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Joint segregation of Adh2 allozymes and a PCR-based marker of AdhC7. (A) Adh2 allozymes in 10 haploid megagametophytes of a single tree as detected using starch gel electrophoresis and enzyme staining. (B) PCR amplification products of AdhC7 from the same set of 10 megagametophytes revealed by agarose gel electrophoresis and ethidium bromide staining. Size markers shown in the right hand lane are the 1636-, 1018-, and 506-bp fragments of a 1-kb DNA ladder (GIBCO/BRL).
