Anther and tissue culture-induced grain chalkiness and associated variants in rice |
| |
Authors: | Gideon W Schaeffer F T Sharpe Jr H L Carnahan C W Johnson |
| |
Institution: | (1) U.S. Department of Agriculture, Agricultural Research Service, Plant Physiology Institute, Tissue Culture and Molecular Biology Laboratory, Room 116, Building 011-A BARC-West, 20705 Beltsville, MD, USA;(2) Rice Experiment Station, California Co-operative Rice Research Foundation, Inc., P.O. Box 306, 95917 Biggs, CA, USA |
| |
Abstract: | Rice, Oryza sativa, plants regenerated from anther culture with and without in vitro selection pressure were evaluated for chalky seed. Progeny evaluated included 21 spontaneously doubled haploids selfed 4 times, progeny from plants regenerated from S-aminoethylcysteine resistant callus selfed 4 times and backcrosses of both types to the parental type. All lines with in vitro histories had higher seed chalkiness than the controls both in the intensity of chalkiness and in the number of seeds expressing the character. The full range of intensity and amount of chalkiness was expressed in the progeny. The average intensity of anther/tissue culture-derived progeny was 4–5, based on a scale of 1 (translucent) to 10 (fully opaque), and the average amount of chalkiness within plants sampled was 50–75 percent. The chalky characteristic is transmitted from parent to offspring into a range of identifiable F2 segregants.
Disclaimer statement Mention of a trademark or proprietary product does not constitute a guarantee or warranty of the product by the USDA, and does not imply its approval to the exclusion of other products that may also be suitable. |
| |
Keywords: | rice protein tissue culture in vitro opaque endosperm chalkiness |
本文献已被 SpringerLink 等数据库收录! |
|