Summary
Covered and naked barleys from the Himalaya differ significantly from each other in a multivariate way (Murphy and Witcombe 1986). Two hypotheses which could account for this phenomenon are (1) that the caryopsis covering gene (or a gene closely linked with it) exerts a wide-ranging pleiotropic effect, and (2) that the covered and naked types have evolved to differ with respect to the alleles fixed at many loci. Experimental evidence is presented which supports the latter, an explanation which has implications for our understanding of barley phylogeny and evolution.
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References
Falconer DS (1981) Introduction to quantitative genetics, 2nd edn. Longman, London
Freisleben R (1940) Die phylogenetische Bedeutung asiatischer Gersten. Der Züchter 12:257–272
Hammer K (1984) Bestäubungsökologische Merkmale und Phylogenie von Hordeum L. subgen. Hordeum. Flora 175:339–344
Harlan JR (1968) On the origin of barley. US Dept Agric, Agric Handb 338:9–31
Harlan JR (1976) Barley. In: Simmonds NW (ed) Evolution of crop plants. Longman, London, pp 93–98
Harlan JR, de Wet JMJ (1971) Towards a rational classification of cultivated plants. Taxon 20:509–517
Mather K, Jinks JL (1971) Biometrical genetics: the study of continuous variation, 2nd edn. Chapman and Hall, London
Murphy PJ, Witcombe JR (1981) Variation in Himalayan barley and the concept of centres of diversity. In: Asher MJC, Ellis RP, Hayter AM, Whitehouse RNH (eds) Barley genetics, vol. IV. Editorial sub-committee, 4th Int Barley Genet Symp, Edinburgh, pp 26–36
Murphy PJ, Witcombe JR (1986) Covered and naked barleys from the Himalaya. 1. Evidence of multivariate differences between the two types. Theor Appl Genet 71:730–735
Murphy PJ, Witcombe JR, Shewry PR, Miflin BJ (1982) The origin of six-rowed ‘wild’ barley from the western Himalaya. Euphytica 31:183–192
Nie NH, Hull CH, Jenkins JG, Steinbrenner K, Bent DH (1975) SPSS, Statistical package for the social sciences, 2nd edn. McGraw-Hill, New York
Nilan R (1964) The cytology and genetics of barley 1951–1962. Washington State University Press, Pullman, Washington
Scholz F (1955) Mutationsversuche an Kulturpflanzen. 4. Über den züchterischen Wert zweier röntgeninduzierter nacktkorniger Gerstenmutanten. Kulturpflanze 3:69–89
Shao Q (1981) The evolution of cultivated barley. In: Asher MJC, Ellis RP, Hayter AM, Whitehouse RNH (eds) Barley genetics, vol IV. Editorial sub-committee, 4th Int Barley Genet Symp, Edinburgh, pp 22–25
Takahashi R (1955) The origin and evolution of cultivated barley. Adv Genet 7:227–266
Takahashi R, Hayashi J, Hiura U, Yasuda S (1968) A study of cultivated barleys from Nepal Himalaya and North India with special reference to their phylogenetic differentiation. Ber Ohara Inst Landwirtsch Biol Okayama Univ 14:85–122
Takahashi R, Inamura H, Matsumoto T (1961) Effects of the genes for covered and naked kernels on some agronomic characters in barley. 1. Comparison of two covered barleys and their naked mutants. Ber Ohara Inst Landwirtsch Biol Okayama Univ 11:385–392
Witcombe JR (1974) University College Bangor Nepal Expedition 1971: Rep Genet Conserv Project. University College of North Wales, Bangor
Witcombe JR (1975) Cereals in Nepal. FAO (Rome), Plant Genet Resources Newslett 31:19–28
Witcombe JR (1978) Two-rowed and six-rowed wild barley from the Western Himalaya. Euphytica 27:601–604
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Communicated by R. Riley