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五个中国荞麦(Fagopyrum)种的核型分析
陈庆富
贵州师范大学生物系遗传室!贵州贵阳550001
摘要:
用去壁低渗法对甜荞 ( Fagopyrum esculentum)、苦荞 ( F.tataricum)、左贡野荞 ( F.zuogongense Q.F.Chen) ,大野荞 ( F.megaspartanium Q.F.Chen)及毛野荞 ( F.pilus Q.F.Chen)等大粒组荞麦种的根尖和茎尖有丝分裂染色体进行了观察 ,并对其茎尖有丝分裂染色体的核型进行了比较分析。结果表明 :这 5种荞麦在核型上类似 ,都有 2对随体染色体 ,而且都为对称核型。但它们彼此有一定的差异。甜荞、苦荞、大野荞、毛野荞及左贡野荞的核型公式分别为 1 2 m+4m( SAT)、1 2 m+4sm( SAT)...
关键词:  荞麦    甜荞    苦荞    大野荞    毛野荞    左贡野荞    核型
DOI:
分类号:
Fund project:贵州省科委基金
Abstract:
Key words:  
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