元阳传统水稻品种月亮谷种内遗传多样性研究  

Studies on Genetic Diversity of Traditional Rice Variety of Yuelianggu from Yuanyang

作　　者：姜波[1] 王云月[1] 

机构地区：[1]云南农业大学农业生物多样性应用技术国家工程中心,云南昆明650201

出　　处：《华北农学报》2013年第S1期85-90,共6页Acta Agriculturae Boreali-Sinica

基　　金：国家"973"计划资助项目(2006CB100205)

摘　　要：云南部分水稻地方品种栽培历史悠久,是种质资源有效保护、可持续发展研究的极佳材料。利用24个SSR标记和20个表型性状,对采自元阳哈尼梯田4个村寨的40份月亮谷和5份对照品种进行分析。结果显示,24个标记共检测出67个等位基因,平均2.79个,变幅为1~4个,有效等位基因为36.60个,平均1.52个,变幅为1.05~2.58,Nei多样性指数平均值为0.64。40份月亮谷的质量性状变异系数较小;数量性状变异系数较大,变异系数范围为2.54%~24.89%。研究表明,相同地方品种不同村寨的居群遗传多样性不同,当地农民通过村寨之间的交换维系地方品种的持久发展。Some rice landraces have been planted for a long history ,and are important research samples for ef-fective conservation and sustainable development of crop germplasm resources .In this research ,we analyzed the ge-netic diversity of 40 Yuelianggu samples from 4 villages in Yuanyang Hani′s terraced fields by using 24 SSR mark-ers and 20 phenotypic traits .The results showed that a total of 67 alleles were found in all of the samples with the average of 2.79 and range from 1 to 4.The number of effective allele was 36.60 with the mean of 1.52 and ranged from 1.05 to 2.58.The mean of Nei′genetic diversity index (I) was 0.64.The variation coefficient of 40 samples was larger than those of qualitative coefficient with a range from 2 .54%-24 .89%.The results also showed that the same local variety had different genetic diversity when planted at different villages .Exchanging seed among villages can be used to keep a sustainable development for the local varieties .

关 键 词：水稻 微卫星标记 遗传多样性 农家保护 

分 类 号：S511[农业科学—作物学]