Volume 10

T. E. Haus, Colorado
R. T. Ramage, Arizona
T. Tsuchiya, Colorado

Department of Agronomy
Colorado State University
Fort Collins, Colorado 80523, USA
April 10, 1980

(p. iii)
One decade has passed since the first issue of Barley Genetics Newsletter was published in 1971. For the editors it has been enjoyable work to publish the Newsletter, even though we have encountered some minor problems from time to time. We have never experienced a shortage of manuscripts. Only a limited number of manscripts were considered inadequate for this Newsletter and recommended for Barley Newsletter.

The Newsletter has been improved in various ways. However, we believe that there still is more room for improvement. For example, the list of literature in barley genetics is not well prepared. It is important to receive reprints and/or a list of all papers on barley genetics published from each institution to make the list more complete. Also most of the list of literature has been prepared in Fort Collins. If each of the active institutions prepare a list and send it to the editors, the list would be far more comprehensive. We need that type of cooperation from all barley workers.
Another area is the report from coordinators. We would like to have some information from each of the coordinators each year regardless of chromosome coordinators or genetic stock coordinators. Even brief notes from each coordinator will help all barley workers to know the activities of various centers.

At present the format is established as follows: I. Special Notices, II. Research Notes, III. Genetic and cytological techniques, IV. Reports from coordinators, V. Current linkage maps of barley, VI. Description of genetic stocks, VII. List of genetic stocks, VIII. List of recent publications on barley genetics, IX. Errata, and X. Mailing list.

We would like to have suggestions and/or comments on the format or any other aspects of the Newsletter useful to improve our publication.

In the next issue, Barley Genetics Newsletter, Volume 11, we would like to include complete indices for Volumes 1 to 10. If a worker or workers of an institution would prepare such indices, we would appreciate it very much.

Also we solicit suggestions for pictures or ideas for cover pages.

It is appropriate to mention here that most of the reports in the Barley Genetics Newsletter have been abstracted by the Plant Breeding Abstracts (England) and the Russian version of Plant Breeding Abstracts.


(p. iv)
Financial support for publication and distribution of Barley Genetics Newsletter has been given by the following countries and agency:
Federal Republic of Germany
U.S.A. (USDA/SEA) as a part of Research Grant for Barley Genetic Stock Center

The European contribution makes it possible to distribute the Newsletter to all European subscribers free of charge.

This support is greatly appreciated.


Telotrisomics have been useful in locating the centromere position in the linkage maps and associating genes with chromosome arms in barley. Triplo 5L, the telotrisomic for the long arm of chromosome 5 (5L) was the first telotrisomic cytologically established by karyotype analysis (Tsuchiya, 1972a, BGN 2:90-92; Tsuchiya, 1972b, J. Hered. 63:373-375). The genetic data from telotrisomic analysis (Fedak, 1969, Ph.D. Thesis; Fedak et al, 1972, Can. J. Genet. Cytol. 14:949-957; Tsuchiya, 1972, BGN 2:93-98; Tsuchiya and Singh, 1973, BGN 3:75-78) in combination with the cytological data resulted in a reversal of the linkage map of chromosome 5; the previous long and short arm became the short and long arm, respectively (Tsuchiya, 1972a,b). As a result of this revision, it was also found that almost all of the resistant genes for powdery mildew are located in the short arm of chromosome 5 (Jensen, 1980, BGN 10:88-100).

Figure 1 shows karyotype of two complete cells at somatic metaphase.

Figure 2 shows the previous (a) and the revised map (b) of chromosome 5 in barley.

BGN 10 toc
BGN Main Index