00443naa a2200121 a 450000100080000000500110000800800410001910000180006024501230007826000090020170000210021077300900023118285152010-01-10       1974    bl ---       0--  u    #d1 aTHOMAS, J. B.  aA possible effect of heterochromation on chromosome pairing (giemsa banding/triticale/ amphiploid/synthetic species.).  c19741 aKALTSIKES, P. J.  tProceedings of the National Academy of Sciences USAgv. 71, n. 7, p. 2787-2790, 1974.