Preferential pairing estimates from multivalent frequencies in tetraploids.

  title={Preferential pairing estimates from multivalent frequencies in tetraploids.},
  author={J. Sybenga},
  volume={37 6},
Mathematical models are presented for estimating preferential pairing and chiasma parameters in amphidiploids and autotetraploids on the basis of diakinesis or metaphase I configuration frequencies and are compared with other approaches of estimating affinity. With a preferential pairing factor p, estimated from quadrivalent and trivalent frequencies, and estimated chiasmate association factors for the two arms in quadrivalents (a(qu) and b(qu) for arms A and B, respectively) and in bivalents… CONTINUE READING
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