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作 者 ：王祖秀;彭正松;何奕昆

期 刊 ：作物学报 2000年 26卷 01期 页码：83-86

关键词：三叶半夏；减数分裂；小孢子发育；雄配子败育；染色体；

Keywords:Pinellia ternata, Meiosis, Microspore development, Male gamete abortion, Chromosome,

摘 要 ：从减数分裂过程， 小孢子发育和染色体数目与组成三方面探讨了三叶半夏雄配子败育的原因。 三叶半夏(Pinellia ternata)体细胞染色体数目2n=90， 其减数分裂异常， 多数同源染色体能配对形成二价体， 部分同源染色体呈单价体形式或配对成多价体。 减数分裂的各时期都能观察到导致遗传物质不均衡分离的异常结构， 如落后染色体

Abstract:The cause of abortion of male gamete in Pinellia ternata was studied through the investigation of the process of meiosis, the microspore development and the chromosome number of the somatic cells of P.ternata contained 90 chromosomes, but its meiosis was abnormal. Although most of the homologous chr

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