Plant Diversity ›› 2003, Vol. 25 ›› Issue (14): 1-3.
• Articles •
SUO ZhiLi, ZHANG HuiJin, ZHANG ZhiMing,CHEN FuFei,CHEN FuHui
Paeonia rockii is considered to be one of the main progenitors of Chinese tree peony cultivars,and hybridization is likely to be the most important way for incorporation of genetic composition of Prockii.However,no molecular evidence has shown relatedness of woody peony cultivars to Prockii so far.In this study,Prockii was used as a maternal parent crossing with other three Chinese woody peony cultivars (Psuffruticosa ‘Hai Tang Zheng Rong’,Psuffruticosa ‘Yan Zhi Hong’ and Psuffruticosa ‘Sheng Dan Lu’) as paternal parents.The relationships between the F1 hybrids and their parents were analyzed using ISSR (Intersimple sequence repeat) markers.Our results showed that ISSR fragments present in both parents were detected in the genomes of the F1 generation.Therefore,it is possible that some Chinese woody peony cultivars with a large blackpurple blotch at the lower part of petals originated through hybridization with Prockii as a parent.Our results also suggest that ISSR markers are useful for identification of hybrids and classification of cultivars.
Paeonia rockii；Psuffruticosa；Hybridization；ISSR Marker；Cultivar identification
SUO ZhiLi, ZHANG HuiJin, ZHANG ZhiMing,CHEN FuFei,CHEN FuHui. DNA Molecular Evidences of the Hybrids between Paeonia rockii and Psuffruticosa Based on ISSR Markers[J].Plant Diversity, 2003, 25(14): 1-3.
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