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United States Department of Agriculture

Agricultural Research Service

Research Project: IDENTIFICATION OF PLANT GENETIC MECHANISMS THAT INFLUENCE INSECT-POLLINATOR PREFERENCE

Location: Corn Insects and Crop Genetics Research

Title: Male sterility and hybrid seed production

Authors
item Palmer, Reid
item Gai, J -
item Dalvi, V -
item Suso, Maria -

Submitted to: Book Chapter
Publication Type: Book / Chapter
Publication Acceptance Date: March 28, 2011
Publication Date: June 21, 2011
Citation: Palmer, R.G., Gai, J., Dalvi, V.A., Suso, M.J. 2011. Male sterility and hybrid seed production. In: Pratap A., Kumar J., editors. Biology and Breeding of Food Legumer. Wallingford, United Kingdom:CAB International. p. 193-2007.

Technical Abstract: Sexual reproduction in angiosperms is a complex process that includes a portion of the vegetative generation and all of the sexual generation. Coordination of both female and male reproduction ontogenies must occur. An abnormality anywhere in this process may lead to sterility. Genetic (nuclear) and cytoplasmically inherited mechanisms have been used to produce hybrids. This chapter describes sterility systems and, in a few examples, the utilization of sterility systems to produce hybrid seed commercially. The benefit of hybrids is an increase in vigor, termed heterosis. The preferred situation is high-parent heterosis, which is the superior performance of the hybrid plant over the better parent. For commercialization of hybrids, there needs to be an economical level of seed increase for the seedsman, and for the growers, that ultimately benefits the consumer. This may be lower costs and/or better quality.

Last Modified: 9/29/2014
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