ARS | Publication request: REGISTRATION OF 43 SORGHUM GENETIC STOCKS IN A2, A3, AND A4 CYTOPLASM

Submitted to: Crop Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: February 27, 1997
Publication Date: N/A

Interpretive Summary: Forty-three sorghum male-sterile genetic stocks were jointly released by the USDA-ARS; and the Agricultural Research Division, Institute of Agriculture and Natural Resources, University of Nebraska. These genetic stocks were developed by moving commonly used inbred lines into three cytoplasms not traditionally used by industry. In the possible event of the normally utilized cytoplasm succumbing to a new disease (such as occurred with southern corn leaf blight and T-cytoplasm corn), these genetic stocks significantly broaden the existing base of commonly used inbred lines in alternate cytoplasms. They have immediate application for research involving yield, quality, and stress resistance, and may be utilized to accelerate the development of new seed parent lines with increased hybrid vigor.

Technical Abstract: Forty-three sorghum [Sorghum bicolor (L.) Moench] male-sterile genetic stocks were jointly released by the USDA-ARS; the Agricultural Research Division, Institute of Agriculture and Natural Resources, University of Nebraska. These genetic stocks have A2, A3, or A4 cytoplasm and closely resemble their elite recurrent parents. These genetic stocks significantly broaden the existing base of commonly used inbred lines in alternate cytoplasms. They have immediate application for basic research involving alternate cytoplasms of sorghum, and may be utilized as females in early crosses to test for hybrid vigor with maintainer lines of other cytoplasmic-nuclear male-sterility.