Abstract
Meiosis was studied in aT. turgidum ×Ae. longissima hybrid (ABS1, 2n = 21) and in backcrosses of its amphidiploid toT. turgidum. Analysis of PMCs of the hybrid showed that non-reductional meiosis led to the production of a large number of non-reduced male gametes. The hybrid showed high seed set. All progeny had 2n = 42. The BC1 plants (2n = 35, AABBS1) showed the expected meiotic pairing of 14II + 7I. At anaphase I, univalents behaved in a non-reductional way. The possible role of meiotic non-reduction is discussed in terms of the evolution of theTriticum-Aegilops complex.
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Pignone, D. Non-reductional meiosis in aTriticum turgidum ×Aegilops longissima hybrid and in backcrosses of its amphidiploid withT. turgidum (Poaceae). Pl Syst Evol 187, 127–134 (1993). https://doi.org/10.1007/BF00994095
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DOI: https://doi.org/10.1007/BF00994095