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Hybrid between Hordeum jubatum L. X Secale cereale L. and its backcross generations with rye. III. Meiosis in BC1



Hybrid between Hordeum jubatum L. X Secale cereale L. and its backcross generations with rye. III. Meiosis in BC1



Genetica Polonica 22(1): 25-35



At metaphase I in PMCs of 15 partially fertile BC1 plants (2n = 28) from (H. jubatum X S. cereale) X S. cereale, bivalents per cell averaged 12.5-13.1. Pairing between H. jubatum chromosomes was homeologous autosyndetic, with a mean of 5.8-6.7 bivalents per PMC, and between rye chromosomes was homologous allosyndetic, with a mean of 6.1-6.8 bivalents per PMC. Univalents averaged 1.6-3.4 per PMC and formed more frequently from H. jubatum chromosomes than from rye chromosomes.

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