Relationships between spike morphology, hordeins and altitude within Ethiopian barley, Hordeum vulgare L. (Poaceae)

HereditasVolume 110, Issue 3 p. 203-209 Open Access Relationships between spike morphology, hordeins and altitude within Ethiopian barley, Hordeum vulgare L. (Poaceae) ZEMEDE ASFAW, Corresponding Author ZEMEDE ASFAW Department of Biology, Addis Abeba University, Addis Abeba, Ethiopia*Department of Biology, Addis Abeba University, P.O. Box 3434, Addis Abeba, EthiopiaSearch for more papers by this author ZEMEDE ASFAW, Corresponding Author ZEMEDE ASFAW Department of Biology, Addis Abeba University, Addis Abeba, Ethiopia*Department of Biology, Addis Abeba University, P.O. Box 3434, Addis Abeba, EthiopiaSearch for more papers by this author First published: June 1989 https://doi.org/10.1111/j.1601-5223.1989.tb00782.xCitations: 4AboutPDF ToolsExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract Three sets of data, i.e., morphological (relating to the spike), biochemical (hordein), and environmental (altitude), were recovered on a sample of the presently cultivated landrace varieties of Ethiopian barley. Application of a computer programme involving multivariate statistical analyses uncovered the latent but significant associations among the three parameters. Thus, associations were evident between morphology and hordeins, morphology and altitude, and hordeins and altitude. The magnitude of the observed association was highest between morphology and hordeins (R2=46 %) and lowest between hordeins and altitude (R2=5 %). Each morphological character studied was identified with one or a few hordein bands, while altitude was associated with a few hordein bands and some spike characters. In some cases a character was found to be simultaneously correlated with two characters from the other parameters. These results are interpreted as arising from linkages, accumulations, and/or pleiotropic effects of some genes. A deeper understanding of the nature of the relationships indicated by these results requires further studies involving pure lines for individual characters. References Aberg, E. and Wiebe, G. A. 1948. Taxonomic value of characters in cultivated barley. USDA Technical Bulletin 942, p. 88. Alkamper, J. von 1974. 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