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作 者 ：冯海生 解俊峰

期 刊 ：西北植物学报 1999年 2期

关键词：小麦；减数分裂；染色体构型；自然变异；细胞学；

Keywords:wheat varieties, meiosis, chromosomal configuration, natural variance,

摘 要 ：对９个小麦品种群体进行了细胞学观察。结果表明，４．５３％的细胞含有至少一对不配对的染色体，２．３１％的细胞里，染色体偏离正常的数目。显然，这种自然的不规则性可能导致非整倍体后代的产生。３．５７％的细胞发生了易位，群体的２．２２％为单体植株。

Abstract:Cytology was observed in nine wheat varietal populations.The results showed that 4.53% of PMCs contained at least one unpaired of chromosomes and 2.31% of PMCs had a chromosome number deviating from their normal numbers.Clearly irregularities of this natu

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