Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Acta Agronomica Sinica》 2007-05
Add to Favorite Get Latest Update

Analysis of Relationships for Indica Local Rice from Different Places of China

ZHANG Yuan-Yuan,CAO Gui-Lan,and HAN Long-Zhi(Institute of Crop Sciences,Chinese Academy of Agricultural Sciences/The National Key Facility for Crop Gene Resources and Genetic Improvement,NFCRI/Key Laboratory of Crop Germplasm Resources and Biotechnology,Ministry of Agriculture,Beijing 100081,China)  
The genetic diversity of rice parents in rice breeding was not enough at present.Rice germplasm recourse is abundance in China and can be found everywhere,it is very important to utilize rice germplasm effectively.The relationships among indica local rices from different places of China was studied in order to give the principle of rice breeding.SSR analysis for 440 indica local rices selected from 14 provinces of China was conducted with 61 microsatellite markers,and genetic distance and dendrogram ot them among different provinces,longitudes and latitudes were analyzed.Relationships for indica local rice of different provinces,different longitudes and different latitudes were compared.The results indicated that the genetic distance of indica local rice among provinces ranged from 0.0707 to 0.4076;the genetic distance among different longitudes ranged from 0.0680 to 0.3032;the genetic distance among different latitudes ranged from 0.0385 to 0.2696.The indica local rice varieties located on contiguous province,longitude and latitude were basically clustered into same group,it had nearer genetic distance and relatives,while these located on more far geographic area were basically clustered into different groups,with farther genetic distance and relatives.The results showed there was close correlation between relatives and geographic location.The variance of genetic distance for indica local rice sorted according to the longitude and latitude was smaller than that according to province.Therefore,it is more reasonable to analyze genetic diversity of indica local rice grouping according to longitude and latitude than to province.
【Fund】: 国家“十五”科技攻关计划项目(2004BA525B02);; 国家重点基础研究发展计划(973计划)项目(2006CB100201 2004CB117201);; 农业部作物种质资源保护项目(NB05-070401-22-01)
【CateGory Index】: S511.21
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved