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基于家蚕种质资源保存的死卵防止方法初探
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作者 朱琴 《四川蚕业》 2015年第2期10-11,共2页
蚕品种资源保存无论春用还是夏秋用品种,多年来以春制越年方式为主,但是连续采用该保存方式后,部分夏秋用品种出现死卵发生较高现象,使家蚕品种品质和种性维持受到严重影响。通过调查"台7"、"台11"入库前后到催青... 蚕品种资源保存无论春用还是夏秋用品种,多年来以春制越年方式为主,但是连续采用该保存方式后,部分夏秋用品种出现死卵发生较高现象,使家蚕品种品质和种性维持受到严重影响。通过调查"台7"、"台11"入库前后到催青各时期死卵数量及孵化率,分析死卵发生原因,提出防止死卵发生的方法,以达到提高家蚕种质资源质量、维持夏秋用家蚕品种种性的目的。 展开更多
关键词 种质资源保存品种 死卵发生原因 防止方法
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Comparison of Genetic Diversity Between Local Cultivated Aromatic and Non-aromatic Rice in Yunnan Province 被引量:6
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作者 白现广 程在全 +2 位作者 蔺忠龙 吕广磊 黄兴奇 《Agricultural Science & Technology》 CAS 2009年第1期56-59,共4页
[ Objective] The genetic diversity of the local cultivated aromatic rice and non-aromatic rice in Yunnan Province were compared to provide further genetic resources for breeding practice. [Method] Genetic diversity of... [ Objective] The genetic diversity of the local cultivated aromatic rice and non-aromatic rice in Yunnan Province were compared to provide further genetic resources for breeding practice. [Method] Genetic diversity of 10 aromatic rice and 45 non-aromatic rice were analyzed by 64 SSR primers covered on 12 rice chromosomes. [ Result] Per locus 5.44 and 7.98 alleles in average were detected, ranging from 2 to 12 and from 2 to 17 in aromatic and non-aromatic rice, respectively. Average genetic multiplicity index(Hs) was 0.46 and 0.67 respectively. The average polymorphism information content (PIC) was 0.43 and 0.58 in aromatic and non-aromatic rice respectively. [ Conclusion] The results indicated that genetic diversity was higher in non-aromatic rice than in aromatic rice. 展开更多
关键词 Aromatic rice Local cultivated rice SSR markers Cluster analysis Genetic diversity
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