02297naa a2200325 a 450000100080000000500110000800800410001910000150006024501240007526000090019950001470020852012450035565000180160065000110161865000130162965000270164265000120166965300160168165300170169765300150171465300140172965300150174365300090175870000240176770000210179170000200181270000180183270000320185077300890188211074632018-11-08       2002    bl uuuu     u00u1 u    #d1 aABDALA, L.  aBiochemical traits useful for the determination of genetic variation in a natural population of Myracrodruon urundeuva.  c2002  aTítulo em português: Biochemical traits useful for the determination of genetic variation in a natural population of Myracrodruon urundeuva.  aThe objectives of this work were to analyze seeds from 20 trees of aroeira (Myracrodruon urundeuva Fr. All.) of a natural population located in the region of Selvíria, State of Mato Grosso do Sul, Brazil, in order to evaluate their protein, lipid and carbohydrate contents, and to estimate their genetic variation. A completely randomized experimental design consisting of 20 treatments (families) was set up, with two replications. Four types of proteins were detected: albumin (35.0 to 107.3 mg/g seed), globulin (3.4 to 9.3 mg/g), prolamin (60.0 to 135.2 mg/g) and glutelin (118.0 to 286.0 mg/g). The lipid content varied between 200 and 334 mg/g seed. The total sugars also varied (26.5 to 46.3 mg/g seed), with a predominance of polyols (arabinitol, mannitol, glucitol and xylitol). The main monosaccharides detected were glucose and arabinose. Total hydrolysis of the sugars indicated the presence of neutral arabinan and xylan oligosaccharides. The starch content varied from 0.35 to 1.58 mg/g seed. These biochemical traits showed considerable genetic variability, indicating that only the collection of seeds from many different trees can provide a representative sample of the population for conservation and genetic improvement.  acarbohydrates  alipids  aproteins  aMyracrodruon Urundeuva  aSemente  aavaliação  acarboidratos  aevaluation  alipídios  aproteínas  aseed1 aMORAES, M. L. T. de1 aRECHIA, C. G. V.1 aGIORGINI, J. F.1 aSÁ, M. E. de1 aPOLIZELI, M. de L. T. de M.  tPesquisa Agropecuária Brasileira, Brasília, DFgv. 37, n. 7, p. 909-916, jul. 2002