Abstract:Chromosome analysis of pineapple (Ananas comosus (L.) Merr.), one of the most important tropical fruit trees, was conducted. All experiments were carried out using root tips derived from three cross combinations as plant materials. Good preparations, with all 50 chromosomes relatively extended and well-spread without cytoplasm, were observed under enzyme conditions of "2% Cellulase Onozuka RS and 0.5% Pectolyase Y-23" without pretreatment with 2 mM 8-hydroxyquinoline. CMA-positive (+) bands were observed in te… Show more
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