TABLE A2

Exchanges in ab4:4 tetrads

Single exchange
MarkerNo exchangeTwo chromatidThree chromatidFour chromatidMultiple exchanges
IR9(ab4:4)191222114
3133(ab4:4)11111513
  • All ab4:4 tetrads from strains KY48, KY49, KY51, KY52, and KY55 are shown. A two-chromatid single exchange is a tetrad with a crossover between the two PMS chromatids. A three-chromatid single exchange tetrad has two PMS chromatids and a crossover between one of the PMS chromatids and a non-PMS chromatid. A four-chromatid single exchange tetrad has two PMS chromatids and a crossover between the two non-PMS chromatids.