MAIZE GENETICS COOPERATION NEWSLETTER 80 July 25, 2006 The data presented here are not to be used in publications without the consent of the authors. Division of Biological Sciences and Division of Plant Services University of Missouri Columbia, Missouri The Maize Genetics Executive Committee Sarah Hake, Chair, Class of 2008 Marty Sachs, Class of 2010 Patrick Schnable, Class of 2010 Mary Schaeffer (Polacco), Class of 2009 Anne Sylvester, Class of 2009 Jo Messing, Class of 2008 Ed Buckler, Class of 2007 Karen Cone, Class of 2007 Alfons Gierl, Class of 2007 Jeanne-Philippe Vielle-Calzada, Class of 2007 Jeff Bennetzen, Class of 2006 Ron Phillips, Class of 2006 Year 2007 Maize Genetics Conference Steering Committee Anne Sylvester, Chair Thomas P. Brutnell, Co-Chair Ed Buckler Mei Guo Erin Irish Steve Moose Jorge Nieto Sotelo Peter Rogowski Richard Schneeberger Marja Timmermans Ex Officio Karen Cone, Treasurer Marty Sachs Mary Schaeffer (Polacco) Trent Seigfried NOTE: The 49th Maize Meeting will be held at St. Charles, IL, March 22-25, 2007. I. FOREWORD .......................................................................................................................................................................................................................1 II. REPORTS FROM COOPERATORS............................................................................................................................................................................2 BEIJING, CHINA Effect of space on leaf cell plasmadesma in maize (Zea mays L.) --Zeng, M; Zeng, Z; Ji, H ........................................................................................2 BERGAMO, ITALY Characterization of gl1, a maize gene that affects cuticular wax accumulation --Sturaro, M; Salamini, F; Schnelzer, E; Motto, M...........................2 The maize ribosome-inactivating protein b-32: role in the defence against fungal pathogens --Balconi, C; Lupotto, E; Triulzi, T; Lanzanova, C; Gualdi, L; Conti, E; Motto, M.......................................................................................................................................................................3 COLUMBIA, MISSOURI A trans-acting factor required for non-disjunction of the B chromosome is located distal to the TB-4Lb breakpoint on the B chromosome --Lamb, JC; Han, F; Auger, DL; Birchler, JA .......................................................................................................................................................................4 Some more data on endosperm color and embryo form in relation to haploidy --Coe, EH; Neuffer, MG .....................................................................6 Complementations, allelisms, and placements of mutants --Coe, EH ..............................................................................................................................7 DAEGU, SOUTH KOREA Progress of maize research in North and South Korea and other countries of Asia and Africa --Kim, SK; Yoon, NM; Kim, HJ; Kim, YB; Lee, GH...................................................................................................................................................................................................................................9 DHAULAKUAN, INDIA Identification of sources of resistance against Erwinia stalk rot (Erwinia chrysanthemi pv. Zeae) among medium maturing inbred lines of maize --Kalia, V; Basandrai, AK; Thakur, SK; Jarial, RS...............................................................................................................................................10 GAINESVILLE, FLORIDA Nomenclature of sucrose synthase genes and the gene products --Chourey, PS..........................................................................................................11 The mutations sh2-i and sh2-N2340 share an identical intron splice site mutation and are most likely the same allele --Clancy, M; Hannah, LC ............................................................................................................................................................................................................................11 HONOLULU, HAWAII and DAEJEON, SOUTH KOREA Segregation of resistance to southern corn rust in set M RIL population --Ji, HC; Brewbaker, JL ................................................................................11 IRKUTSK, RUSSIA Glycolytic enzyme activity level in maize roots under low temperatures --Sokolova, MG; Akimova, GP; Nechaeva, LV............................................12 Organic acids in maize seedling root cells growing at normal lower temperatures --Akimova, GP; Sokolova, MG; Maricheva, EA..........................13 The study of foreign DNA's association with the main mitochondrial chromosome using isolated mitochondria --Nepomnyaschih, DV; Dietrich, A; Konstantinov, YM...............................................................................................................................................................................................13 Inhibitory analysis of protein phosphorylation/dephosphory-lation in mitochondria --Subota, IY; Arziev, AS; Tarasenko, VI; Konstantinov, YM...................................................................................................................................................................................................................14 IRKUTSK, RUSSIA and NOVOSIBIRSK, RUSSIA Identification of cDNA for a new chloroplast Cu/Zn superoxide dismutase in maize --Katyshev, AI; Kobzev, VF; Konstantinov, YM .......................15 KISHINEV, REPUBLIC OF MOLDOVA Using double haploid lines for quantitative trait analysis --Mihailov, ME; Chernov, AA ..................................................................................................16 LLAVALLOL, ARGENTINA Evaluation of incidence and severity of Puccinia sorghi and other diseases in the inbreds of Andino-Patagonico in Argentina --Llama, AM; Benigni, MR; Dulau, D; García Stepien, LE; Astiz Gassó, MM; Molina, MC............................................................................................................16 LLAVALLOL, ARGENTINA and BUENOS AIRES, ARGENTINA and FONTEZUELA, ARGENTINA Chemical composition of F2 kernels from high quality maize single crosses --Corcuera, VR; Salmoral, ME; Canon, L; Poggio, L ..........................17 MADISON, WISCONSIN A defect of maltase enzyme activity in the sugary enhancer (se) mutant --Pan, D .........................................................................................................18 NEW DELHI, INDIA Heritability and correlation studies in sweet corn for quality traits, field emergence and grain yield --Kumari, J; Gadag, RN; Jha, GK ....................18 Physical characteristics of different types of maize kernels --Gadag, RN; Jha, SK; Singh, A........................................................................................20 PASCANI, REPUBLIC OF MOLDOVA Bg transposon: a possibility of regulation of transcription through formation of Z-DNA and Z-DNA binding properties of its encoded proteins --Koterniak, VV.......................................................................................................................................................................................................................21 PIRACICABA, SP, BRAZIL and PONTA GROSSA, PR, BRAZIL A seed-by-seed strategy to study the paramutation at r1 locus --Mondin, M; Gardingo, JR ..........................................................................................23 PRESIDENTE PRUDENTE, BRAZIL Changes in chromosomes in highly embryogenic cultured cells and in germinating stored seeds of maize --Scandolieri, RF; Koyanagui, AP; Takahashi, FT; Fluminhan, A ........................................................................................................................................................................................24 RALEIGH, NORTH CAROLINA Effects of plant growth regulator 2,4-D, KT and BA on callus induction and plant regeneration from mature embryos of maize --Wu, M-S; Wang, X-F...............................................................................................................................................................................................................................25 SAINT PAUL, MINNESOTA How many maize genes are not in B73? --Okagaki, RJ; Schmidt, C; Stec, AO; Rines, HW; Phillips, RL ....................................................................26 i SARATOV, RUSSIA The possibility of producing tetraploid analogies from maize parthenogenetic lines --Tyrnov, VS; Kolesova, AY; Smolkina, YV..............................27 SOFIA, BULGARIA In vivo and in vitro comparison of the heterotic effect in sweet corn --Nedev, T; Krapchev, B.......................................................................................27 STUTTGART, GERMANY and FREISING-WEIHENSTEPHAN, GERMANY Variation for female fertility among haploid maize lines --Geiger, HH; Braun, MD; Gordillo, GA; Koch, S; Jesse, J; Krützfeldt, BAE.......................28 TURDA, ROMANIA Effects of the Ht1 or Ht2 gene in five maize inbred lines on quantitative resistance to Exserohilum turcicum --Has, V; Nagy, E; Has, I..................29 URBANA, ILLINOIS Additional linkage tests of non-waxy (Waxy1) reciprocal translocations involving chromosome 9 at the MGCSC --Jackson, JD; Stinard, P; Zimmerman, S........................................................................................................................................................................................................................29