BGN 2: Possible origin of aneuploids BARLEY GENETICS NEWSLETTER, VOL. 2, II. RESEARCH NOTES
Pearson and Nilan, p. 65

II.23. Possible origin of aneuploids.

Orin Pearson and R. A. Nilan. Department of Agronomy and Soils, Washington State University, Pullman, Washington 99163, U.S.A.

Preliminary studies have suggested that at least some of the aneuploids observed among progeny of desynaptic mutants as well as certain virus infected varieties may be a result of an exchange of nuclear material during microsporogenisis (cytomixis). Microsporocytes from several desynaptic lines and from Trystofte Prentice which was 60% infected with barley stripe mosaic virus are being cytologically examined for nuclear exchanges during prophase I and for extra chromosome pairs at metaphase I of meiosis. Electron microscope studies have been initiated to analyse the possible nuclear exchange at the ultra structural level.

BGN 2 toc
BGN Main Index