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| Reproductive Type Confirmation of Taraxacum coreanum Nakai |
| ZHANG Jian1，2，WU Zhi-gang1，2，ZHAO Xin1，2，MA Ming1，2，NING Wei1，2* |
（1College of Horticulture， Shenyang Agricultural University， Shenyang 110866， Liaoning， China； 2Ex-situ Conservation
Garden and Identification Center of Potherb Germplasm in Northeast China， Ministry of Agriculture，
Shenyang 110866， Liaoning， China） |
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Abstract Counting root tip chromosome numbers，artificial pollination experiments and flow
cytometry，etc. were used to confirm that Taraxacum coreanum Nakai was tetraploid. Artificial
pollination experiments showed that Taraxacum coreanum reproductive type was facultative apomixes，
and apomixes rate was around 50%．The result of testing by flow cytometer showed that the ratio of seed
cell ploidy level was 2C∶3C∶4C．The reproductive type of tetraploid T. coreanum was facultative
apomixes with independent endosperm development．
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Received: 15 March 2013
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