摘要
对不同地理居群和不同地形的160株伊犁绢蒿(Seriphidium transiliense)个体进行SRAP分析,以期为伊犁绢蒿遗传资源的有效利用提供理论依据。试验结果表明,1)伊犁绢蒿种群的多态位百分率为78.43%;2)不同地理居群的伊犁绢蒿各居群间没有明显的分界点,说明地理距离差异对伊犁绢蒿遗传分化物质的影响较小;3)不同地形的伊犁绢蒿可以聚为2类,将阳坡和平原聚为一类,阴坡和丘陵聚为一类。由结果可见,地形对伊犁绢蒿遗传物质分化的影响较大。
The 160 plants of Seriphidium transiliense with the different geographical population growing at different terrains was used to screen the genetic diversity by SRAP technical analysis for providing the useful information for utilization this plant resource. The results of this study showed the percentage of polymorphism loci of S. transiliense population was 78.43. This study also indicated that the obvious demarcation point was not found among the different geographical population of S. transiliense, implying that the difference in geographical distance between S. transiliense populations did not affect the hereditary substance of S. transiliense. However, 160 plants were clustered into two groups, and one group consisted of sunny slope and plain populations, the other group consisted of shady slope and hilly populations, indicating that terrain showed a greatly effect on the hereditary substance of S. transiliense.
出处
《草业科学》
CAS
CSCD
北大核心
2011年第1期94-99,共6页
Pratacultural Science
基金
教育部高等学校博士学科点专项科研基金项目(20096504110002)
新疆草地资源与生态重点实验室开放课题(XJDX0209-2007-05)
关键词
地理居群
地形
遗传多样性
伊犁绢蒿
geographical population
terrains
genetic diversity
Seriphidiurn transiliense
