BGN 13: Localization on barley chromosome 6 of the gene Acol coding for aconitate hydratase BARLEY GENETICS NEWSLETTER, VOL. 13, II. RESEARCH NOTES
Nielsen and Johansen, p. 59

II. 30. Localization on barley chromosome 6 of the gene Acol coding for aconitate hydratase.

Gunnar Nielsen and Hanne Johansen, Agricultural Research Department, Risø National Laboratory, DK-40Q0 Roskilde, Denmark.

A locus for an enzyme suggested to be a fructosephosphate dehydrogenase was localized to chromosome 6 by means of wheat-barley addition lines and designated Fpdl (Nielsen 1982). However, further studies have shown that the enzyme is an aconitate hydratase (aconitase). Therefore we propose to cancel our previous locus designation and instead use Acol which has been suggested by Brown and Munday (1982).

The Acol locus has been further localized by linkage studies with several chromosome 6 marker genes in two crosses. In one cross Acol was found linked with l9 (6.5 + 2% recombination) and free recombination was found betweel Acol and the loci o, uc2, and r,,e. In the other cross free recombination was found between Acol and the loci uc2 and gs4.

References:
Brown, A.H.D. and J. Munday. 1982. Population genetic structure and optimal sampling of land races of barley from Iran. Genetica 58:85-96.

Nielsen, G. 1982. Supplementary and new evidence on the location of five enzyme loci on barley chromosomes. BGN 12:68-69.

BGN 13 toc
BGN Main Index