Gliadin Variations in Aegilops kotschyi and its Progentiors Ae. longissima and Ae. umbellulata
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S512.9

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    Abstract:

    Using acid polyacrylamide gel eletrophoresis(APAGE), the gliadin variation of 11 Ae. kotschyi accessions and its progentiors, 2 Ae. longissima accessions and 6 Ae. umbellulata accessions were analyzed. Thirty-two gliadin bands were separated by electrophoresis and thirty-one out of them showed polymorphism (96.88%). Each material had 10 to 17 bands and only 1 band was involved in all of the 11 Ae. kotschyi accessions . The genetic distance (GD) of 11 Ae. kotschyi accessions based on gliadin ranged from 0 to 0. 704, with an average of 0.409. The patterns separated in the 11 Ae. kotschyi accessions were mostly derived from Ae. longissima or Ae. umbellulata , though 8 bands weren't found in the two progentiors. Polymophism of Ae. kotschyi (96.88 % ) was obvious higher than Ae. longissima (52. 94 % ) or Ae. umbellulata (88. 89 % ); 4 out of the 11 Ae. kotschyi accessions had specitie bands. It probably indicated that the r region in Ae. kotschyi had been changed in comparison with that of Ae. longissima or Ae. umbellulata .

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  • Revised:September 04,2002
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