江西省广丰县柚资源调查和马家柚起源分析.pdf

华中农业大学2012届专业学位硕士学位论文马家柚母树为对照,马家柚1号、马家柚3号、马家柚5号和马家柚母树极有可能为同一品种(相似系数为1),马家柚2号、马家柚4号、土柚1号和土柚4 号与马家柚母树的亲缘关系极近。二、土柚17号、珀溪蜜柚和金标柚极有可能为同一品种(相似系数为1),土柚23号、瑁溪红柚、珀溪蜜柚之间亲缘关系极近()。三、,亲缘关系很近。四、资丘珀溪蜜柚不属于珀溪蜜柚这一品种,而与强德勒的亲缘关系较近,。五、马家柚、信木柚、新余柚1号、新余柚2号和临武县南强雷公柑一号都为独立柚品种。六、马家柚母树与信木柚()、瑭溪蜜柚()、瑁溪红柚()、沙田柚(相似系数 )、凤凰柚()、强德勒柚()、华农红柚()、HB柚()、胡柚()、鸡尾葡萄柚()等10个品种比较得出马家柚并非由它们任意一个品种变异而来。 :江西省广丰县及其周边地区柚资源已形成了一定的变异, 其在树势、嫩梢茸毛、雄蕊数、柱头高低、叶形、叶失、叶基、叶形指数、果皮颜色、果肉颜色、果实单果重、果形、风味和是否有籽等性状上差异最为明显, 其它方面性状趋于一致。 ,,将18个柚资源样品分为6个组群,,聚类分析图显示相似植物性状资源样品能聚在一起,而形态差异较大的资源样品分属不同组群,这种综合形态特征的数值分类方法将可能作为另一种手段来评定柚类品种。关键词:马家柚、种质资源、SSR、形态学性状、亲缘关系、品种鉴定江西省广丰县柚资源调查与马家柚起源分析 Abstract China is one ofthemain origin and ic variation centers ofpummelo【Citrus grandis(L.)Osbeck],in which there is along historyofplanting pummelo.、Because ofits monoembryo characteristic,pummelo have formed a very abundant ic diversity germplasms through long termevolvement under plicated environment and the choice province is one ofthemost important areas ofpummelo germplasm resources,in which alotoflocalvarieties ofpummelo have 200,Majiayou(C grandis(L.)Osbeck),es from Jiangxi province,has e the national product ofgeographical indication,but we know few about including the source,the ic relationship and morphological characteristic thisstudy,we collected a wide range ofpummelo germplasms from Guangfeng County Jiangxi province and itssurrounding the base of inverstigation,we detected ic diversity ofthelocalpummelo germplasms by SSR marker and morphological feature classification,which offered theoretical foundation forthesource,ic relationship and sustainable development of main results are asfollows: ofSSR primers thathadpolymorphisms bands were selected outofthe used 3lparis of