|AKETCH OKENO, JAMES - Iowa State University|
Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 12/28/2012
Publication Date: 3/4/2013
Citation: Sattler, S.E., Toy, J.J., Aketch Okeno, J., Funnell-Harris, D.L., Pedersen, J.F. 2013. Registration of N614, A3N615, N616, and N617 Shattercane Genetic Stocks with cytoplasmic or nuclear male-sterility and juicy or dry midribs. Journal of Plant Registrations. 7: 245-249. DOI 10.3198/jpr201209.0033crgs
Interpretive Summary: Shattercane is genetically related to cultivated sorghum but it is a noxious weed found across most of the U.S. Shattercane pollen can fertilize cultivated sorghum, or vice versa, to produce viable seeds which can create problems in sorghum seed production fields. There is concern that specific genes that improve sorghum as a cultivated crop could be introduced into shattercane, increasing its weediness. A series of shattercane genetic stocks has been developed that can be used to measure the flow of pollen from sorghum to shattercane and to examine the weediness of shattercane-sorghum offspring. These genetic stocks have been made available to the research community.
Technical Abstract: Four shattercane [Sorghum bicolor subsp. drummondii (Nees ex Steud) de Wet & Harlan] genetic stocks, N614, A3N615, N616, N617 (Reg. No. XXX, PI 665683 to 665686), with A3 cytoplasmic male-sterility or nuclear male-sterility gene ms3 containing either juicy (dd) or dry (DD) culms were developed jointly by the USDA-ARS, the Iowa Agricultural and Home Economics Experiment Station, College of Agriculture and Life Sciences, Iowa State University, and the Agricultural Research Division, Institute of Agriculture and Natural Resources, University of Nebraska, and were released in July of 2011. The source material for these genetic stocks was isolated from an archetypical shattercane population found near Lincoln, NE. Release of these genetic stocks makes available shattercane lines with both A3 cytoplasmic male-sterility, and ms3 genetic (nuclear) male-sterility to facilitate crossing. These genetic stocks also contain juicy (dd) or dry (DD) culms, a visible genetic marker to facilitate screening progeny resulting from crosses. The genetic stocks have immediate application for basic research involving gene flow from cultivated sorghum [Sorghum bicolor (L.) Moench] to shattercane, and on the fitness of offspring resulting from such crosses.