The stock list and genetic information presented in the Barley Genetic Newsletter 21: 102-108 is valid and up-to-date.
A monograph on the genetic, spectroscopic and ultrastructural analysis of the xanthaalbina mutants have been published:
K.W. Henningsen, J.E. Boynton & D. von Wettstein: Mutants at xantha and albina loci in relation to chloroplast biogenesis in barley (Hordeum vulgare L.). Biologiske Skrifter 42, 1349. The Royal Danish Academy of Sciences and Letters. Available from Munksgaard Export and Subscription Service. Nørre Søgade 35, DK-1370 Copenhagen K, Denmark (DKK 700:-).