I. FOREWORD 1
II. REPORTS FROM COOPERATORS 2
ALBANY, CALIFORNIA
The Kn1-O mutation is a 19kb tandem duplication --Bruce Veit, Erik Vollbrecht and Sarah Hake 2
Interaction between mutations that influence inflorescence development --Bruce Veit and Sarah Hake 2
The insertion of a Mu element results in a new knotted mutation --Richard M. Walko and Sarah Hake 2
Continuous transposition of the maize Ac element in four generations of transgenic tobacco
--Reinhard Hehl and Barbara Baker 3
Delivery of A1 and Bz1 genes to intact aleurone tissue --Ted Klein, Brad Roth and Michael Fromm 3
--David M. Bashe and Joseph P. Mascarenhas 4
and ARS sequences. --James H. Zhou and Alan G. Atherly 5
The putative Mutator-induced deletion of the A1 and Sh2 loci on the long arm of chromosome 3, a1-sh2-Mu, is
inviable in both the homozygous and hypoploid conditions --Philip S. Stinard and Donald S. Robertson 7
Allele tests of new putative Mutator-induced recessive kernel mutants with ae-like phenotype
--Philip S. Stinard 8
Two-point linkage data for brn1 to cr1 on 3S --Philip S. Stinard 9
A putative Mutator-induced du1 mutant --Philip S. Stinard 9
Inbred line A188 is homozygous for y1 and Wc --Brent Buckner and Philip S. Stinard 9
The source of the Mutator system and the first Mu-induced mutants --Donald S. Robertson 9
A model for heterosis --Donald S. Robertson 10
Evidence for Mutator activity in the spore-zygote interval --Donald S. Robertson and Philip Stinard 12
Results of tests of an alternative explanation for 1:1 ratios involving Mutator-induced mutable a1 mutants
--Donald S. Robertson 14
a-m877527 - Cy controlled --Peter A. Peterson 14
Systems relationships - Mrh and Mut --Peter A. Peterson 14
bz-877803 - a correction, not En but likely Cy --Peter A. Peterson 14
c2-m857213 - System relation --Peter A. Peterson 14
P-VV alleles --Peter A. Peterson 16
a2-m668144 - a2-rcy responds to Cy --Peter A. Peterson 16
C-I-m836519 - Insert induced loss of a male transmitted color inhibition capacity --Peter A. Peterson 16
C-I-m836976 - an autonomously mutable En allele --Peter A. Peterson 16
Df C-I Sh-846571 --Peter A. Peterson 16
a-m(Au)871618W1, a-m(Au)871618W2 and a-m(Au)flow --Peter A. Peterson 17
wx-m867674 - an En insert at the Wx locus --Peter A. Peterson 17
C-I836978 - a weak C-I allele --Peter A. Peterson 17
c-m(r)860904 - a mutant controlled by En-I system, the origin of a receptor allele from c-m655437
--Ch. Jayaram, A. R. Reddy and Peter A. Peterson 17
Use of commercial ink marker pen in genetic analysis --Yong-Bao Pan and Michael G. Muszynski 18
Uq activation: recovered germinal events --Yong-Bao Pan and Peter A. Peterson 18
The Uq at mn-866248U is not a standard Uq element --Yong-Bao Pan and Peter A. Peterson 18
Dee*-m857345 and Dee*-m857513: two mutable defective endosperm mutants
--Yong Bao Pan and Peter A. Peterson 18
Uq-10aa-SS: a second 5-aza-2-deoxycytidine induced Uq element --Yong-Bao Pan and Peter A. Peterson 19
Pollen transformation: improving seed setting
--Yong-Bao Pan, Hua Zhou, Peter A. Peterson and Alan G. Atherly 20
The "a-m(r) effect" on wx-844 mutability --Kim Hagemann and Peter A. Peterson 20
The transposable element Uq in BSSS(R) and BS13(S) corn breeding populations
--Lisa Lorenzen and Peter A. Peterson 21
Crossingover frequencies between several translocations and four En-containing alleles
--Ruying Chang and Peter A. Peterson 21
Chemical methods for direct gene transfer to maize protoplasts: I. Efficient transient expression after treatment
with the polycation Polybrene --N. M. Antonelli and J. Stadler 21
Phagocytosis of latex beads by protoplasts --J. Stadler and Huang H. C. Lin 22
Chemical methods for direct gene transfer to protoplasts. II: Recovery of stable transformants after direct gene
transfer using polyethylene glycol (PEG) --N. M. Antonelli and J. Stadler 23
Possible reactivation of Mu-loss line through tissue culture and regeneration
--M. James, P. Stinard, D.S. Robertson and J. Stadler 24
--Daniel Ortiz, Robert Gregerson and Judith Strommer 25
Aberrant processing of Mu1-induced mutant alleles --Daniel Ortiz, Robert Gregerson and Judith Strommer 26
synaptonemal complex core and lateral elements --M. P. Maguire 26
--Dai Jingrui, Chen Liufang and Han Yashan 28
--H. Hartings, N. Lazzaroni, A. Spada, R. Thompson, F. Salamani, M. Motto, J. Palau and N. Difonzo 29
Molecular properties of the wx-m32 allele: a Bg-induced unstable mutation
--M. Maddaloni, G. Ponziani, N. Di Fonzo, F. Salamini, R. Thompson and M. Motto 30
Characterization of in vitro salt-tolerant embryogenic cultures
--E. Lupotto, M. C. Lusardi, D. Bartels and M. Mongodi 31
Isolation of L-glufosinate-tolerant embryogenic lines in various genotypes
--E. Lupotto, M. C. Lusardi, E. Nielsen and G. Forlani 31
Isolation of Bg-induced unstable mutations at the Wx locus
--F. Salamini, L. Asperti, C. Balconi, N. Di Fonzo, R. Thompson and M. Motto 33
--Julia Bailey-Serres and Michael Freeling 33
A testable site-specific recombination model for Mu3 excision
--Barbara Kloeckener-Gruissem and Michael Freeling 34
Analysis of a partial Adh1-3F1124 germinal revertant
--Brandon DeFrancisci, Barbara Kloeckener-Gruissem and Michael Freeling 34
Organ and tissue specific expression of 6-phosphogluconate PGD2 . PGD2 dehydrogenase (6-PGD)
--J. Thom, J. Bailey-Serres and M. Freeling 35
Detailed analysis of the aerobic and anaerobic tissue distribution of ADH1 activity in the primary root
--Julie Vogel, John Fowler and Michael Freeling 35
Preliminary analysis of the pollen cell lineage --R. Kelly Dawe and Michael Freeling 36
An explanation of the sporadic behavior of morphological mutants --Michael Freeling and Nicholas Harberd 36
Use of the scanning electron microscope to ascribe leaf regional identities even when normal anatomy is disrupted
--Phil Becraft and Michael Freeling 37
A Mu-suppressible hcf mutant, and non-reciprocal transmission of Mu activity
--Rob Martienssen, Alice Barkan, William C. Taylor and Michael Freeling 37
Novel derivatives of Adh1-3F1124 --Rodney G. Winkler and Michael Freeling 38
An anaerobic protein (ANP) that may not be a glycolytic enzyme --Wolfgang Kammerer and Michael Freeling 38
Mu3 may cause chromosomal rearrangements at a distance from the insertion site
--Yvonne Thorstenson and Michael Freeling 39
--Mahmoud M. Rifaat and Asim Esen 39
Basis of b-glucosidase multiplicity --Mahmoud M. Rifaat and Asim Esen 40
Problems in maize-MDMV genetics --C. W. Roane and S. A. Tolin 40
Stripes and the fate map concept in the maize-MDMV relationship --C. W. Roane and S. A. Tolin 41
Tillering and resistance to MDMV --C. W. Roane and S. A. Tolin 42
Further studies on K10-I and K10-II --M. M. Rhoades and Ellen Dempsey 42
Breeding behaviour of shrunken kernels --Shehalata B. Allagikar, S. E. Pawar and N. K. Notani 43
Sucrose synthetase activity in developing kernels
--Shehalata B. Allagikar, S. E. Pawar, R. K. Mitra and N. K. Notani 43
--Victor Raboy and Oliver E. Nelson Jr. 44
--Ping-chin Cheng and Hyo-gun Kim 45
--Luiz Eugenio Coelho de Miranda, Luiz Torres de Miranda and Sylmar Denucci 47
Allometric genetics: in a factorial with results expressed in logarithms the linear effects are the coefficients in the
allometry expression --Luiz Torres de Miranda and Luiz Eugenio Coelho de Miranda 48
Allometric genetics: a summing up --Luiz Torres de Miranda and Luiz Eugenio Coelho de Miranda 48
Allometric genetics and linkages of teosinte characters in 4S
--Luiz Eugenio Coelho de Miranda and Luiz Torres de Miranda 49
Relationship between zein and coixin
--Laura M. M. Ottoboni, Adilson Leite, Maria Luiza N. Targon, Marcio J. DaSilva and Paulo Arruda 49
Lysine-ketoglutarate reductase in normal and opaque-2 endosperm
--Marcia R. Brochetto-Braga, Adilson Leite and Paulo Arruda 50
More studies on anther culture --Y. C. Ting and A. H. Mu 51
Presence of pBR322-homologous transcripts in maize --D. Gupta, M. Tanzer and A. G. Abbott 52
R-locus imprinting is tissue-specific and not positional --Joe Colasanti, Amar J. S. Klar and V. Sundaresan 53
Molecular analysis of the P locus --Christa Lechelt and Thomas Peterson 54
Short-range transposition of Ac from the P-OVOV allele --Thomas Peterson 54
P-OVOV mutates to P-WW by deletion --Prasanna Athma and Thomas Peterson 55
Proteolytic enzyme activities in viviparous-1 and normal kernel tissues during development
--Kien Tjhen, J.D. Smith and D. G. Bai 56
Suppression of lipase activity by Vp and abscisic acid during kernel development
--D.G. Bai, C.W. Magill and J.D. Smith 56
Regulation of anthocyanin synthesis in aleurone by Vp and abscisic acid --J.D. Smith and B.G. Cobb 57
Anaerobic respiration and ethanol production in root tips from wild type and Adh1-null seedlings acclimated or not
acclimated to low oxygen --D.J. Hole, P.S. Hole, M.C. Drew and B.G. Cobb 58
--Siegfried Feldmar, Reinhard Kunze and Peter Starlinger 59
Binding of Ac- encoded protein to Ac- DNA --Reinhard Kunze and Peter Starlinger 59
Analysis of Ac sequences required for transposition --George Coupland, Christiane Plum and Peter Starlinger 59
Analysis of the N-terminus of Ac transposase in transgenic tobacco plants --Min-gang Li and Peter Starlinger 60
Transcription of the Bz2 locus --Gregor Schmitz, Nikolaus Theres and Peter Starlinger 60
Chromosome breakage at the Ds-induced sh-m6233-Dip allele --Detlef Piatkowski and Hans-Peter Döring 60
Chromosome 8 Mapping Data, 1989 --Dan England and M. G. Neuffer 61
Chromosome-Breaking Ds Sites --M. G. Neuffer 61
id mutants from EMS treatment --M. G. Neuffer and M. T. Chang 62
Designation of four recessive mutants --M. G. Neuffer 62
Designation of four dominant mutants --M. G. Neuffer 62
8L Linkage Data: Bif1, Sdw1 --M. G. Neuffer 63
Tester stocks for B-A translocations --J. B. Beckett 63
Preliminary data on Mu tagging of ij --Chang-deok Han and Ed Coe 65
Apparent non-random chromosome locations of mutant loci recovered from a Mutator-mutagenesis
--Bill Cook and Don Miles 65
An interesting leaf development mutant from a Mutator active line which causes a loss of leaf blade
--Donald Miles 66
dek1 interferes with aleurone differentiation --Karen C. Cone, Emily B. Frisch and Thomas E. Phillips 67
Yet another rapid plant DNA prep --Karen Cone 68
Multiple fertility restorer genes for EP (Z.p.) cytoplasm --K. J. Newton and E. H. Coe, Jr. 68
Effect of maize nuclear background on cytochrome c oxidase transcripts in teosinte mitochondria
--Pam Cooper, Ed Butler and Kathy Newton 69
Effect of maize nuclear background on mitochondrial protein synthesis in Zea luxurians mitochondria
--Pam Cooper and Kathy Newton 69
Molecular analysis of the NCS3 mitochondrial mutant --M. D. Hunt and K. J. Newton 70
Molecular analyses of the NCS2 mutant --Deborah L. Roussell and Kathleen J. Newton 70
DIMBOA glucosyltransferase does not glucosylate quercetin --B. A. Bailey and R. L. Larson 70
--K. J. Newton, C. Knudsen, S. Gabay-Laughnan and J. Laughnan 72
--Carol Rivin and Douglas Underwood 74
Coordination of embryo maturation events by ABA --Carol Rivin and Timothy Grudt 74
Characterization of a cell wall protein in various tissues --Connie S. Bozarth and Carol Rivin 75
The root systems of maize with tillers --B. H. Choe, Y. W. Seo and H. B. Lee 75
A new recessive mutant - rind absence --B. H. Choe, K. K. Kang, W. K. Lee and H. B. Lee 75
--Michael Dowe, Carol Macomber and Anita S. Klein 76
Alkaline phosphatase activity in the aleurone and embryo of maize --Anita S. Klein and Carol M. O'Brien 76
Isolation and molecular analysis of Mu-induced bz1 and sh1 mutants
--Kristine Hardeman, Susan Belcher and Vicki Chandler 79
--P. Suprasanna, K. V. Rao and G. M. Reddy 79
Genotypic differences and effect of amino acids on somatic embryogenesis in immature embryo calli
--K. V. Rao, P. Suprasanna and G. M. Reddy 80
SEM and TEM characterization of embryogenic calli --K. V. Rao, P. Suprasanna and G. M. Reddy 80
Region 4 on the B chromosome: evidence for a unique function --Wayne Carlson 81
--Yuri Konstantinov, Galina Lutsenko and Vladimir Podsosonny 82
The role of RNA synthesis in the maintenance of functional activity of isolated mitochondria
--Yuri Konstantinov, Vladimir Podsosonny and Galina Lutsenko 82
--Yuri Konstantinov, A. S. Mashnenkov, Galina Lutsenko and Vladimir Podsosonny 83
phoresis --J. W. Higginbotham and J. S. C. Smith 83
The effect of different seed lots versus genotypes on 2-D protein profiles of seedlings
--J. W. Higginbotham, J. S. C. Smith and O. S. Smith 84
The effect of slightly varying imbibition periods versus genotypes on 2-D protein profiles of seedlings
--J. W. Higginbotham, J. S. C. Smith and O. S. Smith 85
RFLP's revealed among elite inbred lines and associations among lines revealed by multivariate analysis
--J. S. C. Smith, S. L. Bowen, R. A. Tenborg, R. Feazel, O. S. Smith and D. Grant 86
Associations among inbred lines revealed by RFLP data and correlations with F1 yield and heterosis
--J. S. C. Smith, O. S. Smith, S. L. Bowen, R. A. Tenborg and D. Grant 86
Comparison of heterosis among hybrids as a measure of hybrid relatedness with that to be expected on the basis of
pedigree --J. S. C. Smith and O. S. Smith 86
Recovery of plantlets from apical meristem culture --V. R. Bommineni, D. B. Walden and R. I. Greyson 87
Morphological study of male sterile-silky (ms-si or si1) --D. W. Dales, R. I. Greyson and D. B.Walden 88
Studies of some induced morphological mutants --V. K. Chaudhary and J. L. Minocha 91
Induced albino mutants --V. K. Chaudhary and J. L. Minocha 91
EMS-induced red cob mutants --V. K. Chaudhary and J. L. Minocha 92
Diversity and relationships of historically important sweet corn inbred lines --J. T. Gerdes and W. F. Tracy 93
RFLP diversity among P39 and four derivatives --J. T. Gerdes and W. F. Tracy 93
Effect of corngrass on cell wall components --W. F. Tracy and R. D. Hatfield 93
Lindsey-Meyers blue sweet corn --W. F. Tracy 93
Andromonoecious maize --W. F. Tracy 94
--P. F. Byrne, E. H. Coe, L. L. Darrah and K. B. Simpson 94
Post-pollination gene expression: a methodological approach and preliminary results
--Carla Frova and Gloria Padoani 95
Temporal and tissue specificity of enzyme coding genes in the developing kernel
--Carla Frova and Gloria Padoani 96
Preliminary results on induction of AluI-bands in maize chromosomes --Silvana Faccio Dolfini 96
Light regulated and tissue specific expression of Sn --Gabriella Consonni and Chiara Tonelli 97
Transient expression of fragments from the 5' flanking region of a zein gene in electroporated protoplasts
--G. Giovinazzo, I. Coraggio, A. Viotti and L. A. Manzocchi 97
Characterization of cDNA clones for glutelin polypeptides
--F. Sparvoli, F. Quattrocchio, M. W. Bianchi, L. Bernard, N. E. Pogna and A. Viotti 98
Using selfs of monosomic plants for RFLP studies --David F. Weber 99
Characteristics of maize monosomics --David F. Weber 100
Confirmation of the linkage between Tp1 and sl1 --Scott Poethig 101
The location of Wrk1 --Scott Poethig 101
Characterization and complete sequence of a cDNA encoding for ubiquitin from W22
--Keqin Chen, John Hunsperger and Irwin Rubenstein 102
Detection of amino acid variants --Deborah A. Muenchrath and Ronald L. Phillips 102
Activation of the Spm transposable element in a tissue culture-derived plant
--V. M. Peschke, R. L. Phillips and L. Pritchard 103
Relation of maturity and the 185bp DNA sequence in knob heterochromatin
--R. L. Phillips, J. Suresh and S. Kaeppler 103
Characterization of sethoxydim and haloxyfop tolerant mutants selected from tissue culture
--W.B. Parker, F.A. Keith, J.D. Burton, D.A. Somers, D.L. Wyse, J.W. Gronwald and B.G. Gengenbach 104
Threonine overproducing mutants exhibit aspartate kinases with reduced feedback inhibition
--S.B. Dotson, D.A. Somers and B.G. Gengenbach 105
Plastid transcript accumulation in developing endosperm --Andrew McCullough and Burle Gengenbach 105
Purification of dihydrodipicolinate synthase from suspension cultures
--David A. Frisch, Burle G. Gengenbach and David A. Somers 106
Zea diploperennis-maize hybrid adapted to the U. S. corn belt --Lawrence A. Carlson and Steven C. Price 107
--Tim Helentjaris, Donna Shattuck-Eidens and Russell Bell 109
A survey of Iowa Stiff Stalk Synthetic parents, derived inbreds and BSSS(HT)C5 using RFLP analysis
--Susan L. Neuhausen 110
Variation in the organization of the mitochondrial genome --Christiane Fauron and Marie Havlik 111
--Manju Gupta, F. Dale Park, Bradley Hoo, Matthew Frome, David Zaitlin, Yan-San Chyi, William D. Banks and Philip Filner 112
Identification of RFLP markers for the rhm gene
--Yan-San Chyi, Manju Gupta, Matthew J. Frome, F. Dale Park, Bradley Hoo, David Zaitlin, William D. Banks,
James Perkins and Philip Filner 112
--Diana Beckman, Christine Bredenkamp, Ann Larkin, Ann Majerus, Doug Mead, Carol Wangen and
Edward Weck 113
--Faith C. Belanger, Nancy M. Houmard, Lee Stromberg and Alan L. Kriz 115
Globulin gene expression during precocious germination in maize viviparous mutants
--Alan L. Kriz, Jana S. Holt and Renato Paiva 116
Comparison of globulin gene expression in normal, opaque-2, and floury-2 kernels
--Jayne L. Puckett, Mark Wallace and Alan L. Kriz 116
Variation in the vigor of plants regenerated from a single petri dish of regenerable callus
--David Duncan and Jack Widholm 116
Allelism tests of somaclonal variants --Brent Zehr, David Duncan and Jack Widholm 117
4L mapping and Mo17 --D. M. Steffensen 117
Reid Yellow Dent--knob genetics, maturity and yield --D. M. Steffensen 118
Nuclear control over molecular characteristics of cms-S male-fertile cytoplasmic revertants
--G. Zabala, S. Gabay-Laughnan and J. R. Laughnan 118
Naturally occurring restorers of cms-S are located at various chromosomal sites in different inbred lines and
appear to be transposable --J. R. Laughnan, S. Gabay-Laughnan and Janet M. Day 120
Evidence for transposition of the naturally occurring cms-S restorer in inbred line CE1
--J. R. Laughnan, S. Gabay-Laughnan and Janet M. Day 121
Behavior of cms-S pseudorestorer genes --S. Gabay-Laughnan and J. R. Laughnan 122
Nature of cms-S pseudorestorer genes --J. R. Laughnan and S. Gabay-Laughnan 122
maize --S. V. Singh, N. J. M. Rao and R. M. Singh 123
Multiranking in the floral and vegetative phase --Walton C. Galinat 125
Ear shape as a correlate of differences in rachilla and cupule development that trace to two independent domesti-
cations of two different teosintes --Walton C. Galinat 125
Sexual feedback, internode elongation and perfect-flowered dwarfs --Walton C. Galinat 125
The biphyletic hybrid vigor of the Corn Belt Dent --Walton C. Galinat 126
On the vital function of the ligule in maize --Walton C. Galinat 126
A note on RFLP probes: their dissemination and utilization --J. L. Bennetzen 128
--Zin Tai-chen, Dan De-xiang, Xu Ming-liang and Liu Da-wen 128
IV. Maize Genetics Cooperation Stock Center 135
V. Mapping 140
VI. Mailing List 156
VII. Recent Maize Publications 167
VIII. Symbol Index 185
IX. Author and Name Index 190
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