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ZHAO, Wei-Guo; MIAO, Xue-Xia; ZANG, Bo; ZHANG, Lin; PAN, Yi-Le; HUANG, Yong-Ping
Yíchuán xuébào, 09/2006, Volume: 33, Issue: 9Journal Article
The ISSR fingerprintings of 24 mulberry cultivars were constructed. Totally 80 bands were produced using 17 primers selected from 20 primers. Of them, 40 bands showed polymorphism. From the bands amplified, there were three independent ways to identify the mulberry varieties, such as unique ISSR markers, unique band patterns and a combination of the band patterns provided by different primers. ISSRs were very effective in differentiating the mulberry varieties. The mean genetic similarity coefficient, the mean Nei's gene diversity ( h), and the mean Shannon's Information index ( I) of mulberry cultivars were 0.8731, 0.1210, and 0.1942, respectively. This suggests that the genetic diversity of mulberry cultivars was low and the genetic base was narrow. Both UPGMA cluster and PCA (Principal Coordinates Analysis) analysis showed clear genetic relationships among the 24 mulberry cultivars. The major clusters were related to known pedigree relationships.
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