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中国栎属九种植物的核型分析
曹明; 周浙昆;
中国科学院昆明植物研究所!云南昆明650204
摘要:
报道了中国栎属 ( Quercus L inn.) 9种植物的核型。结果如下 :帽斗栎 ( Q.guyavaelofia) :2 n=2 4 =2 2 m+2 sm,属于“1A”类型 ;富宁栎 ( Q.setulosa) :2 n=2 4 =2 0 m+4sm,属于“2 A”类型 ;炭栎 ( Q.utilis) :2 n=2 4 =2 4 m,属于“2 A”类型 ;乌冈栎 ( Q.phillyraeoides) :2 n=2 4 =2 0 m+4sm,属于“2 B”类型 ;匙叶栎 ( Q.dolicholepis) :2 n=2 4 =2 0 m+4sm,属于“2 B”类型 ;岩栎( Q.acrodonta) :2 n=2 4 =2 2 m+2 sm,属于“2 B”类型 ;麻栗坡栎 ( Q.marlipoensis) :2 n=2 4 =2 4 m,属于“1B”类型 ;锥连栎 ( Q.franchetii) :2 n=2 4 =2 2 m +2 sm ,属于“1B”类型 ;麻栎 ( Q.acutissima) :2 n=2 4 =2 0 m+4sm,属于“2 B”类型 .其中除麻栎外 ,另 8种的核型系首次报道。研究结果表明 ,上述核型在种间较相似 ,但以组为单位进行比较时 ,则有一定的价值 ,有可能为揭示栎属的系统演化提供新的证据。
关键词:  壳斗科  栎属  核型  
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