, and P. Ozias-Akins
Comparative Physical Mapping of the Apospory-Specific Genomic Region in Two Apomictic Grasses: Pennisetum squamulatum and Cenchrus ciliaris
Genetics, May 1, 2006; 173(1): 389 - 400.
[Abstract] [Full Text] [PDF]


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Copyright © 1974 by the Crop Science Society of America.