(Linkage Groups and Collections)
Udda Lundqvist
Svalöf Weibull AB
SE-268 81 Svalöv, Sweden
Agenda:
The following topics were brought up for discussion during the workshop:
1. Nomination of Coordinators.
2. The need of Coordinators in the future.
3. Barley Genetics Newsletter (BGN): Publication, Coordinators.
4. Integration of molecular and visible barley maps.
5. International Database of Barley Genes and Genetics Stocks.
a) Description of all available morphological mutant stocks.
b) Incorporation of all available information of the Barley Genes into the International Database of GrainGenes.
6. Maintenance of Genetic Stocks
7. Available multiple marker stocks
8. Chromosome renumbering
1. Nomination of Coordinators:
In the following, a list of the Chromosome Linkage Groups and Genetic Stock Collections is presented with the names of the individuals who have agreed to be coordinators.
A. The Overall Chairman for the Chromosome/Linkage Groups and Collections:
Udda Lundqvist, Sweden, no change.
B. Coordinators, Chromosome Linkage Groups
a. Chromosome 1 (7H): Lynn Dahleen, USA, replaces Reg Lance, Australia, and D. Laurie, UK.
b. Chromosome 2 (2H): Jerry Franckowiak, USA, appointed and replaces S. Wang, USA.
c. Chromosome 3 (3H): T. Konishi, Japan.
d. Chromosome 4 (4H): B. Forster, UK.
e. Chromosome 5 (1H): Jens Jensen, Denmark.
f. Chromosome 6 (6H): Duane Falk, Canada.
g. Chromosome 7 (5H): George Fedak, Canada.
C. Coordinators, Genetic Stock Collections
a. Barley Genetics Stock Center at Aberdeen, ID: An Hang, USA, replaces the late T. Tsuchiya, USA.
b. Trisomics and aneuploid stocks: An Hang, USA, replaces the late T. Tsuchiya, USA.
c. Translocations and balanced tertiary trisomics: G. Künzel, Germany.
d. Desynaptic genes: G. Künzel, Germany.
e. Autotetraploids: W. Friedt, Germany.
f. Disease and pest resistant genes: Brian Steffenson, USA, joins J.H. Jørgensen, Denmark, and replaces Jørgensen after July 1997.
g. Eceriferum genes: U. Lundqvist, Sweden.
h. Chloroplast genes: D. von Wettstein, USA, replaces D. Simpson, Denmark.
i. Genetic male sterile genes: M.C. Therrien, Canada.
j. Inversions: B.O. Bengtsson, Sweden.
k. Anthocyanin genes: B. Jende-Strid, Denmark.
l. Ear morphology genes: U.Lundqvist and A. Hagberg, Sweden.
m. Semi-dwarf genes: J.D. Franckowiak, USA.
n. Earliness genes: U. Lundqvist, Sweden.
o. Chromosome duplications: A. Hagberg, Sweden.
p. Monoclonal antibodies: S. E. Ullrich, USA.
q. Biochemical mutants (including lysine, hordein and nitrate reductase genes: A. Kleinhofs, USA.
r. Barley-wheat genetic stocks: A. K. M. R. Islam, Australia.
Regarding the Monoclonal antibodies and Biochemical mutant collections it was considered whether a special coordinator was needed in the future. The workshop postponed the decision to the next International Barley Genetics Symposium in the year 2000.
The workshop also considered the necessity of preparing a list of the existing Biochemical mutants for publication in one of the next issues of Barley Genetics Newsletter (BGN) by the present coordinator.
A complete list of the coordinators, names and their addresses will be published in Barley Genetics Newsletter (BGN) annually.
2. The Coordination System.
The necessity of the coordination system in the future was discussed. The workshop concluded the continuation of coordinators for the seven chromosomes and collections at least until the next International Barley Genetics Symposium. Also the importance of the annual reports by the coordinators was stressed.
3. Barley Genetics Newsletter (BGN): Publication.
Diane Mather, Canada, nominated as technical editor and assisted by P.M. Hayes, USA and U. Lundqvist, Sweden, at the 15th North American Barley Research Workshop in Guelph, Canada, in 1993, will continue. D. Mather reported on the status of the Newsletter and stressed that it will be published electronically and on paper. Volumes 24 and 25 are already provided on the INTERNET, earlier volumes 1 - 23 are in preparation to be included on the INTERNET. In the future, articles will be accepted at any time (either as E-mail or on a floppy disk), and will be included into the Internet. The annual coordinators' reports will be compiled by the Overall Chairman for the Linkage Groups and Collections once a year. In addition, each year a complete volume will be provided as a hard copy for the time being.
4. Integration of Barley Genetics Marker Maps.
The members of the workshop discussed intensively the necessity of the integration of molecular and morphological marker maps. The workshop agreed the nomination of a new coordinator for this purpose. Andy Kleinhofs, Pullman, USA, has been appointed.
5. International Database of Genes and Stocks
a) Description of all available morphological mutant stocks.
Great efforts for incorporation of the Barley Genes and Genetic Stocks into the Triticeae Genome Database "GrainGenes" have continued mainly during the years 1995 and 1996. As basic information of the barley mutants, about 450 barley loci, formerly published and new descriptions have been revised and will be published in a special issue of the Barley Genetics Newsletter (BGN 26). Many of these loci control expression of morphological markers. About 600 different barley genes have been backcrossed into a common genetic background, the cultivar "Bowman". These backcross-derived lines will also be listed as seed stocks in the descriptions. As Barley Genetics Newsletter also appears electronically, the revised descriptions will be found on the INTERNET.
b) Incorporation of all available information into the International Database of GrainGenes.
When the publication of the barley loci descriptions has been performed, the information will be transferred into the Triticeae Genome Database "GrainGenes" by the ACEDB format. An example of the layout of the format in GrainGenes was presented. Every barley locus will also be illustrated with an image. The incorporation of the photographs is in progress.
6. Maintenance of genetic stocks
An Hang, the present curator of the Barley Genetic Stocks Collection, reported that the collection is moved from the Barley Genetics Stock Center at Fort Collins, CO, USA, to the National Small Grains Germplasm Research Facility at Aberdeen, ID, USA. It comprises about 1500 accessions including trisomics, translocations, balanced tertiary trisomics, desynaptic genes and doubled haploids of different crosses. All the stocks are checked for purity and stored in a cold room at a temperature of -5oC and available for distribution. The backcross-derived lines in different generations in the 'Bowman' genetic background, developed by J.D. Franckowiak, Fargo, ND, USA, are seed increased during 1996 and will be stored at Aberdeen.
The definite place of maintenance and storage of the Barley Genetics Stock Collection remains to be decided!
7. Available multiple marker stocks
The workshop considered the necessity of compiling all available multiple marker stocks. A listing of all existing stocks was urgently requested. The Genebank at Kurashiki, University of Okayama, Japan, with the responsibility of S. Taketa and T. Konishi is asked to prepare this list with all available seed stocks from Kurashiki (about 200 samples) and from Bob Wolfe, Lacombe, AB, Canada, for publication in one of the next issues of Barley Genetics Newsletter (BGN). Also the place of the seed storage is requested to be included in this list.
8. Chromosome renumbering
Already at the Sixth International Barley Genetics Symposium in 1991 the renumbering of the chromosomes to the wheat homoeologous chromosome designations (the Triticeae system) was discussed. A new suggestion was made by the International Database GrainGenes. The decision of renumbering the chromosomes was postponed to the workshop "The Barley-Wheat Chromosome Rationalization" at the same barley conference, organized by Ib Linde-Laursen, Denmark. The decision made there is stated in a special report of the workshop in Barley Genetics Newsletter.