Abstract
The lax-a homeotic mutant of barley has flowers in which lodicules are replaced by stamens (giving five stamens per flower). RFLP mapping of an F2 population from a Bonus lax-a 1 x H. spontaneum cross showed that the mutation was on the short arm of chromosome 7(5H), closely linked to the centromere. An additional F2 population was used to show that the lax-a mutation gave the five-stamen phenotype in all flowers of 6-rowed spikes and that hoods were elevated and reduced in size in lax-a/Hooded double-mutant plants.
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References
Bossinger G, Lundqvist U, Rohde W, Salamini F (1992) Genetics of plant development in barley. In: Munck L (ed) Barley genetics VI. Proc 6th Int Barley Genet Symp. Munksgaard International Publishers Ltd., Copenhagen, pp 989–1022
Bossinger G, Rohde W, Lindqvist U, Salamini F (1993) Genetics of barley development: mutant phenotypes and molecular aspects. In: Shewry PR (ed) Barley: genetics, biochemistry, molecular biology and biotechnology. CAB International, Oxford, pp 231–263
Coen ES (1991) The role of homeotic genes in flower development and evolution. Annu Rev Plant Physiol Plant Mol Biol 42:241–279
Devos KM, Atkinson MD, Chinoy CN, Liu CJ, Gale MD (1992) RFLP-based genetic map of the homoeologous group-3 chromosomes of wheat and rye. Theor Appl Genet 83:931–939
Drews GN, Weigel D, Meyerowitz EM (1991) Floral patterning. Curr Opin Genet Dev 1:174–178
Graner A, Jahoor A, Schondelmaier J, Siedler H, Pillen K, Fischbeck G, Wenzel G, Herrmann RG (1991) Construction of an RFLP map of barley. Theor Appl Genet 83:250–256
Heun M, Kennedy AE, Anderson JA, Lapitan NLV, Sorrells ME, Tanksley SD (1991) Construction of a restriction fragment length polymorphism map for barley (Hordeum vulgare). Genome 34:437–447
Islam AKMR (1983) Ditelosomic additions of barley chromosomes to wheat. In: Sakamoto S (ed) Proc 6th Int Wheat Genet Symp. Mazuren Co. Ltd., Kyoto, pp 233–238
Kleinhofs A, Kilian A, Saghai Maroof MA, Biyashev RM, Hayes PM, Chen FQ, Lapitan N, Fenwick A, Blake TK, Kanazin V, Ananiev E, Dahleen L, Kudrna D, Bollinger J, Knapp SJ, Liu B, Sorrells M, Heun M, Franckowiak JD, Hoffman D, Skadsen R, Steffenson BJ (1993) A molecular, isozyme and morphological map of the barley (Hordeum vulgare) genome. Theor Appl Genet 86:705–712
Lander ES, Green P, Abrahamson JA, Barlow A, Daly MJ, Lincoln S, Newburg L (1987) MAPMAKER: an interactive computer package for constructing primary genetic linkage maps of experimental and natural populations. Genomics 1:174–181
Larsson HEB (1985a) Morphological analysis of laxatum barley mutants. Hereditas 103:230–253
Larsson HEB (1985b) Linkage studies with genetic markers and some laxatum barley mutants. Hereditas 103:269–279
Laurie DA, Pratchett N, Bezant JH, Snape JW (1995) RFLP mapping of five major genes and eight quantitative trait loci controlling flowering time in a winter x spring barley (Hordeum vulgare L.) cross. Genome 38:575–585
Murray MG, Thompson WF (1980) The isolation of high-molecular-weight plant DNA. Nucleic Acids Res 8:4321–4325
Okamura JK, den Boer BDW, Jofuku KD (1993) Regulation of Arabidopsis flower development. Plant Cell 5:1183–1193
Persson G (1969a) An attempt to find suitable genetic markers for dense ear loci in barley. I. Hereditas 62:25–96
Persson G (1969b) An attempt to find suitable genetic markers for dense ear loci in barley. II. Hereditas 63:1–28
Veit B, Schmidt RJ, Hake S, Yanofsky MF (1993) Maize floral development: new genes and old mutants. Plant Cell 5:1205–1215
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Laurie, D.A., Pratchett, N., Allen, R.L. et al. RFLP mapping of the barley homeotic mutant lax-a. Theoret. Appl. Genetics 93, 81–85 (1996). https://doi.org/10.1007/BF00225730
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DOI: https://doi.org/10.1007/BF00225730