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纤毛鹅观草与本田鹅观草的生物系统学研究
孙根楼; 刘芳; 颜济; 杨俊良;
1.四川农业大学小麦研究所;2.四川农业大学小麦研究所 都江堰市 611830;3.都江堰市 611830
摘要:
本文通过对鹅观草属的两个种:本田鹅观草(Roegneria hondai Kitagawa)和纤毛鹅观草(R.ciliaris(Trin)Nevski)及其种间杂种的形态变异、染色体配对行为和同工酶电泳酶谱的分析,研究了这两个种间的亲缘关系,杂种F1减数分裂染色体配对数很高,F1自然条件下具有低的结实率。R.ciliaris根部和幼叶的酯酶、过氧化物酯同工酶谱与R.hondai的酶谱间存在差异。上述结果表明,R.ciliaris和R.hondai亲缘关系很近,享有两个共同的基本染色体组,可拟定R.hondai的染色体组为Shyh。R.ciliaris同R.hondai间的亲缘关系较R.ciliaris同R.pendulina和R.pendulina同R.hondai间更近。
关键词:  鹅观草属  纤毛鹅观草  本田鹅观草  染色体组分析  同工酶分析  
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