Registration of N614, A 3 N615, N616, and N617 Shattercane Genetic Stocks with Cytoplasmic or Nuclear Male Sterility and Juicy or Dry Midribs

Four shattercane [ Sorghum bicolor subsp. drummondii (Nees ex Steud.) de Wet ex Davidse] genetic stocks—N614 (Reg. No. GS‐652, PI 665684), A 3 N615 (Reg. No. GS‐651, PI 665683), N616 (Reg. No. GS‐653, PI 665685), and N617 (Reg. No. GS‐654, PI 665686)—with A 3 cytoplasmic male sterility or the nuclear male sterility gene ms 3 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. The stocks were released in July 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 A 3 cytoplasmic male sterility, and ms 3 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.