A Database for Triticeae and Avena
IV. 23. Coordinator's Report: Haploid barley.
K. J. Kasha, Crop Science Department, University of Guelph, Guelph,
Ontario, Canada N1G 2W1.
Haploid barley is a new section of coordinator's reports for BGN and
was established at the 4th International Barley Genetics Symposia held
in Edinburgh, July 1981. At the Symposium, a Workshop on Barley Haploidy
was held and attended by about 50 researchers. A report will be forthcoming
in the Proceedings but one recommendation was for a coordinator to help
communication between researchers in this area.
A Questionnaire for haploid researchers was also distributed at the
Symposium in Edinburgh and 22 of these were returned. The main points from
this Questionnaire may be summarized as follows:
1) For area of interest in haploidy, there were 19 checks for research,
13 for breeding and 4 for teaching (some respondants checked more than
one area listed in the Questionnaire).
2) For the haploid production system being used or interested in, 16
specified the Bulbosum Method, 11 anther culture, 4 ovule culture and 7
the Haploid inducer gene.
3) For their objectives and specific uses of haploids, 15 indicated
cultivar production, 7 cytogenetics, 5 gene transfer, 5 cell, tissue and
organ culture, 5 disease or other selection purposes, 4 genetics, 3 quality,
3 botanical and 1 for population improvement.
4) Related research activities of respondants were 11 for in vitro culture
systems, 10 in chromosome doubling, 3 each in incompatibility systems and
gene localization, and 2 each in aneuploidy and gene cloning.
5) As to the preferred means of communication, 10 specified the BGN
and 8 a Haploid News Bulletin.
6) As to the best place for future haploid barley meetings, 12 specified
Haploid Symposia and 12 the International Barley Genetics Symposium.
7) The final question dealt with the area preference if haploid activities
were merged with other areas; 14 specified in vitro culture methods, 9
breeding methods, 7 cytogenetics or ploidy, 4 cereals, 4 crop plants, and
The results of the Questionnaire support the concept of communication
or coordination through the BGN and that a meeting forum of Haploid Symposia
or with the International Barley Genetics Symposia are preferable. The
strongest area of related interest is in vitro culture methods. Perhaps
future International Barley Genetics Symposia should consider a section
on Haploidy or combine it in a section with in vitro culture methods. The
applications to breeding and cultivar production is also an area of strong
I gather that the Steering Committee for the 3rd International Haploid
Symposium is considering a program combined with in vitro culture methods.
As coordinator for the Haploid Barley area, I will be drawing up a list
of researchers involved in this area and will circulate it. If you wish
to be included, please drop me a note and indicate your area of haploid
research and applications or objectives. Once a year I will request information
for the Coordinator's Report in BGN. If deemed desirable, this information
could be circulated as well.
Over the past year, there have been indications that anther culture
procedures for haploid barley production have been much more successful
(Kao, 1981; Xu et al., 1981; Friedt and Foroughi-Wehr, 1981), with liquid
culture media being useful. The new system of a haploid inducer gene (hap)
is also creating much interest (Hagberg and Hagberg, 1980, 1981) but needs
more research on the mechanism and frequencies of useful haploids for breeding
purposes. The Bulbosum Method continues to expand in use relative to barley
breeding programs with two cultivars now licensed for production; Mingo
in Canada and Gwylan in New Zealand (the latter produced at Aberystwyth,
Wales) (See Kasha and Reinbergs, 1981).
Friedt, W. and B. Foroughi-Wehr. 1981. Anther culture of barley: Plant
regeneration and agronomic performance of homozygous diploid progenies.
Barley Genetics IV (In press).
Hagberg, A. and G. Hagberg. 1980. High frequency of spontaneous haploids
in the progeny of an induced mutation in barley. Hereditas 93:341-343.
Hagberg, G. and A. Hagberg. 1981. Haploidy initiator gene in barley.
Barley Genetics IV (In press).
Kao, K. N. 1981. Plant formation from barley anthers cultured with Ficoll
media. Z. Pflanzenphysiol. (In press).
Kasha, K. J. and E. Reinbergs. 1981. Production and utilization of haploids
in barley. Barley Genetics IV (In press).
Xu, Z., B. Huang and N. Sunderland. 1981. Recent advances in barley
anther culture. Barley Genetics IV (In press).
BGN 12 toc
BGN Main Index